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G-700 Operation Manual
(Multiple channels Curved Screen Edge Blender)
Technical support:
E-mail: [email protected]
Tel: +886-2-8751-2785 ext. 301
Cell: +886-935-678-033
Skype: vns-inc
Version: 1.03
Website: www.vnstw.com.tw
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Table of Contents
1 Introduction…………………………………………………………………………………………..… 4
2 Outlook........................………………………………………………………………………………… 5
3 Functions and Features……………………………………………………………………….……... 5
4 Application................................................................................................................................ 7
5 Helpful Tips for system installation and setup...............………………………………………... 8
6 Application case study……………………………………………………………………………….. 10
6.1 Conventional curved screen edge blending….............……………………..…….….….. 10
6.2 4k daisy chain connection for curved screen edge blending...................................... 10
6.3 Multiple PC input simulation system.............................................................................. 11
6.4 Edge blending with projector at portrait position.......................................................... 11
6.5 Flexible display in edge blending system....................................................................... 12
6.6 Stretch image with full screen.....................................……………………………………... 12
6.7 High resolution edge blending with PC multi-windows display card.....................….. 13
6.8 “L/M” shape video wall with edge blending............……………………………………….. 15
6.9 Irregular curved display..................……………………………………………………………. 15
6.10 Active 3D and passive 3D display..................................…………………………………… 16
7 Internal Grid Pattern for Geometry Adjustment……………………………………………….….. 17
8 OSD menu and operation……………………………………………………………………………….. 18
8.1 OSD simultaneous control in all channels...................................................................... 18
8.2 [Picture] Color Adjustment……………………………………………………………….……… 19
8.3 [Image Setup] for PC graphics from VGA input……………………………………………… 20
8.4 [Image Properties]…………………..……………………………………………..…………….. 20
8.4.1 [Color]: Preset mode & Custom color…………………………………..……………… 21
8.4.2 [Input Signal] selection………………………………..………………………………….. 21
8.4.3 [Scaling]: Display aspect ratio…………………………………………………………. 21
8.4.4 [Output Mode] selection…………………………………………………………………… 21
8.4.5 PIP/POP setting (Picture in Picture & Side by Side)............................................... 22
8.4.6 [Orientation] (Flip & Rotation)…………………………………………...................….. 24
9 Video Wall Setting………………………………………………………………………………..……... 24
9.1 [Zoom]: split the image…………………………………………………………………………. 25
9.2 [Pan]: assign image location…………………………………………………………………… 25
9.3 [Overlap]: set image overlap pixel……………………………………………………………. 26
9.4 Example for three projector edge blending………………………………………...……….. 26
10 Passive 3D Display…………………………………………………………………….……………….. 27
10.1 System Configuration…………………………………………………………………….……. 27
10.2 System installation and setup………………………………………………………………… 27
10.3 GeoBox 3D settings……………………………………………………………………..……… 28
10.3.1 [Input Format]……………………………………………………………………………… 28
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10.3.2 [Output Format]…………………………………………………………………………… 28
10.3.3 [1080p 24Hz Output]…………………………………………………………………….. 29
10.3.4 [Identity]: check final 3D settings…………………………………………………….. 29
11 Active 3D applications………………………………………………………………………………… 29
11.1 Procedures for active 3D setting…………………………………………………………….. 30
12 [Anyplace]: Geometry Correction and Edge Blending…………………………………...…….. 31
12.1 Geometry alignment range…………..…………………………………………….…………. 31
12.2 Procedures for geometry alignment…………………………………………………….…… 31
12.3 [Reset] in geometry alignment...................................................................................... 32
12.4 How to increase the accuracy of geometry alignment................................................ 32
12.5 [Edge Blend]………………..…………………………………………………………………….. 33
12.5.1 [Edge] selection and settings………………………………………………………….. 34
12.5.2 [Gamma]: Color correction in edge blending area…………………………………. 34
12.5.3 [Offset]: Black level uplift……………………………………………………………….. 36
12.5.4 [Corner]: Adjust [Offset] compensation position…………………………………… 37
12.5.5 [Shift]: Edge blending area shift and Edge Mask…………………………………… 38
12.5.6 [Color]: Individual projector white balance and color correction………………… 38
12.6 [Gwarp] PC tool…………………………………………………………………………………. 39
12.6.1 When [Gwarp] PC tool is necessary……………………………………………………. 39
12.6.2 System configuration……………………………………………………………………… 40
12.6.3 [Gwarp] operation…………………………………………………………………………. 40
12.6.3.1 System connection……………………………………………………………. 40
12.6.3.2 [Warp Adjust]……………………………………………………………………. 41
12.6.3.3 [Video Wall]………………………………………………………………………. 41
12.6.3.4 [Edge Blend]…………………………………………………………………….. 42
12.6.3.5 Color [Uniformity] correction..………………………………………………. 42
12.6.3.6 [Save file] & [Save to Box]……………………….…………………………… 42
12.7 Example for 3 projector edge blending setup....…………………………………….......... 42
13 OSD Miscellaneous Functions—[Options]………………………………………………..………..... 47
13.1 System Information: [Information]…………………………………………………..……….... 47
13.2 OSD Language: [Language]……………………………………………………………………. 47
13.3 [Reset]……………………………………………………………………………………..……….. 47
13.4 [Accessibility]………………………………………………………………………………..……. 48
13.4.1 [Button Repeat Rate]………………………………………………………….………….. 48
13.4.2 [Menu Time Out]…………………………………………………………………….….…. 49
13.4.3 [Logo Time Out]……………………………………………………………………..……. 49
13.4.4 [Standby Time Out]……………………………………………………………………….. 49
13.5 [Setting]………………………….……………………………………………………..……….…. 50
13.5.1 Audio [Mute]………….…………………………………………………………….…….... 50
13.5.2 Frame Lock and Smooth Switching Mode…………………………………………… 50
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13.5.3 [Box ID]…………………….…………………………………………………………..…… 51
13.5.4 [Profile Setting]………….………………………………………………………………… 51
13.5.5 [Network]………………….……………………………………………………….……….. 52
13.5.5.1 [RS232] Command ………………………………..…………………………..… 52
13.5.5.2 RS232 setting……………………………………………………............……… 53
13.5.5.3 Example of low cost RS232 controller……………………………............... 54
13.5.5.4 [Ethernet] control…………………………………………….…………............ 54
13.5.6 [EDID] setting……………………………………………………………………………… 56
14 Screen Selection…………………………………………………………………………………….….. 58
15 Projector Selection……………………………………………………………………………….……. 58
16 Specifications…………………………………………………………………………………………… 59
17 Revision history………………………………………………………………………………………… 61
Limited Warranty
This device is designed and tested to the highest standards and backed by two years’ parts and labor warranty. W arranties are
effective upon the first delivery date to the end customer and are non-transferable. Warranty related repairs include parts and
labor, but do not include repair of faults resulting from user negligence, special modifications, abuse (mechanical damage),
shipping damage, and/or other unusual damages. The customer shall pay shipping charges when the unit is returned for repair.
Manufacturer will pay shipping charges for return shipments to customers.
Manufacturer does not assume responsibility for consequential damages, expenses or loss of revenue, inconvenience or
interruption in operation experienced by the customer. Warranty service shall not automatically extend the warranty period.
FCC/CE statement
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated
in a residential / commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.
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1 Introduction
G-700 is a curved screen edge blending processor with the ability to provide multiple processing channels
to control from 1 to 4 projectors based on user’s requirements. G-701 can provide single processing channel for
one projector, G-702 for 2 projectors, G-703 for 3 projectors and G-704 for 4 projectors. It was designed for
sophisticated edge blending as well as image warping, stacking, projection mapping, irregular video wall and
passive 3D…etc. One G-704 can execute 4 projector edge blending without any additional equipment or splitter.
Two G-704 can control up to 8 projectors.
Each processing channel has 3 input ports (1x HDMI, 1x DP, 1x DVI-I) to support 5 input formats (HDMI,
DP, VGA, DVI-D, YPbPr) and one HDMI output port. One 4K HDMI loop out port is for raw signal daisy chain
connection. Input ports support up to 3840x1080 @60Hz and 4k UHD @30Hz resolution with 4:4:4 full color
sampling. It is integrated with 10-bit high end processor, motion adaptive de-interlace and 3:2/2:2 pull-down.
PIP (picture in picture) and POP (side by side) are standard functions in each processing channel. In one
G-704, user can display up to 8 different input contents on the screen. If user requires PIP or POP image across
entire screen, user can use the first channel as PIP/POP processor and connect the output to other processing
channel input port to get PIP/POP image across entire screen. If user uses two channels for PIP/POP
processing, then user can get 3-4 different contents across complete edge blending screen.
Advanced warp technology is embedded in G-700. User can use front panel keypad, IR controller or PC
to perform edge blending and sophisticated geometry alignment up to 17x17 grids through user friendly
operation interface. Geometry adjustment range is big enough for most of the applications. By remote controller,
user can adjust corner position up to H=+_600 pixels and V=+_400 pixels in full HD output resolution. If PC tool
is used, geometry alignment range will be double. User can also apply serial connection among processing
channels to increase geometry adjustment range for some special applications.
It can perform color and white balance adjustment in individual projector. Edge blending region gamma
correction and non-edge blending area black level uplift are also standard function in G-700.
HDMI loop out supports daisy chain connection up to 3840x1080 @60Hz or 4k/2k @30Hz and allows
large display with multiple G-700 cascaded without video distributor. Video wall function in G-700 is to crop and
allocate source image for each projector. Complete curved edge blending can be achieved without PC, video
distributor and splitter.
G-700 is an ideal solution for simulation. It can connect with inputs from multiple PC and combine them
into one seamless image. It also provides flexible displays in edge blending system. For a 3x projector edge
blending system, user can configure as 1+1+1 independent display, 1+2 (two edge blends) and all-in-one (three
edge blends). User can also execute edge blending with projector at portrait position to increase image height. It
is a good fit with laser projector without the limitation in installation angle.
In order to optimize video performance, G-700 is designed to support non-VESA standard input timing
and allow user to create any EDID timing in the range between 1024x768 and 3840x2160.
With G-700, users can replace high end projector with low cost projector without lens shift, warp and edge
blending. It provides easy configuration, low entry barrier, cost effective, reliable and flexible solution.
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2 Outlook
3 Functions and Features
A. Structure
Each G-700 consists of 1-4 processing channels based on different versions: one channel: G-106, 2
channels: G-702, 3 channels: G-703, 4 channels: G-704
B. Input and output in each processing channel
1. Input ports: 1x HDMI, 1x DisplayPort and 1x DVI-I (support HDMI, DVI, VGA, YPbPr input
signals)。
HDMI & DisplayPort support 4k/2k @30Hz, WQXGA & 3840x1080 @60Hz with 4:4:4 sampling
without compression.
DVI-I port: if the input is through HDMI cable, it can support 4k/2k @30Hz. If input from DVI or
VGA signal source, it can only support up to 1920x1200 @60Hz.
Connect with all kinds of video sources and support none VESA standard input resolution.
2. Output ports: 1x HDMI. Preset output resolution: 720x480、XGA、WXGA、1280x1024、1366x768、
1400x1050、1600x1200、1920x1080 & 1920*1200。
3. Loop out port: 1x HDMI (supports 3840*2160@30Hz) for daisy chain connection and monitoring.
4. Audio input/output: HDMI embedded audio
C. Image warp, geometry alignment and edge blending
1. With full functions for quick 4 corner alignment, vertical and horizontal keystone correction,
Pincushion & Barrel adjustment, image warp and image rotation and flip.
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2. Each unit controls up to 4 projectors and can be expanded with multiple G-700 to support unlimited
number of projectors.
3. Integrated with full function front panel keypads and IR remote controller. Manual geometry
alignment up to 9*5 grid pattern. The geometry adjustment range is up to +_600 pixels in horizontal
direction and +_400 pixels in vertical direction at each corner in FHD output.
4. PC software tool is available for warp and geometry alignment up to 17x17 grid pattern. After
finishing geometry alignment, the parameters can be stored in G-700 and no more PC is needed. The
geometry adjustment range will be double if compared with remote controller adjustment, i.e.
H=+_1200 pixels and V=+_800 pixels in full HD output resolution.
5. Through applying serial connection with multiple processing channels, user can expand geometry
alignment range. It is convenient for special application required extreme big geometry adjustment
range.
6. Execute 4 directions edge blending. No limitation in the number of the projectors.
7. Provide complete functions for edge blending fine-tune and color correction.
8. Precise black level uplift at selectable area to compensate light leakage in the projector.
9. White balance and individual color correction for each projector.
10. One PC tool can control up to 4 processing channels simultaneously.
11. Able to perform flat & curved screen seamless edge blending, including irregular curved screen and
360 degrees curved screen.
D. Edge Mask:
Able to do edge mask with black background in each edge up to 500 pixels.
E. Passive and active 3D
1. Auto decode 3D signals for passive 3D display, including signal source from Blue Ray, STB, game
console, media player and PC.
2. Auto decode Stereoscopic Player/ Nvidia 3D Vision 1080p @120Hz 3D format and Blue Ray 1080p
24Hz 3D signal into 720p/XGA/WXGA 120Hz signal for active 3D display.
3. Support standard HDMI 1.4a 3D format, including 1080p/24Hz full HD, Side by Side, Top-Bottom,
frame sequential & Line interleaved (Line by Line).
4. Support 3840x1080 Full HD Side by side 3D format and SONY 1080i/60Hz frame packed 3D..
5. Zero latency in RH/LH eye image to get the most comfortable 3D.
6. 3D display can be on flat and curved screen. It can be expanded by more projector image stacking
or edge blending.
F. High end 10-bit video processor
1. Designed with 10-bit high end processor with 3D motion adaptive de-interlace, low angle smooth
algorithm and 3:2/2:2 film mode detect and recovery function.
2. Complete color adjustment function, including brightness, contrast, hue, saturation, preset colour
mode and independent RGB color adjustment.
G. Video wall function
1. Image split and assign location for each projector.
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2. Overlap pixel adjustments up to 900 pixels for image position shift, bezel compensation and creating
overlap region for edge blending.
3. Connect with 4k/2k input signal and split the image for display devices without additional PC, image
splitter or other devices.
4. Serve as video wall controller for irregular video wall display up to 15x15 matrix display from single
signal input source.
H. PIP/POP function
1. PIP (picture in picture): with flexible PIP size (max. up to 1024x768), location and aspect ratio.
2. POP (Picture outside picture): side by side images with full screen or maintain original aspect ratio.
3. If set one processing channel at the front end, the PIP/POP function can be across entire display
system.
4. Two landscape contents can be displayed on one portrait LCD with two contents at top/bottom
position.
I. Color Uniformity adjustment
1. Color uniformity adjustment with 64x46 pixels as one adjustment units.
2. Independent RGB color gain and offset adjustment.
3. It can be used for overlapped area color correction in edge blending application.
J. Image rotation and flip
4. Image 90/180/270 degrees rotation.
5. Image flip in Front/Rear, Left/Right and Top/Bottom directions.
6. POP image can be rotated at 90/270 degrees to display dual landscape contents on one portrait
display with two contents at top/bottom position.
K. System control
1. 1.5U housing for easy rack installation. Professional design and reliable.
2. Full function front panel keypads, IR remote controller, USB, RS232 and optional Ethernet control.
3. USB interface for code update and PC tool operation.
4. Internal grid pattern for easy geometry alignment.
5. Programmable EDID for user to create any EDID with timing between 1024x768 and 3840x2160.
6. BOX ID for convenient multiple units control at the same time.
7. Five preset Profiles to save user settings and can be recalled at any time.
8. Automatic power ON/OFF through input signal control. While no input signal is detected, it will shut
down output so that user can power ON/OFF complete system through the control in signal source.
9. Gwarp PC tool for sophisticated geometry alignment up to 17x17 grids.
10. Dimension and weight: 440x189x60mm, 2.8kg (Body only)
4 Application
1. Simulation with multiple inputs from multiple PC.
2. Edge blending with projector at portrait position.
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3. Flexible display in edge blending system. For a 3x projector edge blending system, user can
configure as 1+1+1 independent display, 1+2 (two edge blended) and all-in-one (three edge
blended).
5 Helpful Tips for system installation and setup
a. Select digital input to get better image and avoid image position shift.
b. If 4k signal connection distance is more than 10m, please select a certified HDMI cable to avoid
unstable signal connection. Usually [High Speed HDMI + Ethernet] cable will be better.
c. The quality for signal adapter or converter, such as HDMI to DVI adapter and DisplayPort to HDMI
converter, may downgrade the signal quality and cause issue. Please select qualified ones.
d. If user can see blue background image with [Power Saving Mode] message, it means the signal
connection between projector and GeoBox is OK but no input signal detected by GeoBox. Please
check signal source or replace a different input source to test.
e. If user can’t see [Power Saving Mode] message or splash screen, please check the connection
between GeoBox and projector. User can connect to a monitor to check the output from GeoBox.
[Loop out] port is for raw signal daisy chain connection and is not a output to projector.
f. The output resolution setting shall be the same as projector native resolution to get the best video
quality. After geometry alignment, this output resolution can’t be changed. Otherwise, geometry
position will be shifted and required further adjustment.
g. In the application with short throw ratio projector on curved screen, it is possible that the image
location is beyond the maximum adjustment range in manual adjustment. In this case, Gwarp PC
tool is required to double the adjustment range.
h. During installation setup process, please apply FHD signal to the system for easy setup. After
finish the setup, user can select optimized EDID from OSD menu to get optimized video quality.
i. The optimized EDID resolution should be the final resolution after edge blending. For instance, if
user uses three XGA projectors for edge blending with 250 overlapped pixels, then the best signal
for this setup will be 1024*3-250*2=2572. It means 2572*768 will be the best signal resolution for
this setup. User can customize EDID with this resolution in GeoBox. Some PC may not be able to
output the same custom resolution. In this case, user needs to set PC output resolution as close
this timing as possible. GeoBox can support none-VESA standard input timings.
j. In addition to the resolution settings, user needs to provide content with the same aspect ratio as
screen to ensure no distortion on the screen.
k. To reset all projectors before edge blending to get the same settings in all projectors.
l. To turn off auto keystone function to avoid image shift.
m. In order to avoid interference among multiple GeoBox during the installation, the best way is to
install IR receiver separately near each projector. Each GeoBox is equipped with up to 4 channels.
User can select control channel through keypad in front control panel or remote controller. If
multiple GeoBox are used, user can set Box ID for each GeoBox through [Box ID] Menu. Press
number keys in Remote Controller for the control of multiple GeoBox:
850: simultaneous control for all GeoBox
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851: control GeoBox ID No. 1
853: control GeoBox ID No. 3
n. OSD Lock / Unlock: When continuously press [Menu] key on Front Panel or IR Remote Controller
for 5 seconds, the OSD function will be locked to prevent all channels from setting change by
negligence. To press [MENU] key for 5 seconds again, it will unlock OSD. If you lock from remote
controller, you can unlock from Menu key on front panel and vice versa.
o. [Image Setup] menu will not be activated if the input source is not from VGA.
p. Please reset GeoBox before any new application to avoid unexpected settings in the system.
OSD Reset function will only apply to one channel only. If user wants to reset all channels at the
same time, please insert small pin into RESET hole at the back panel for 5 seconds to reset them.
q. To set [Menu Time Out] to “0”, the OSD will appear till the OSD Menu has been turned off
manually or system input timing change.
r. User can turn off output signal to projector through [Standby Time out] setting. Once no input
signal is detected, GeoBox will turn off output signal automatically after preset time.
s. Default Internal Grid Pattern represents 32x32 pixels no matter which input resolution is selected.
t. Only HDMI input port can provide HDMI raw signal loop out for daisy chain connection. This loop
out signal has no any processing.
u. When [Gwarp] PC tool is used, user needs to save the setting into GeoBox through the OSD
menu: [Anyplace] [Gwarp Pro] select [UserMap 1-10] to save the settings. Then PC can be
removed. The saved settings include geometry and color uniformity information.
v. When Power Off/ON GeoBox, it will maintain the final settings.
w. User needs to save the final setting into [Profile] under [Options] menu for long tern stored inside
the system. Even the system is reset, the [Profile] settings will be kept without change.
x. Continuously press PATTERN button, internal test pattern will show different colors for easy
installation: White—Red—Green—Blue—Blank. When in “Blank”, user can see OSD and the
image from signal source. In this case, PC test pattern can be applied.
y. Please use INFO hot key on front panel or remote controller to check the input and output timing.
The indicators on the front panel will show the input/output connection status.
z. When OSD is activated and user switches to another processing channel, the OSD will stay active.
Once user switches back to this channel again, user can operate the same OSD menu again. This
is convenient for geometry alignment. User can pop-up the same geometry menu (such as 9x5) in
both processing channels and switch between two channels for quick geometry alignment.
aa. User can check the LED indicator on the front panel to know the status of the input signal and
output connection. If all orange and green LED are lighted up, it means G-700 has detected the
input signal source and output connections. The system connection should be correct.
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6 Applications case study
6.1 Conventional curved screen edge blending
6.2 4K daisy chain connection for curved screen edge blending
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a. No PC is required.
b. To feed signal from any signal source to G-700 HDMI input port and connect to the 2nd G-700 through
loop out port. No HDMI splitter is required. The latency among two G-700 will be only few lines and
negligible. The number of G-700 for daisy chain can be more than 10 units and it will depend on HDMI
cable quality. Please test before installation.
c. The maximum input resolution can be up to 2560x1600/3840x1200 @60Hz or 3840x2160 @30Hz to
get the best result in multiple projector edge blending.
d. User needs to do geometry adjustment and warping function to align the images onto curved screen
and let the images between two projectors have the same grid size and with necessary overlap pixels.
e. After geometry and warp adjustment, user can apply Video Wall function in G-700 to split the image,
crop correct area and assign to each projector.
f. The last step is to do edge blending to combine the images into one seamless screen.
g. If the application is in dark environment, to do [Offset] compensation is required to eliminate black level
color difference between edge blending area and none edge blending area.
6.3 Multiple PC input simulation system
6.4 Edge Blending with projector at portrait position
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6.5 Flexible display in edge blending system
6.6 Stretch image with full screen
Left
display modes can be configured
in 3 projector edge blending system:
1+1+1:
Each projector can display
independent content.
1+2: two projectors show one
edge blended content and another
one show standalone content.
All in one
User can save all the settings in
PROFILE and recall at any time
by RS232 or remote controller.
Able to execute edge blending
with projector at portrait position
to increase image height.
G-700Ex can rotate the content
and implement edge blending.
It is not necessary to rotate the
content in advance.
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6.7 High resolution Edge Blending with PC multi-windows display card
P4
P5
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a. Usually, each full HD signal can feed up to 3- 4x projectors for 10m screen and still keep acceptable
video quality (it will also depend on the watching distance).
b. Many video cards can easily provide upto 4x 3840x1080 outputs.
c. Each PC output is fed into one G-700, then to 4x projectors. 4 outputs will be fed to 16 projectors.
d. If the overlap pixels is 250 in 8 prlojector edge blending system, it can provide a video wall with
13,610x1080 output resolutions.
e. If the watching distance is 5m, the video pixel pitch can be about 5mm. In this case, the total screen
size can be up to 13610x5mm=68m and still keep acceptable video quality.
f. The display card should be set at extend mode and have the function to set overlapped pixels between
two output ports. In the case of two 4k output display card, PC should be able to set overlapped pixels
between output P4/P5,. The overlapped pixels should be up to about 15%-25% of the output resolution.
The rest overlapped areas can be set by GeoBox.
g. If the display card doesn’t have above mentioned overlap setting function, then user needs to create a
content with some overlapped pixels up to about 15%-25% among outputs.
h. GeoBox can do geometry alignment, split the image, assign image for each projector and capture the
right size of the image for edge blending.
i. The advantage for this kind of application is high output resolution. However, it still has some
limitations.
The major input source shall come from multiple PC, PC with multiple windows disply card or
media player with cascade function (such as Bright Sign).
The PC shall have enough processing power to handle multiple output windows. More video
output ports from display card will occupy more PC resource.
Different playing contents may also require different CPU resource. User needs to test before
implement this kind of display system.
The output aspect ratio will be changed depending on the display system. User needs to take care
of the aspect ratio in the source content in advance.
j. Edge blending will increase the total resolution. Usually, the video quality will be good enough for most
of the applications if output resolution in each projector can reach XGA resolution.
k. User can connect with other signal sources like Blue Ray or Media Player to other input ports in G-700.
By selecting different input ports and applying different GeoBox settings, it will provide different display
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modes. For example, for 3 projector edge blending, user can set all three edge blending, two projector
edge blending and one has discrete display or each projector has independent content.
l. GeoBox can reduce the CPU loading in PC and reserve more CPU resource to handle interactive or
other operation without image lag.
6.8 “L/M” shape video wall with edge blending
Below is example of the application in restaurant with “L” shape video wall:
a. 3x WXGA projectors: two projectors edge blending on the front screen and another projector is located
at side wall.
b. The image is met at the corner. It is not necessary to do edge blending at the corner. User just needs to
do geometry alignment to let the image meet at the corner.
c. User can use Video Wall function to split the image into 3x (using ZOOM function) and use PAN and
OVERLAP function to capture the right size of the image and assign to each projector.
d. Three projectors should have right image captured size to avoid different scaling factor in the projectors.
It can be adjusted through Video Wall Overlap function.
e. To do edge blending on the front two projectors and the image in side wall only needs geometry
alignment and Video Wall setting.
6.9 Irregular curved display
User can use G-700 to do manual adjust and achieve curved display for most of regular curved screen.
More complicated shape can be executed by Gwarp PC tool up to 17x17 grids. User can also execute more
geometry alignment range by serial connection with multiple channels. If necessary, user can select single
channel processor G-106. It has the same geometry alignment function as G-700.
“L” Type video wall with three projectors.
Two projector edge blending + one
projector in the side wall.
GeoBox can combines all image
together with correct scaling factor into
one seamless image.
Three walls plus one floor with 6 projectors.
3 projectors execute edge blending on “M”
walls and 3 projectors executed edge
blending on floor.
GeoBox combined all images with the right
scaling factor into one seamless image.
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6.10 Active 3D and passive 3D display
User can use one G-702 as 3D de-multiplexer to decode HDMI 1.4 3D signal or active 3D frame sequential
100/120Hz signals for passive 3D display using two projectors. This kind of passive 3D application can be
applied to bigger screen through edge blending with one G-704 and 4x projectors. User can also increase
brightness in 3D system through image stacking with more projectors.
User can convert Nvidia 3D Vision 1080p 120Hz 3D signal and 1080p/24Hz frame packing 3D from Blue
Ray into 720p/XGA/WXGA 100Hz/120Hz frame sequential 3D signal for DLPLink 3D Ready projectors.
Besides 3D format conversion, GeoBox can also apply geometry alignment for active 3D curved screen
display. If user wants to implement active 3D edge blending, user can’t use color wheel synchronization
system in DLP 3D Ready system and needs to find a method for the synchronization of multiple projectors
because the color wheel in multiple projectors can’t be synchronized. 1080p 24Hz frame packed 3D signal
will be converted into 720P 120Hz output but not 1080p 24Hz frame packed 3D format output.
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4x projector edge blending for passive 3D system.
7 Internal Grid Pattern for Geometry Adjustment
To select processing channel from front panel or remote controller and press [PATTERN] key, it will show
internal grid pattern. If Gwarp2 PC tool is used, the keyboard [P] key can activate grid pattern. By
continuously pressing [PATTERN] key, different color grid patterns will appear cyclically from White Red
Green Blue Blank. If user wants to disable grid pattern, please use Exit key in Remote Control or
Menu key in Front Panel. Each grid pattern is 32 pixels in width and height. User can calculate the overlap
pixel via the number of grid pattern and figure out the pixel number.
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This internal pattern can’t co-exist with OSD menu. During geometry adjustment, user needs to select
adjusting item, then click [Enter] to pop-up grid pattern. If user wants to use external grid pattern from PC or
other signal sources or see OSD menu instead of internal grid pattern, user can continuously click pattern
key to show it. A flashing indicator at the adjusting point will appear. User can see real time grid pattern
change during the adjustment. It is recommended to connect through digital interface (HDMI or DVI) to the
projector to avoid position shift after installation.
If user wants to show the adjustment value (pixel #) while doing geometry alignment, user can continuously
press [Pattern] key to show the adjusting value.
Note: The grid size of G-700 is 32x32 pixels and some GeoBox model is 50x50 pixels. If user wants to do
edge blending with G-700 and other model, user needs to apply external grid pattern so that all GeoBox will
show the same grid pattern. Please download [Edge Blending grid pattern] from VNS website. Continuously
press [Pattern] hotkey, user will show the same external pattern in all projectors for easy geometry
alignment. If user uses Gwarp PC tool, user can set grid size to 50x50 to get the same grid size in all
projectors.
8 OSD menu and operations
4 processing channels will share the same OSD Menu keys and remote controller. Please select the
channel # through front panel key pad or CH1-CH4 hot keys on the remote controller to operate OSD
menu in each channel.
8.1 OSD simultaneous control in all channels
a. [All] function: Allows user to control all channels in G-700 simultaneously. When press [All] function key
and functional hot key, the system will execute the same OSD command to all channels.
b. [All] enable keys:
•
Remote controller: [CH A/B]
•
Front panel: [All] menu key
c. LED Indicator: When [All] is activated, all channel LEDs on Front panel will show up.
d. [All] function will be functional in the first level of OSD in below OSD menu
Internal grid pattern can be displayed
after press [PATTERN] key. External
pattern can also be applied.
When use Gwarp PC tool for geometry
alignment, user can change grid size.
Please press channel selection key to
switch among different channels.
Press [Exit] to exit from grid pattern.
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•
MUTE: enable/disable Audio Mute function
•
EXIT: close all OSD MENU and grid pattern even each channel shows different OSD.
•
INPUT: select input port
•
OUTPUT: select output resolution
•
4 CORNER: 4 Corner geometry adjustment menu
•
WARP: Cureve alignment menu
•
EDBL(Edge Blend): Edge Blending menu
•
V.Wall (video wall): Video wall menu
e. [All] function will be functional up to the second level of OSD, remote control as example:
•
[CH A/B][INFO]: to show system information. If press [CH A/B] [EXIT] again, all the
information will be close.
•
[CH A/B] [PATTERN]: Activate grid test PATTERN. User can press [CH A/B] key and press
[Pattern] to change pattern color in all channels at the same time.
•
[CH A/B][Profile]: To active [Profile Load] menu. All channels will show the same INDEX when
follow [CH A/B] [Profile] [Number key] (don’t select from OSD direction key). Profile menu will
show up for 5 seconds till the system finishing settings.
•
User needs to store the same settings into the same Profile Index so that end user can select
profile Index in all channels at the same time.
•
Except for the above, all the other function only functional up to the first level of the OSD.
8.2 [Picture]--Color Adjustment
a. The items under [Picture] menu will apply to both processing channels.
b. This menu is only active under below conditions:
[Picture] menu will be grayed out and not functional when the color setting is in [Preset Mode] under
[Image Properties] menu. User needs to get into [Custom] menu and press [Save] menu to activate
[Picture] menu.
When the input signal is in YUV domain, all the items under menu are free to be accessed.
If the input signal is in RGB domain, only [Brightness] and [Contrast] can be adjusted.
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c. User can do further separate RGB individual color adjustment under [Image Properties] menu.
8.3 [Image Setup] for PC graphics from VGA input
a. [Automatic]: It will do automatic image position alignment.
b. [Manual]: manual setting for signal Phase and Clock to eliminate image noise in analog input
c. [Horizontal Position]: to adjust the image horizontal position.
d. [Vertical Position]: to adjust the image vertical position.
e. When the input is VGA signal, GeoBox will execute image position auto alignment. After this process,
GeoBox will not do auto alignment again to avoid image shift unless VGA input is from another PC.
8.4 [Image Properties]
[Image properties] is designed to select image color temperature, adjust independent RGB color, select
input port & output resolution, set display aspect ratio, set PIP/POP function and image flip/rotation. There
are six sub-menus.
Five items under [Picture] menu. All the
adjustments will be applied to both
processing channels.
Under [Edge Blend] menu, user can
adjust color in individual projector.
[Image Setup] menu can only be activated
when video signal input is from VGA analog
input port.
Six sub-menus:
[Color]: Color temperature selection and RGB
independent adjustment
[Input Signal]: to select input port
[Scaling]: to set display aspect ratio
[Output Mode]: to select output resolution
[PIP setting]: to do PIP/POP settings
[Orientation]: image flip and rotation setting
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8.4.1 Color
8.4.2 Input Signal
8.4.3 Scaling
8.4.4 Output Mode
Under [Color] menu:
4 Preset modes for color temperature selection
[Custom]: Independent RGB color adjustment.
Under this menu, if user select [Save], then
[Picture] menu will be activated for access
[Full Screen]:
To fit source image for full screen display
[Original AR]
To display source image with the same aspect
ratio as source image
The setting will also affect POP image display
with full screen or original aspect ratio.
User can select input port from this menu or
shortcut keys on remote controller and front
control panel.
VGA and DVI-A input are through the same
input port in the system. User can’t use these
two input ports at the same time.
11 preset output resolutions can be selected from
this menu.
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8.4.5 PIP/POP Setting (Picture in Picture & Side by Side)
a、 Picture in Picture (PIP) function is to display up two images from one processing channel. The
maximum size of the sub-image (PIP) is 1024x768 pixels.
b、 The input source for PIP is selectable and can be from any input port from the same processing
channel. The input for main and PIP image can be the same or swapped.
c、 The location of the PIP image can be controlled by OSD menu at any location inside main image.
d、 The size of the PIP image is also flexible and can be controlled by OSD menu.
e、 Unless the image is rotated at 90/270 degrees, both main and PIP image will go through high end 3D
motion de-interlacing. When the image is 90/270 rotated, please apply progressive signal source to
get the best video quality.
f、 If PIP/POP image needs to be across entire screen, user needs to use the first processing channel as
PIP/POP processor and output the image to HDMI port in next channel, then daisy chain connection to
all processing channels. After edge blending, user can see PIP/POP across entire screen.
Display: Under Display menu, there are three items:
Disable: to Disable PIP or POP function
PIP: to select PIP display function
Five sub-menus under [PIP setting] menu,
--Display: enable PIP or POP
--Size: set PIP size
--Position: set PIP position
--Ratio: set PIP display aspect ratio
--Source: select input source for PIP/POP
User can set PIP/POP function through this
menu.
POP image aspect ratio shall be determined
from [Scaling] menu.
User can combine PIP/POP function with other
function like [Orientation] or [Video wall] setting
to perform different display styles.
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POP: to select POP (side by side) display mode. User can select maintain original image aspect ratio
or full screen mode through [Scaling] OSD menu under [Image properties].
Size: (Only apply to PIP function)
The size of the PIP image can be adjusted though [Size] OSD menu pixel by pixel.
The maximum size of PIP image is 1024x768 pixels.
If user sets output resolution at 1024x768 resolution, PIP image can be displayed with full screen
in the output.
Position: (only apply to PIP function)
The position of PIP image can be adjusted in H&V directions through Position OSD menu.
The PIP image will be maintained inside main image and can’t be outside main image.
Pixel by Pixel PIP image position adjustment.
If PIP/POP image needs to be across entire screen, user needs to use the first processing
channel as PIP/POP processor and output the image to HDMI port in next channel, then daisy
chain connection to all processing channels. After edge blending, user can see PIP/POP across
entire screen.
Ratio: Aspect Ratio of the display image. (Only apply to PIP function)
Full Screen: the same aspect ratio as main image or
Original AR: the same aspect ratio as PIP input source.
POP image aspect ratio can be adjusted through [Scaling] under [Image Properties] OSD menu.
Source: User can select the input source for PIP/POP image from all input ports. By selecting different
input ports for Main & PIP/POP images, user can have different combination of the display. User can
save different settings into [Profile] under [Option] menu and recall at any time.
Rotating function combined with PIP/POP
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User can apply image flip and rotation function with PIP/POP (please see next section). When apply
POP function and rotate the image at 90/270 degrees, user can display two landscape contents on
portrait display at Top/Bottom location. User can select full screen or maintain original aspect ratio
through [Scaling] menu under [Image Properties].
8.4.6 Image Orientation (Flip & Rotation):
This image orientation function will be applied to entire image, including PIP & POP images.
User can see the direction of the TEXT “R” to do image flip and rotation.
OSD Menu will maintain at original direction without change.
9 Video Wall Setting
The purpose for Video Wall Setting is to determine the display Matrix, split the image and assign each
GeoBox/display device to the right location in the matrix. The overlap pixel between two images can also be
adjusted pixel by pixel so that the video wall can meet the requirements in different application environment.
The maximum video wall can be up to 15x15 matrix display with overlap up to 900 pixels for edge blending.
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9.1 [Zoom]: split the image
9.2 [Pan]: assign image location
Press Menu Keypad on Front Panel or
remote controller to enter [Video Wall] OSD
menu.
[Video Wall] hotkey on the bottom right
position of the remote controller is available
for quick access.
Video wall
function can crop image for edge
blending and assign to projectors.
Use [Zoom] to split input image in horizontal
and vertical directions. Maximum split image is
15x15 in both horizontal and vertical directions
from single input source.
Use [Pan] to determine the location of each
split image in the display in both horizontal
and vertical directions.
Default setting:
Horizontal Pan=1
Vertical Pan=1
For 3x1 displays
, Horizontal Zoom=3, Vertical zoom=1
For 3x3 displays, Horizontal Zoom=3, Vertical Zoom=3
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9.3 [Overlap]: to set image overlap pixels
In multiple projector applications, if the overlap region has different size due to installation position
limitation, the overlap value may be different between projectors. However, the total overlap value
should be the same to maintain the same scaling factor.
Please contact us for the overlap value in this kind of irregular overlap condition.
User can use Video Wall overlap setting to fine-tune the image in overlap region. It can compensate
geometry mis-alignment and let image become much clearer.
9.4 Example for video wall settings in edge blending
After
geometry alignment and [Zoom] &
[Pan].
Double images in overlapped area.
Need to do [Overlap] setting.
Original images connected to three
projectors before geometry alignment.
Use [Overlap] to determine overlapped
pixels between two adjacent displays. It
will change image cropping area and can
change image aspect ratio.
In projector edge blending, user needs to
select correct Edge and crop the right
overlapped pixels for each projector.
For No. displays: For No.
displays:
Horizontal Pan = 3 Horizontal Pan = 3
Vertical Pan = 1 Vertical Pan = 2
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a、 An Excel Spread Sheet can be provided for the calculation of the Video Wall Overlap setting value.
b、 For dual projector edge blending, user can increase [Overlap] value in each channel at the same
time. Then user will see the overlapped images to come closer till two image 100% match together.
c、 For dual projector edge blending, user can use below equation to calculate overlap pixel.
Assumption: Input signal:1080p, G-700 output to projector: XGA, Overlap 224 pixels (7 grids)
Overlap value=1920/(1024*2-224)x(224/2)=118 pixels.
10 Passive 3D Display
10.1 System Configuration
GeoBox will decode 3D format from all kinds of 3D video sources, including Blue Ray DVD, STB, Media
player, Game console and PC… 3D signal will be decoded by GeoBox into signals for Right/Left eyes.
The signal needs to be displayed through two projectors. Each projector will display signal only for right
eye or left eye. User needs to set a polarized filter in front of the projector and also wears polarized
glasses. The glasses need to match the polarized filter in front of the projectors so that the right eye can
only see the scene for right eye and the left eye can only see the scene for left eye. Silver 3D screen is
also required to preserve the polarization of the light for 3D display. It is possible to use optic spectrum
method from Dolby, Infitec or Omega Optical to allow 3D displayed on normal 2D screen.
10.2 System installation and setup
After video wall Overlap adjustment and
apply Edge Blending: No more double
image in overlap region and smooth the
uniformity of the color and brightness.
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a. GeoBox should not put at side of the projector where the ventilation hot air comes out.
b. Two projectors can be put side by side or top/bottom. Closer position will reduce geometry adjustment
range and reduce the loss of the image resolution and brightness. Please make sure hot ventilation air
will not affect the other projectors. Isolated board between two projectors can be added if necessary.
c. Set higher output resolutions (such as FHD) from 3D signal source and connect to any input of GeoBox.
GeoBox will decode and distribute the signals for two projectors.
d. Each GeoBox is connected to one projector for right/left eye display.
e. Install polarized filter at some distance from projector lens to avoid thermal damage (at least 5-10 cm).
f. Setup the polarized filter and glasses so that right/left eye can only see the scene for one eye.
g. Use geometry alignment function to align the images from two projectors completely matching together.
Please place the polarized filter in front of the projector before [4 Corner] adjustment because polarized
filter will affect the direction of light beam from projectors. Some deviation is allowed for 3D display but
will affect the performance in 2D display. A good alignment will give double brightness for the projection
in 2D display. For a good double brightness application, two projectors should be placed as close as
possible and the screen must be flat or smooth curve.
10.3 GeoBox 3D settings
10.3.1 Input Format]
10.3.2 [Output Format]
4 sub-menu under [3D Properties] menu
Select [Automatic] if the 3D signal is
standard 3D formats from Blue Ray player
or sources with 3D INFO inside the signal.
Select [Side By Side], [Top-Bottom] or [Line
Alterenative] based on user’s 3D input
sources.
[2D/3D] hotkey on remote controller is for
quick switch among different 3D formats.
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10.3.3 [1080p 24Hz Output]
If the input is 1080p 24Hz and the projectors can also support this signal with ME/MC processing, please
select [Enable] in [1080p 24Hz Output] to get the best 3D performance. This 24Hz output can be applied to
non-3D signal as well.
10.3.4 [Identify]: Verify final 3D settings
If still can’t verify “R” & “L” characters in both eyes, please check below again:
Is the screen for 3D display?
Are the Glasses and polarizers the same types and paired for the RH & LH eyes?
Please check from [Output Format] menu and make sure [Right Eye Frame] is connected with RH
eye projector and [Left Eye Frame] is connected with LH eye projector.
Is the Blue Ray player PlayStation set to [Auto 3D] or [1080p frame packing] mode for 3D signal
output?
If Side by Side or Top-Bottom 3D formats are used, please check the aspect ratio in video source
output to make sure GeoBox will receive full screen image.
Is there any HDMI or signal source compatibility issue and only one projector shows image?
Are the HDMI cables qualified and the length not too long?
After the above procedures, apply 3D signal source and wear 3D glasses, user can enjoy the most
comfortable and healthy 3D system. It is the best solution for children with minimum harm to the eyes.
11 Active 3D applications
For DLP-Link or Nvidia 3D Vision active 3D display, user needs to provide 100/120Hz signal to projectors
integrated with either DLP-Link 3D Ready or Nvidia 3D Vision capability. If multiple projectors are used,
shutter glasses will only synchronize with one emitter among these 3D Ready projectors. G-700 can
Activate [Identify] menu to show “R
& L” characters on the screen
simultaneously to verify the final
3D settings in the system.
RH eye should see only “R” and
LH eye should see only “L”.
To set [Right Eye Frame] for RH projector
and [Left Eye Frame] for LH projector.
[Output Fromat] setting is based on the
filter location. If RH optical filter is
installed at LH projector, then user needs
to set LH projector at [Right Eye Frame].
User can swap [Output Format] setting to
fix wrong position installation in optical
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support 100/120Hz frame sequential 3D signal up to full HD and also 1080p 24Hz frame packed 3D
format from Blue Ray player, execute geometry warp, edge blending or stacking for these signals and
output 720p/XGA/WXGA 100/120Hz signals for active 3D display.
In multiple projector active 3D applications (edge blending or stacking), please select DLP projector with
“3D Ready” function. The projector should be able to select [3D enable] and [3D Sync] functions
separately because only one projector in edge blending can enable [3D Sync] and all the other projectors
shall Enable 3D but turn off [3D Sync] to let the glasses only synchronize with one signal. Please note
that after edge blending in active 3D system, it will not support side by side and top/down 3D signal
because once this kind of 3D signals have been gone through geometry alignment, the image location
will be also changed. It can’t show correct 3D effect. Please also note that multiple projector active 3D
system may meet R/L inverse image issue. User needs to swap R/L channel through glasses or
projector.
The major functions of G-700 in active 3D applications are:
a. Geometry adjustment to fit image on to curved screen.
b. Edge blending to enlarge the display with multiple active 3D projectors.
c. Image stacking to enhance the brightness using multiple active 3D projectors.
d. Format conversion: Convert Blue Ray 1080p 24Hz frame packed and PC or Nvidia 3D Vision 1080p
120Hz signals for active 3D display.
e. GeoBox can also convert 1080p 120Hz input into 1080p 60Hz output for passive 3D or 2D display.
11.1 Procedures for active 3D Setting
a. To select the output resolution in GeoBox to XGA (for XGA projector) or 720P (for projector native
resolution larger than 720P) through front panel or remote control hotkeys.
b. To set 3D output format at [XGA 120Hz output] or [720P 120Hz output] under 3D Properties menu.
c. If user selects other output resolution except XGA or 720P, [3D Ready] menu will be grayed out and
user can’t select 120Hz output.
d. Projector needs to have 3D Ready DLP Link or Nvidia 3D Vision function. This 3D function needs to
be open while playing active 3D.
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e. It is possible for user to see inverse image in R/L eyes’ image. User need to swap R/L signal
through projector internal function [3D Sync Invert] or active 3D.
12 [Anyplace] : Geometry Correction and Edge Blending
a、 [2x2 Corner]、[3x3 Curved] 、 [5x3 Curved] & [9x5 curved] are for manual geometry alignment
through OSD menu.
b、 [Edge Blend] provides all the functions for seamless high performance edge blended image.
c、 [Gwarp Pro] is to recall the setting from [Gwarp] PC tool and store in GeoBox.
12.1 Geometry adjustment range
a、 The adjustment range is calculated based on the percentage of output resolution in GeoBox
setting. Therefore, higher output resolution will have more adjustment pixels.
b、 Under XGA output resolution, the adjustment range are as follows:
--[2x2 Corner] adjustment in one side: Horizontal: 150 Pixels, Vertical: 100 pixels
--[3x3 curved] & [5x3 Curved] adjustment: Horizontal: 150 Pixels, Vertical: 100 pixels
--Maximum adjustment range in one side: Horizontal: 300 Pixels, Vertical: 200 pixels
--Maximum adjustment range in both side: Horizontal: 600 Pixels, Vertical: 400 pixels
c、 Under WXGA & 1920x1200 output resolutions, the adjustment range are as follows:
--[2x2 Corner] adjustment in one side: Horizontal: 300 Pixels, Vertical: 200 pixels
--[3x3 curved] & [5x3 Curved] adjustment: Horizontal: 300 Pixels, Vertical: 200 pixels
--Maximum adjustment range in one side: Horizontal: 600 Pixels, Vertical: 400 pixels
--Maximum adjustment range in both side: Horizontal: 1200 Pixels, Vertical: 800 pixels
d、 Gwarp PC tool has double adjustment range than manual adjustment.
12.2 Procedures for geometry alignment
a、 User can select the procedures based on different application and conditions. If the application
is for flat screen, then [2x2] alignment will be quicker and enough.
b、 If curve alignment is required or the flat screen is not flat enough, user can use [2x2] alignment
to draw the corner positions to expected locations. Then apply [3x3] alignment to align the
outlines of the image to the required positions following with [5x3] & [9x5] alignment to do
Under [Anyplace] menu, it provides below
functions:
Geometry alignment, including recall Gwarp
PC tool geometry alignment result.
Edge blending and image color correction.
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position fine-tune. User needs to strictly follow this procedure for edge blending to get uniform
display across entire screen.
c、 After finish [5x3] and [9x5] alignment, user can go back to [2x2] alignment to fine-tune the
corner positions.
d、 After [9x5 Curved] alignment, it still can’t meet expected result or manual adjustment range is
not enough, user needs to apply Gwarp PC Tool for the geometry alignment.
e、 [Gwarp] PC tool can apply [5x5], [9x9] and [17x17] grid pattern adjustment. It also has double
geometry adjustment range.
12.3 [Reset] in geometry alignment
a、 After finish [3x3], [5x3] & [9x5] alignments, user can go back to [2x2] alignment to fine-tune the
corner positions and it will not affect [3x3], [5x5] & [9x5] adjustment result.
b、 If user finishes [3x3] & [5x3] adjustment and go back to [3x3] menu, then it will reset the
adjustment in [5x5] adjustment and only keep [3x3] adjustment result.
c、 If user press [Reset] key in [3x3] adjustment, all the adjustment in [3x3] and [5x3] will be reset
and only [2x2] will be kept.
d、 [9x5] alignment will have the same behavior. If user goes back to low grid alignment, only low
grid alignments will be kept. [2x2] alignment is an exception that can co-exist with other
alignments. Once implement [2x2] alignment, the image corner position will be changed and all
other curve alignments will not be reset.
12.4 How to increase the accuracy of geometry alignment
User can see the grid location for geometry
alignment on the screen.
User can use remote controller or front
panel keypad to change grid location.
When adjusting each grid, the other grids
will maintain at the same location.
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a、 [9x5 Curved] will cut the horizontal image into 8 sections and the image in each section can be
independently adjusted. In different output resolutions, there will be different pixel number in
each section: XGA: 1024/8=128, WXGA: 1280/8=160, 1080p: 1920/8=240. Usually, it is enough
for most of the curved screen edge blending.
b、 If the overlapped area between two adjacent projectors has the same or multiple number as
above, then the manual geometry alignment for grid overlap will have less flexibility. User can
increase or decrease one or two grids (32 or 64 pixels) in overlap area to increase the flexibility
for accurate alignment between adjacent projectors.
c、 [9x5 Curved] alignment for two projector edge blending area as an example (in 1024 resolution):
If the overlap is 256 pixels (25%) in XGA resolution, total adjusting points are 15. User will have
less adjustment flexibility. If increasing two grids (64 pixels) to 320 overlap pixels, user can have
30 adjusting points to get more accurate geometry alignment. It can align the images from two
projectors on curved screen with good quality without Gwarp PC Tool.
d、 Below is the list for the accuracy of geometry adjustment in different overlap pixels:
GeoBox output resolution 1920*1080 1280*800 1024*768
Min. adjustment flexibility 240/480/720 320/480/640 256/384/512
Max. adjustment flexibility 352/608/832 224/256/384/416/544/576 192/320/448/576
i. Once the grid between two adjacent projectors can match together, it will make sure to get good
alignment. Horizontal lines between two adjacent projectors should be 100% match together. Vertical
lines are allowed to be separated (i.e. if user uses external grid pattern with 50x50 grid size, when user
applies 32x32 gird pattern, the grids will not overlap together but have the same gaps). However these
vertical lines should keep the same gaps between two adjacent projectors. User can adjust Video Wall
[Overlap] value to compensate the gap distance and get crisp image.
12.5 [Edge Blend]
a. Edge Blend is to merge the images from multiple projectors to become one seamless image.
b. The scaling factor between two adjacent images shall be the same. It means the image size under
the same resolution should be the same.
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c. Geometry alignment is required before edge blending:
To let the image has the same grid size (same scaling factor in both horizontal and vertical
directions)
To let the images overlap together in horizontal lines and vertical lines.
d. Sub-menu under [Edge Blend] menu
[Edge]: select the right edge and set overlap pixels
[Gamma]: select correct gamma for overlapped area and [Offset] compensation area to
eliminate banding effect.
[Offset]: to do black level uplift in non-overlapped area to compensate light leakage in projectors.
[Corner]: to do precise [Offset] location alignment.
[Shift]: shift the location in edge blend area. In some case, it may help color fine-tune. [Shift] can
also do [Edge Mask] for non-overlap edges with black background.
[Color]: to do discrete color adjustment for individual projector.
12.5.1 [Edge] selection and settings
a. [Edge] is to select the edge for edge blend and set overlapped pixel number.
b. User can execute edge blending at any edge.
c. Maximum edge blend pixels are 900. If over this number, please consider using image stack or
change aspect ratio in projector to shrink projection image. User can also reduce edge blending
area by geometry alignment in two vertical borders of edge blending area. Each projector shall
reduce the same pixels and maintain the same image size and scaling factor.
12.5.2 [Gamma]: Color correction in edge blending area
Color indicating lines will appear when
set edge blending pixels.
User only needs to adjust the color
indicating lines to match together (green
to green, red to red). There is no need to
calculate the overlapped pixels.
User needs to select correct edge for edge
blending.
For 3 projector edge blending as example:
To select [Left Edge] for RH projector
To select [Right Edge] for LH projector
To select both [Right Edge] & [Left
Edge] for center projector.
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a、 Different projectors may have different gamma curve. Different “Display mode” in the same
projector will also have different gamma curves. These gamma curves will affect the final video
result in edge blending area. The common issues are gray or color banding effect. These issues
are more significant in pure color or white back ground display.
b、 [Gamma] is to select the right gamma curve for edge blending area and [Offset] compensation
area.
c、 If color difference in the projectors, user need to adjust the color difference in the projectors to
reduce the possible banding effect in edge blending area due to color different among projectors.
d、 [Gamma] function is not functional when [Edge] setting is not executed.
Please note:
a、 User needs to press [Enter] key after selecting gamma value to see the result.
b、 Banding effect in edge blending area is related to projector color setting and gamma curve. The
projector should have the same gamma setting and [Display Mode].
c、 Please disable [Dynamic] color or [Brilliant] color function in the projectors. These function will
change gamma curve based on the content and affect final edge blending image quality.
Two sub-menu under [Gamma]:
[Transition]: To set edge blending area
gamma value. User can see image
color change in edge blending area
after press [Enter] key.
[Gain gamma]: To change gamma
curve shape in each projector. It can
further improve edge blending result,
especially while two adjacent projectors
has different gamma curve.
[Offset gamma]: To avoid black level
Offset adjustment to affect normal image
brightness. It can be served as a tool to
compensate the brightness difference in
overlapped area while two adjacent
projectors has some brightness
difference.
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12.5.3 [Offset]: Black level uplift
If edge blending is performed under dark environment, due to light leakage in projector optical
system, user will see gray area in overlapped area. This gray area can’t be fixed by signal
processing. The only way is to uplift the black level in non-overlapped area to reduce the black level
difference. [Offset] function is to balance black level in the display under dark environment.
Left picture is to show projector light leakage
under dark environment. In overlapped area,
the offset value is the sum from two projectors.
Low contrast ratio projector will be more
serious.
Left picture is to show banding effect in edge
blending area.
This issue is related to many factors:
Screen: gain value under 1.5 is recommended
Projector: should be the same model with the
same gamma and Display Mode settings.
Usually DLP projector will get better result.
Signal content: To avoid pure color or pure
white color content. Multimedia is the best.
Overlap range: too small overlap range will be
easier to see banding effect. 15%-25% with
more than 40 cm is recommended.
When adjusting black level, [Offset] value will be
applied to complete color range and reduce image
quality. [Offset gamma] adjustment can avoid this
issue and let [Offset] adjustment only affect black
level but not complete image. User can also use
this function to balance the brightness in edge
blending between two projectors.
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12.5.4 [Corner]: Adjust [Offset] compensation position
The starting point for this Offset is based on Edge blend borders. The projector light leakage area
is from the original projecting area before geometry alignment. Therefore Offset borders may not
be the same as light leakage area. User needs to use [Corner] menu to align the border lines of
Offset adjustment.
a、 After set [Offset] value in [Non-Transition] area, user can reduce the black level offset difference
but user will also see light bar near edge blending border.
b、 The maximum range for the corner adjustment is 300 pixels. When user installs the projectors,
please make sure the projector projecting area border to be as close as actual edge blending
border. The maximum difference should be under 300 pixels.
c、 Projector display imager, such as DMD, LCD and LCOS, will have some image borders due to
active display window is not at full range of the imager. In dark environment, viewer may see this
kind of black level uplift in image borders. It is outside active display area and can’t be corrected.
User can find [Non-transition] and
[Transition] offset adjustment menu。
Under each menu, user can adjust RGB
offset value in Transition and Non-
transition area to balance the color
difference.
Usually, user needs to raise RGB offset
value in Non-transition area (about 20-40
in DLP and 50-70 in LCD projector).
Once color difference is found, user needs
to adjust different RGB offset value on
Transition and Non-transition area to
eliminate the color difference.
User can adjust color in [Transition] area
but can’t reduce the level. It is light
leakage from projector.
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12.5.5 [Shift]: Edge blending area shift and Edge Mask
12.5.6 [Color]: Individual projector white balance and color correction
The [Color] adjustment can be applied to individual projector for white balance and color difference
correction through separate RGB Gain and Offset adjustment. It will be helpful to compensate projector
[Corner] can adjust the positions for black
level [Offset] borders through change the
end points of the borders.
User can adjust the top and bottom points
to get accurate positions.
Maximum adjustment range is 300 pixels.
If users still see some deviation in the
border line. It means the geometry
alignment in overlapped area is not
accurate enough. Please correct this issue
from geometry alignment.
[Shift] is to shift the whole edge blending
area to other location. The width of the edge
blending area will remain the same and
only
change the position. This is to test the effect
of banding effect and select the best
location of the edge blending.
Another function for [Shift] is to execute
[Edge Mask] on the edges of non-overlap
region.
The maximum edge mask range is 500
pixels in each edge.
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color difference, lamp brightness decay and lamp replacement issue. Through [Color] adjustment, it will
improve the video quality in edge blending.
In edge blending procedures, user needs to adjust the color from projector. If it is still not enough, user
can use [Color] function to do further adjustment. Please note that, any color adjustment will reduce the
color dynamic range. User needs to check the result with full range color image.
12.6 [Gwarp] PC tool
[Gwarp] PC tool is for more detailed geometry alignment, color uniformity adjustment and advanced edge
color fine-tune. User can combine [Gwarp] tool result with GeoBox hardware function to achieve edge
blending. At this stage, only geometry alignment result can be combined into G-700. Other functions will
be added in the future.
12.6.1 When [Gwarp] PC tool is necessary
G-700 hardware system can execute complete edge blending function without [Gwarp] PC tool. In below
conditions, Gwarp PC tool may be still necessary in edge blending operation.
a. The grid pattern for manual geometry alignment is up to 9*5 only. It can meet most of the application
requirements. However, if the screen is irregular curve or more precise alignment is required, Gwarp
PC tool is needed for further geometry alignment.
b. If more geometry adjustment range is required. Gwarp has double geometry alignment range.
c. In the long term, Gwarp will provide more function for the applications, such as auto geometry
alignment, auto edge blending and more intensive color correction.
Under [Color] menu, user can adjust
separate RGB [Gain] and [Offset] value to
change the color and white balance.
[Gain] is to change the color slope and
[Offset] is to add value in all level of
brightness (0-225).
When apply [Color] adjustment, it will affect
entire color performance in the projector.
Please check with different video contents
and make user no side effect can be found.
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12.6.2 System configuration
a. The package of Gwarp PC tool includes [Windows Driver] & [Gwarp.exe file]. Please unzip the file
and install USB driver.
b. One PC can control four G-700 output channels. If more projectors are used, user can use multi-PC
or finish four projector alignments first, then align the next four projectors.
c. G-700 is connected with PC through Micro USB interface.
d. Gwarp consists of one operation window and user can select different channel for the operation .
e. After open Gwarp, G-700 will be reset and controlled by Gwarp PC tool. If only some projectors need
Gwarp alignment, user can set the grid size with 32x32 pixels to match manual alignment grid size.
12.6.3 Gwarp operation
12.6.3.1 System connection
Connect G-700 and PC via USB type B cable. The interface is standard Windows HID and no special
driver is required.
Unzip Gwarp file.
Open [Gwarp.exe]. Click [Connect] to connect COM port. After connection, it will show output signal
resolution and [Close] icon. We propose to apply 1080p signal to G-700 for easy system setup.
There are one operation windows for and user can select from CH1-CH4 for individual control in each
channel.
User can select language or create his own language through change Language Strings in Gwarp2
software package.
Detailed Gwarp2 user guide is available in website for download.
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12.6.3.2 [Warp adjust]
Select [Pattern] color and Enable test pattern to show grid pattern on the screen. The pattern default
grid size is 32x32 pixels. Hot key for Pattern: [P]: Enable pattern, [CTRL + P]: Disable grid pattern.
Select [Warp adjust] and adjust Step (default is 8 pixels) for each adjustment.
BLUE direction keys are for control point selection and RED direction keys are for value adjustment.
User can use hot keyson Keyboard for convenient operations:
a. [Arrow] keys: adjust control point at 4 directions.
b. [CTRL + Arrow] keys: select control point, same function as BLUE key in Gwapr2.
c. [Shift + Arrow] keys: adjust control point at 1 pixel step (for fine tune)
d. [M]: adjusting mode selection from [2x2] [3x3] [5x3] [5x5]…
[2x2] alignment is for quick image corner alignment. Usually, user needs to apply [2x2] geometry
alignment first to draw image 4 corners to the required positions, then go to curved alignment ( [3x3]
or [5x5]...) for further geometry alignment.
For most of the applications, we propose to follow [2x2][3x3][5x5][9x9] sequence for geometry
alignment. Please note that if you execute [9x9] or [17x17] and back to [5x5], it will only keep [5x5]
data and reset all the rest. However, user can go back to [2x2] alignment and will not affect curved
alignment result.
For edge blending, please align all the grids in edge blending area stacked together to ensure clear
image can be obtained.
After finish geometry alignment, user needs to execute [Video wall] setting and [Edge Blend] in
Gwarp2 or GeoBox hardware system to complete the whole edge blending process.
12.6.3.3 [Video Wall]
Video wall settings include [Zoom], [Pan] & [Overlap]
All the function is the same as that in GeoBox OSD operation.
Show output resolution
after connection
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Once set value in Video Wall, the result will be applied to the screen immediately. User can save it
into GeoBox through Profile Index.
12.6.3.4 [Edge Blend]
It is to set the right location and pixel number for edge blending based on geometry alignment.
The result of Edge Blend will applied to the screen immediately. User can save the result into
GeoBox Profile Index.
All the functions under [Edge Blend] menu can be implemented through GeoBox hardware system
independently.
12.6.3.5 Color [Uniformity] correction
User can set different gain and offset value in RGB separately to do uniformity adjustment.
The minimum area for color uniformity adjustment is 64x64 pixels.
User can use this function to compensate some color difference in overlapped area while executing
edge blending.
The result can be saved in UserMap together with geometry alignment result at the same time.
12.6.3.6 [Save File] & [Save to Box]
After finish Gwarp operation, user can save the result in two locations--PC and GeoBox.
Click [Save file] will save the file into PC and need to use press [Load file] to load back settings.
Click the # under [Save to Gwarp Pro] will save Gwarp result into G-700. User can create up to 10
different Gwarp results into GeoBox. User needs to save the final result in each channel separately.
After save the file, please turn off [Pattern] in Gwarp2 (Hotkey on keyboard: [CTRL + P]) so that user
can see the system OSD through keypad or remote controller.
Next step is to activate GeoBox OSD to load Gwarp result under [Anyplace][Gwarp] menu. Select
the same UserMap # as saved in Gwarp2 to load the result into GeoBox.
Please combine with [Video Wall] and [Edge Blend] functions through OSD to complete edge
blending processes. User can save the final result into [Profile] menu and recall it at any time.
Maximum 5 profiles can be saved.
Once select [Gwarp2] geometry alignment result, all the geometry alignment result will be replaced.
12.7 Example for 3 projector edge blending setup
Edge Blend can enlarge the display screen and change the aspect ratio using multiple projectors.
Three elements are required for edge blending: One is to do geometry alignment and let all images
from the projectors have the same size. Secondly, to use Video Wall function to split the input signal,
crop the right portion and assign to each projector. The third is to do edge blending to become
seamless image and do color fine-tune. Below is example of the procedures for three projector edge
blending.
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a、 System connection: One G-703 is required for three projector edge blending. Please connect the
signal source to CH-1 HDMI input port, connect CH-1 HDMI loop out port to CH-2 HDMI input port and
connect CH-2 HDMI loop port to CH-3 HDMI input port.
b、 Excel Spread Sheet is available to for user to determine the projectors (resolution, quantity, lumens
and throw ratio) and information for system installation (single projector image size, overlap area size,
installation distance and optimized content resolution…). Based on this information, user can make
detailed project plan for the complete system.
c、 Placement of the Projectors:
Select projectors with higher contrast ratio (above 3000:1 is recommended) and set projectors at
reasonable distance from the screen with 200-500 overlap pixels (or 30cm-50cm overlap width)
between two projectors.
Use removable tape as temporary marks to indicate the image edges for each projector and
screen center line (based on the data from Excel Spread Sheet). Each projector should have the
same display size. Otherwise the grid size in each projector will be different and the blending
image will become blurred.
To display each projector a little over the display range for further geometry adjustment.
Please try to install the projector with less keystone image.
To set parallel vertical overlap edges between 2 adjacent projectors and let the positions of the
lines close to pre-marked positions will get better video quality.
d、 Projector setting:
Reset projector to default setting.
To disable “Auto Alignment” function if user wants to use VGA analog input signal to avoid image
shift during projector switching ON/OFF process.
Disable Auto Keystone function.
Select a Display Mode with 2.2 gamma curve will reduce the color difference in overlap area. User
needs to test with different Display Mode setting based at final color fine-tune stage.
Use projector internal color adjusting function to adjustment the color variation among projectors
before implement edge blending.
e、 G-700 Setting
Reset GeoBox to default setting.
Select output resolution to be the same as projector native display resolution.
Set [OSD Time Out] to [OFF] to maintain the display of OSD and Grid Test Pattern during the
installation period (default is in [Off] position).
To do [Color] adjustment for each projector if necessary.
f、 Geometry Adjustment:
Please familiar with OSD operation from front panel and remote controller, including activate grid
pattern, channel selection, shortcut keys for [Warp], [Video Wall], [Edge Blend] and [Info].
[OSD Time Out] is default to ”0”. It will ensure the grid pattern will not be turned off automatically.
If multiple units of GeoBox are used and IR receivers are put together, please set [Box ID] for
each G-700 so that user can control each G-700 separately.
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Select channel and use [Pattern] hot key to show grid patterns in all projectors with different color
for easy alignment.
Apply [2X2 Corner] geometry alignment and draw the corners to expected locations. Please make
sure the image size in all projectors should be similar. Otherwise, user can’t align the grid patterns
on the overlapped area correctly. You may see some image is outside or inside the screen
borders. It doesn’t matter. You can use Curve alignment to correct it.
If user doesn’t use Excel file to calculate the image size for each projector, please try to set the
same image projection height prior to geometry adjustment. In this case, the image width for all
projectors will be also similar. The next step is to do manual projector position adjustment with
reasonable overlap pixels.
If user finds the grid size between adjacent projectors is different. It means the projection image
sizes between two projectors are different. User needs to do further adjustment by [2x2 Corner].
In curved screen the overlap grid size between two adjacent projectors will be different. User
needs to adjust the image by [2x2 corner] adjustment to let two projectors have the same grid
number in overlapped area. Further alignment can be done by curve adjustment.
Apply [3x3 Curved] geometry alignment to draw the edge center points and center line of the
image to meet edges and center line of screen.
Please use [5X3 Curved] to do further alignment. If the grids in overlap area can’t match together,
please align the top edge first to let the grids from two projectors align together, then to alignment
the rest points of the vertical lines following the same vertical locations.
Then use [9x5 Curved] for image fine-tune.
All horizontal lines should be matched together and two vertical border lines in edge blending
region should be accurately stacked. These two lines will affect the positions for black level uplift
compensation.
After the above processes, if the grid pattern in edge blending area still can’t stack together, user
can try reduce one or two overlap grids. It will increase the accuracy in geometry alignment.
[Gwarp] PC tool should be applied if OSD alignment can’t meet final requirement. Before using
Gwarp tool, please store manual settings into [Profile] temporarily.
g、 Video Wall setting (Image split and allocation)
After geometry adjustment, video wall setting is required. The functions of video wall are as follows:
Split the image for different projectors (Zoom)
Determine the location of the image for each projector. (Pan)
To set proper overlap region in the edge between projectors (Overlap)
Example for 3x1 horizontal edge blending Video Wall setting
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Before Overlap adjustment: Double image will be showed in all overlap regions. User can apply
[Overlap] value to eliminate double image at the overlap region.
An [Excel Spread Sheet] can be provided for the calculation of the [Overlap] setting value in
different setup, including different [Overlap] size among different projectors.
For dual projector edge blending, user can increase [Overlap] value in each channel at the same
time. Then user will see the overlapped images to come closer till two image 100% match
together.
For dual projector edge blending, user can use below equation to calculate overlap pixel.
Assumption: Input signal:1080p, G-700 output to projector: XGA, Overlap 224 pixels (7 grids)
Overlap value= 1920/(1024x2-224)x(224/2)=118 pixels.
If user still sees some blurred image in edge blending area, please increase or decrease [Overlap]
value in [Video Wall] setting to improve video quality. If the adjusting value is more than “1”,
please divide this value for adjacent projectors. For example, if the value should be “2” in center
projector LH edge, then please add “1” in RH edge of the 1st projector and “1” in 2nd projector LH
edge.
h、 Edge Blending setting:
[Zoom] setting
Select [Horizontal Zoom] [3] to split the
image for 3 projectors horizontal edge
blending.
Select [Vertical Zoom] [1] because only
one projector in vertical position.
[Pan] setting
Select H=1, V=1 for LH projector
Select H=3, V=1 for RH projector.
Select H=2, V=1 for center projector
[Overlap] setting:
Please apply edge blend value based on
[Excel Spread Sheet]
Select [Right Edge] for LH projector.
Select [Left Edge] for RH projector.
Select [Right Edge] & [Left Edge] for center
projector
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Select correct Edge for the edge blending:
LH projector: RH edge, Center projector: RH & LH edge, RH projector: LH edge
RED and GREEN color indicating lines will appear when increase edge blending pixels.
User needs to adjust the color indicating lines to match together (green to green, red to red) and
will see the final result.
i、 Color fine tune under [Edge Blend] menu:
Select different [Gamma] values and check video performance.
Set right [Offset] value in Non-Transition area to compensate black level difference.
Apply [Corner].function to fine tune the location for black level [Offset] position.
j、 Black level uplift:
If the ambient light is dark, audience will see grey region in Edge Blending area. It is due to light
leakage from projector optical system. Low contrast ratio projector will be more serious. Please
apply [Offset] menu to uplift the color in non-transition area and [Corner] menu to do accurate
position alignment.
Under [Offset] menu, user can try [Gain] and [Offset] color compensation to let non-transition and
edge blending area to have the same color. After this step, user will see grey bars near the
borders of edge blending area. User can use [Corner] to eliminate these grey bars.
k、 Image quality fine tuning
The final performance will be a combination of many factors—projector characteristics, projector
setting, screen, ambient light and GeoBox setting.
Banding in overlap area under dark environment is caused by light leakage in the projector optic
system. It is not possible to be fixed by signal manipulation. The only way is to raise the black
level in none transition area through [Offset] menu.
GeoBox edge blending default setting is for projector with 2.2 gamma settings. To select projector
display mode near 2.2 gamma setting will get the best result.
The projector may retain light leakage near the border of the imager. It is not possible to be fixed.
The factors affect final image quality
i. GeoBox settings:
Edge Blending settings: Gamma, gain, Offset, Color
Image Properties: To select Preset Mode to Neutral, sRGB or Bluish
Individual projector color adjustment [Color] function under [Edge Blend] menu.
ii. Projector:
To adjust image position of the projector and reduce keystone angle.
Increase Overlap region & reduce off axis angle
To change Display Mode, usually Standard, sRGB/Neutral will get better result.
Try different color settings. If necessary to use 3D color adjustment in the projector.
iii. Screen: To use lower gain value screen.
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13 OSD Miscellaneous Functions—[Options]
13.1 System Information: [Information]
13.2 OSD Language: [Language]
13.3 [Reset]
a. There are three RESET methods:
i、 RESET through OSD operation
ii、 RESET through Reset hole at the back panel
iii、 RESET through Factory Setting mode.
b. Reset from Factory setting mode will reset all settings
to factory default settings including input/output and
Profile settings.
Activate [Options] Menu by Front Panel keypad
or Remote Controller.
In [Information] menu, it will show the
information in GeoBox, such as output mode,
input mode, Model name and Microcode
version.
In [Language] menu, three languages can be
selected as OSD Language:
English, Simplified Chinese and Traditional
Chinese
Reset Hole on back panel
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c. Reset from OSD and Reset Hole will still keep some custom settings in NVRam, such as
Input/Output resolution and Index setting inside Profile.
[Exit] menu will exit from [Reset] menu and the system settings will not be changed.
[Reset All] menu will reset GeoBox to its factory default settings but the setting stored in [Profile] &
[Gwarp] will be kept the same without change.
[Video Wall] menu will reset the settings in Video Wall function to its factory default settings but all
other settings will remain the same without change.
[Anyplace] menu will reset the settings in [Anyplace] function to its factory default settings but all
other settings will remain the same without change.
13.4 [Accessibility]
13.4.1 [Button Repeat Rate]
OSD [Button Repeat Rate]:
In [Reset] menu, three types of Reset can be
done: Reset All, reset Video Wall and reset
[Anyplace] function.
Under [Accessibility] menu, there are four
sub-menu:
OSD [Button Repeat
Rate], OSD [Menu Time
out]、[Logo Time Out] and [standby time out]
OSD [Button Repeat Rate]:
It controls the speed of the response of the
OSD button while user presses OSD button
continuously.
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[Off]: OSD only responds once when every time OSD key is pressed.
[Default]: OSD will respond slowly at the beginning but will increase the speed of the response
when OSD key is pressed continuously.
[Slow]: OSD behavior is similar to [Default] but the response speed will be slower than Default.
13.4.2 [Menu Time Out]
When [Off] is selected, the OSD menu will remain in the screen until user activates other OSD
function.
Internal Grid Pattern will be also controlled by the time setting in [Menu Time Out] menu. For
[Anyplace] geometry adjustment, we recommend user to set OSD [Menu Time Out] to [Off] to
maintain continuously display of the pattern and OSD on the screen.
13.4.3 [Logo Time Out]
13.4.4 [Standby Time Out]—system power ON/OFF control by input signal
This function is to turn off output signal complete through signal source.
OSD [Menu Time Out]
OSD menu will disappear from the screen
based on time setting.
The default time is 30 seconds.
To set the time to show Splash screen.
If zero is selected, then the splash screen
will not be showed during system booting
up period.
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13.5 [Setting]
13.5.1 Audio [Mute]
13.5.2 Frame Lock and Smooth Switching Mode
[Frame Lock] will ensure the input and output frame rate synchronize together. When the application uses
multiple GeoBox, the signal in each GeoBox will also have better synchronization without frame tear.
However, when the input timing change or video source have been changed, the output signal will be
broken for short time temporarily and it will cause display devices to re-search input source and no video
image will be displayed during that time. If user wants to eliminate this kind of waiting time, user can
[Disable] frame lock to maintain continuous output in GeoBox while input source or timing changes. This
kind of Smooth Switching Mode is only available when the signal change is in same vertical frequency, such
as within NTSC or Pal. If the input timing change is between NTSC or PAL, there will be still temporary
There are 4 items under [Settings] menu:
[Mute] Audi mute or enable
[Box ID]: Set control ID
[Profile]: Save profile settings
[Network]: set RS232 and network control
Audio Mute:
[Mute Off] will enable audio output.
[Mute On] will disable audio output.
[Mute] hot key in remote controller is
available
If it is set to “60”, G-700 will automatically
turn off output signal when no input signal is
detected for 60 seconds.
If the projector can also automatically shut
down when no input signal is detected.
User only needs to control signal source to
turn ON/OFF the system.
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signal break and the display devices will re-synchronize the input signal again. When Frame Lock is
[Disable], GeoBox will shorten the time for mode change. The system will also conduct HDCP verification.
This verification process will also take some time. Therefore the time for mode change may be different in
different cases.
13.5.3 [Box ID]
Press number keys in Remote Controller for the control of multiple GeoBox:
850: simultaneous control for all GeoBox or reset Menu Lock.
851: control GeoBox ID No. 1
853: control GeoBox ID No. 3
A flashing LED indicator is to show the GeoBox that has been locked without action.
Note: “85+ID” function is only functional when all GeoBox IR receivers are put together. When user
presses “851”, then all the GeoBox except ID No. 1 will be locked with flashing LED on the front
panel. User can only control ID No. 1 GeoBox in this case. We recommend to install IR receivers in
different locations for easy remote control access, then “85+ID” setting is not necessary.
13.5.4 [Profile Setting]
User can save and load [Profile] through OSD. Each channel should save Profile individually.
When user wants to load the Profile, user can use [All] key to load Profile from all channels at the
same time.
[Box ID] is the identification No of each
GeoBox
GeoBox ID # is from 1-99. If control
through remote control, the maximum ID
# is up to 9 only.
After set Box ID, user can control
GeoBox individually via IR Remote
controller, RS232 & Ethernet
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User can use profile setting function to show different display styles in the applications. If you have 3x1
display setup,
1. User can implement:
Switching among different input ports.
3 projector edge blending as one seamless screen (all-in-one)
Two projector edge blended and one independent display (2+1)
All projector display different content (1+1+1)
2. User can switch among different display styles (profiles) within seconds through IR remote controller,
RS232 or Ethernet
13.5.5 [Network]
13.5.5.1 [RS232] Command
[Profile] is to save and load all GeoBox
settings.
When reset the system or FW update, the
settings saved in [Profile] will remain the
same without change.
If the FW version had been changes, it
may reset Profile as well.
Five Indexes can be chosen to save GeoBox
settings in each processing channel and can
be reloaded by IR remote controller, RS232 or
Ethernet through [Load] menu under [Profile]
Two choices under [Network] menu:
RS232 & Ethernet
User can only select one control method
between RS232 and Ethernet.
If no addition Ethernet module in GeoBox,
only RS232 can be selected.
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RS232 interface is designed with DB-9 connector. The UART Protocol between GeoBox and a
Host computer can be provided. The protocol can be implemented via RS-232, USB, Ethernet
or other forthcoming communication methods.
Detailed RS-232 protocol can be provided as needed.
13.5.5.2 RS232 setting
a、 Serial port setup
b、 Terminal setup
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13.5.5.3 Example of low cost RS232 controller
13.5.5.4 Ethernet] control
Ethernet control: GeoBox is design with optional [Ethernet] control interface through RJ45
connector. User can controller GeoBox through Ethernet or WiFi via PC or mobile devices, such as
Smart Phone, iPhone and iPad. A webpage with keypad icons (virtual keypad) will be showed in
control devices for user to control all the OSD function of GeoBox.
Additional built-in Ethernet Channel is required.
User can use external Ethernet to RS232 conversion box to control GeoBox through Ethernet.
Below are the procedures to use WiFi connection to control OSD operation or implement RS232
commands.
Use Ethernet cable to connect GeoBox and WiFi router through LAN port.
Connect WiFi between PC or smart phone and WiFi Router.
Activate Ethernet OSD: [Options] [Setting] [Ethernet]
User can save up to 5 settings into [Profile].
User can connect this RS232 controller with each
G-700 through RS232 cable in parallel.
Click Profile button in RS232 controller to power
on/off the system or select display Profile.
If separate RS232 control is required, user needs to
set different [Box ID] for each G-700 and put ID # into
RS232 command.
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Select [HDCP IP], then user should see [IP Address]. If not, please click [Renew] in OSD menu.
User should see IP address. If still fails, please unplug WiFi Router or turn Off/On GeoBox
again to get connection.
In [Ethernet] menu, there are two items:
DHCP IP & Static IP
If user selects DHCP IP, user should see IP
Address similar to left diagram.
DHCP IP is assigned by Ethernet router or
Ethernet switch hub.
User can also select [Static IP]. It will show
static IP address
. User needs to configure the
IP address with the same network domain.
Otherwise, user can’t communicate with
GeoBox.
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User can use < > OSD direction keys to access the position for the modification and ˄ ˅ OSD
direction keys to change the value in Static IP settings.
After see the IP address, user can key-in IP address directly in PC or smart phone to connect with
GeoBox.
If Ethernet Router supports PnP protocol, user can see GeoBox device in the network. After
connection, it will show below content in the webpage. It includes virtual keys for the operation of
the OSD menu.
If user has Ethernet connection problem, please power ON/OFF GeoBox or WiFi router again.
GeoBox
13.5.6 [EDID] setting
13.1.1 [EDID] setting
a、 Selective EDID setting is added into GeoBox. The purpose are as follows:
GeoBox can support big range of input signal timing—from XGA up to 4k/2k. In order to get the
best video performance, user needs to select different input signal resolution.
Different PC display cards have different setting and behavier. Many users may not be able to do
the right settings
Static IP can be programmed through OSD
keypad or remote controller to have the
same domain name in network.
User can connect the system through IP
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High end media player or server can support big range of outputs—from 720p to 4k/2k. If no EDID
selection function, only one default EDID can be selected by media player. The system may not
show the best video quality.
Different display modes may show different final image aspect ratio. User can ultilize different
EDID setting to change input signal timing and get different output aspect ratio.
b、 In very rare cases, some PC may not follow the EDID settings from G-105 and show different result.
If it happens, please open PC setting window and select desired output resolution from PC.
c、 If user selects GeoBox as display device, user can choose PC output resolution up to the maximum
resolution set by EDID in GeoBox.
d、 If user wants to create custom output resolution in PC, user needs to select GeoBox as display
device for further settings. Please select Reduced Blanking timing in high resolution output to reduce
the output clock for easy high speed data connection.
Activate EDID setting menu:
[Options] [Setting] [EDID]
Use IR remote controller to select desired
EDID.
After select EDID, signal source will
auto-change the output timing setting.
Press [INFO] key to check if the input and
output timing are set correctly.
User can also select EDID manually. The
range will be from 1024x768 to 3840x2160.
Based on VESA standard Horizontal
resolution is in a step o
f 8 pixels and vertical
resolution is in 2 pixels. After creating the
EDID, PC or laptop may still can’t output
required timings due to hardware limitation
or driver issue. In some case, user also
needs to do manual selection of the output
resolution in signal source.
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e、 After user creates custom output resolution in PC, use needs to go back to Resolution Selection
Window in PC to select the desired output timing.
Note:
d. Please open GeoBox 2-3 seconds before open signal source so that signal source can detect the
EDID setting in GeoBox and sends out the right timing.
e. After finish FW update, please select a different EDID resolution in EDID selection menu. This action
will update EDID from new FW into GeoBox.
14 Screen Selection
a. Gain value less than 1.5 will be recommended for Edge Blending application. Higher gain value will be
more sensitive to color difference among different projectors. In short throw projector edge blending,
viewer may see different edge blending result while viewing at different angles.
b. Motorized screen position may be shifted from time to time. It will affect the image stacking in edge
blending area and may cause blurred image. Fixed screen is recommended.
15 Projector Selection and settings
a. The projectors for the edge blending should be the same model and the same production lot. If they
are not the same models, it may create some difficulty and performance issue.
b. Usually, higher contrast ratio in the projector will have better black level performance. The projector
with contrast ration more than 3000:1 is recommended for multiple projector edge blending. In a dark
environment, video projector with 10,000:1 contrast ration or higher will be better. This contrast ratio
should be native contrast ratio but not dynamic contrast ratio.
c. Most of DLP projector will provide a function for 3D color adjustment to fine-tune R, G, B, Y, C, M six
colors. It will help the color fine tune in multiple images from different projectors.
d. All the projectors shall have the same setting—including optical zoom ratio, color temperature, color
characteristics, lamp setting, display mode...etc.
e. Most projectors have different display mode for different applications, such as Presentation, Video,
sRGB and User mode. Different display modes have different gamma settings and affect the video
quality in overlap region. User needs to try with different display modes to get optimized image
f. Ultra short throw ratio projector may cause banding issue while watching at different view angle.
g. The mechanical stability in optical system will be important. It should be rigid with less thermal drift. A
projector with big ZOOM and lens shift will be more convenient for the installation
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16 Specifications
G-700
Independent Video
input/output ports in
each channel,
maximum up to 4
channels in one box
1. Input in each channel
a、 1x DualLink DVI-I
b、 1x HDMI 1.4 input
c、 1x DisplayPort 1.1a input
d、 All digital input ports support 3840x2160 @30Hz, 2560x1600 and 3840x1080
at 60Hz
2. Output in each channel
a、 1x HDMI outputs for RH/LH channel up to 1920x1200 @60Hz
b、 1x HDMI loop out port from HDMI input for daisy chain connection up to
3840x2160 @30Hz
c、 Compliant with HDCP 1.3 High-bandwidth Digital Content Protection
Image geometry
correction, warp and
Edge Blending
(Anyplace function)
1. With full functions for 4 corner alignment, vertical and horizontal keystone
correction, Pincushion & Barrel adjustment, image warp and image 180〫 flip.
2. Each unit controls 4 projectors and can be expanded with multiple G-700 to
support unlimited number of projectors.
3. Full function front panel keypads and IR remote controller. Manual geometry
alignment up to 9*5 grid patterns.
4. Gwarp PC Tool is available for warp and geometry alignment up to 17x17 grid
pattern. After finishing geometry alignment, the parameters can be stored inside
G-700 and no more PC is needed.
5. Execute 4 directions edge blending. No limitation in the number of edge blending.
6. Provide complete function for edge blending fine-tune and color correction.
7. Precise black level uplift to compensate light leakage in the projector.
8. White balance and grey level adjustment for each projector.
9. One PC tool can control 4 processing channels simultaneously.
10. Able to perform flat & curved screen seamless edge blending, including irregular
curved screen and 360 degrees curved screen.
Video Wall
1. Magnify, scroll & pan through all inputs.
2. Image split, cropping and assign display location.
3. Pixel based overlap adjustment in all edges, up to 15x15 matrix displays.
4. Overlap pixel adjustments up to 900 pixels for image position shift, bezel
compensation and creating overlap region for edge blending.
5. Connect with 4k/2k input signal and split the image for display devices without
additional PC, image splitter or other devices.
6. Serve as video wall controller for irregular video wall display up to 15x15 matrix
display from single signal input source.
High end video
processing and
de-interlace
1. 3D motion adaptive de-interlace for main and PIP images
2. Low angle edge smooth algorithm (similar to Faroudja® DCDi)
3. Automatic 3:2 and 2:2 pull-down film mode detection and recovery
4. True 10-bit data processing
3D stereoscopic
display
1. Auto decode 3D signals for passive 3D display, including signal source from Blue
Ray, STB, game console, media player and PC.
2.
Auto decode Stereoscopic Player/ Nvidia 3D Vision 1080p @120Hz 3D format and
Blue Ray 1080p 24Hz 3D signal into 720p/XGA 120Hz signal for active 3D display.
3. Support standard HDMI 1.4a 3D format, including 1080p/24Hz full HD, Side by
Side, Top-Bottom & Line interleaved.
4. Support 3840x1080 Full HD Side by side 3D format and SONY 1080i/60Hz frame
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packed 3D.
5. Zero latency in RH/LH eye image to get the most comfortable 3D.
6. Precise geometry stacking alignment and allow 2D/3D in the same setup with
clear image and OSD menu.
7.
3Ddisplay can be on flat and curved screen. It can be expanded by more projector
image stacking or edge blending.
Aspect ratio
1. Full screen or maintain input signal original aspect ratio.
2. Switch between 2.35:1 & 16:9 aspect ratio
3. Other aspect ratio can be changed by EDID setting and through Video Wall and
Geometry adjustment function.
System control and
convenient features
for system integrators
1. Reliable and durable design for long term industrial and commercial applications.
2. Able to use low cost projector, no lens shift, warping or edge blend function are
required
3. Full functional keypads & IR control.
4. ID # for each GeoBox. Convenient for system installation and control through IR,
RS232 and Ethernet.
5. Gwarp PC tool is available to control G-700 through USB.
6. Up to 5 profile settings for flexible display modes memory and recall.
7. Integrated with IR extender (up to 20 meters), RS-232 and optional Ethernet
control.
8. Automatic power ON/OFF through input signal control.
Power supply
1. External DC 12V/5A power supply
2. Auto low power standby mode
Weight
2.8 Kg (GeoBox body only)
Dimensions
440mmL x 190mmD x 60mmH
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17 Revision History
Revision
Date Originator Comments
V 1.01 2016-10-17 Steve Wang First revision
V 1.02 2016-11-15 Steve Wang Content modified
V 1.03 2017-01-17 Steve Wang Add [All] function and new Gwarp2
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