Planar EL640.480-AA1 User's Guide
EL640.480-AA1 640 (x2) x 480 Pixel
RGY Multicolour Display
USER’S MANUAL
www.planar.com
Revision Control
Date Description
November 1997 Document number PI02247 Ver 8
June 2004 Document number 020-0357-00A
Contents
Product Profile ............................................................................................................................................................3
EL Technology............................................................................................................................................................. 3
Electrical Characteristics.......................................................................................................................................... 4
Connector Layout .................................................................................................................................................4
Signal and Power Inputs..................................................................................................................................... 5
Power and control Inputs................................................................................................................................... 5
Connectors ..............................................................................................................................................................6
Connector Description........................................................................................................................................ 6
Additional Grounding for Low EMI................................................................................................................. 6
Control Basics .........................................................................................................................................................6
Input Specifications.............................................................................................................................................. 7
Display Features......................................................................................................................................................... 7
Video Data ............................................................................................................................................................... 7
Colour Mapping..................................................................................................................................................... 8
Display Enable........................................................................................................................................................ 8
Self Test..................................................................................................................................................................... 8
Luminance Control............................................................................................................................................... 8
Display Operation Modes...................................................................................................................................9
Supported VGA Modes......................................................................................................................................10
Installation and Handling......................................................................................................................................10
Mounting ...............................................................................................................................................................10
Handling.................................................................................................................................................................10
Cleaning .................................................................................................................................................................10
Cable Length.........................................................................................................................................................11
Avoiding Burn-in .................................................................................................................................................11
Timing Characteristics.......................................................................................................................................12
Setup and Hold Timing.....................................................................................................................................15
Operational Specifications ...................................................................................................................................16
Environmental......................................................................................................................................................16
Reliability................................................................................................................................................................16
Safety.......................................................................................................................................................................16
EMC ..........................................................................................................................................................................16
Optical.....................................................................................................................................................................17
Optional Filter .................................................................................................................................................
17
Mechanical Characteristics...................................................................................................................................18
Description of Warranty ........................................................................................................................................20
Easy to Use .................................................................................................................................................................20
Support and Service................................................................................................................................................21
Ordering Information.............................................................................................................................................21
Figures
Figure 1. EL Technology...................................................................................................................................... 3
Figure 2. Connector Layout............................................................................................................................... 4
Figure 3. VGA Mode (640 x 400, 720 x 400 and 640 x 480 subsets) ..................................................12
Figure 4. Norrmal Mode....................................................................................................................................13
Figure 5. TFT LCD Mode Timing.....................................................................................................................14
Figure 6. Normal and VGA Mode...................................................................................................................15
Figure 7. TFT Mode .............................................................................................................................................15
Figure 8. Viewing Area Characteristics........................................................................................................19
Figure 9. Front and Side Views.......................................................................................................................19
Tables
Table 1. Signal and Power Inputs ....................................................................................................................5
Table 2. Power and Control Inputs .................................................................................................................5
Table 3. Connectors.............................................................................................................................................. 6
Table 4. Input Specifications .............................................................................................................................7
Table 5. Colour Mapping ....................................................................................................................................8
Table 6. Supported VGA Modes.....................................................................................................................10
Table 7. VGA Mode (640 x 400, 720 x 400 and 640 x 480 subsets) ....................................................12
Table 8. Norrmal Mode......................................................................................................................................13
Table 9. TFT LCD Mode Timing.......................................................................................................................14
Table 10. Environmental Characteristics ....................................................................................................16
Table 11. Optical Characteristics....................................................................................................................17
Table 12. Display External Dimensions........................................................................................................18
Table 13. Display Viewing Area Characteristics........................................................................................18
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Product Profile
The EL640.480-AA1 display is a VGA compatible high-resolution
electroluminescent (TFEL) display. It delivers eight different hues of red, green
and yellow with excellent image clarity. The EL640.480-AA1 is designed to
function in extreme environments and is totally service free. Its image contrast
and colours remain constant over a wide viewing angle and without the need
for an additional polarizing filter under most lighting conditions.
The EL640.480-AA1 features a 640 (x 2) column by 480 row matrix with each
pixel composed of a red and green subpixel. Each subpixel has three intensity
levels. The digital flat panel interface is designed to match the needs of most
systems.
For operation the EL640.480-AA1 display requires +5 Vdc and +12 Vdc (Vcc1,
Vcc2) power and seven basic input signals:
1. Four bit serial Video Data (D0…D3)
2. Video Clock, pixel clock, or dot clock (VCLK)
3. Horizontal Sync (HS) or Blanking (_BLANK)
4. Vertical Sync (VS)
EL Technology
The display consists of an electroluminescent glass panel, a mounted circuit
board with driving electronics and an integrated DC/DC converter.
Figure 1. EL Technology.
The multicolour EL display panel is based on a new innovative structure, in
which red, green and yellow colours are obtained using a patterned colour
filter in front of a monochrome light emitting thin-film EL device. The structure
is fully solid-state, with the colour filter laminated on top of the display. The
light is emitted in a luminescent layer sandwiched between two transparent
EL640.480-AA1 Operations Manual (020-0357-00A)
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dielectric layers and a matrix of row and column electrodes. The display glass
and the electronic circuit assembly board (ECA) is mounted to a metal support
by elastic spacers. The row electrodes are connected to the ECA with soldered
lead frames. Column electrodes are connected via column driver TAB tapes.
The result is a display with excellent visual characteristics in a compact, reliable
and rugged structure.
In the EL640.480-AA1, the 640 (x 2) column and 480 row electrodes are
arranged in a X-Y formation with the intersecting areas performing as pixels.
Voltages applied to both the correct row and column electrodes to cause a lit
sub-pixel. Operating voltages required are provided by the integrated DC/DC
converter.
Electrical Characteristics
Connector Layout
Fig 2. Input Connectors and Their Location.
EL640.480-AA1 Operations Manual (020-0357-00A)
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Signal and Power Inputs
Table 1. J1 (Video Interface Connector).
Pin No Signal Symbol Description
1, 3, 5, 15
17, 19, 21 Ground
2 Video data (LSB) D0 Video Data
4 Video data D1 Video Data
6 Video data D2 Video Data
8 Video data
(MSB)
18 Video Clock VCLK Synchronizing signal for data lines, HS, VS and
20 Blanking _BLANK Frames data in VGA and TFT modes. For Normal
22 Horizontal Sync HS Frames data in Normal mode
24 Vertical Sync VS Controls the vertical position of the picture
28 Enable ENABLE Display operation is enabled when high or left
29 Interface mode VMODE If high or left disconnected, Normal or VGA
10, 12, 14 Reserved These pins are reserved for future use
16, 33, 34 Reserved These pins are reserved for future use
7, 9, 11, 13 Not used N/C Not connected
23, 25, 26,
27
30, 31, 32 Not used N/C Not connected
Not used N/C Not connected
GND
D3 Video Data
Signal return
_BLANK. See setup and hold timings for the
various modes on page 15.
mode should be high or left disconnected.
disconnected
mode is selected. If low, TFT LCD mode is
selected.
Power and Control Inputs
Table 2. Power and Control Inputs
Pin Signal Symbol Description
J2 (Power input connector)
1 Voltage Vcc2 Supply voltage (+12 Vdc) converted to required internal
2 Ground GND Power return
3 Ground GND Power return (same as pin 2)
4 Voltage Vcc1 Supply voltage (+5 Vdc)
J3 (Luminance control input)
1 Luminance
control
2 Ground GND Signal return
EL640.480-AA1 Operations Manual (020-0357-00A)
LUM
voltages
The inputs for an external 50 kΩ log potentiometer or a
0…5 V DC voltage to adjust the luminance of the display. If
left disconnected, the luminance is at the max level.
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Connectors
Table 3. Connectors.
J1 34-pin header ODU 511.066.003.034 or eq.
Mating ODU 517.065.003.034 or eq.
Locking clip ODU 511.065.734.700
J2 4-pin header Hirose DF1–4P–2.5 DS or eq.
Mating Hirose DF1–4S–2.5 R 24
Protector Hirose DF1–4A 1.33
J3 2-pin header Hirose DF1–2P–2.5 DS or eq.
Mating Hirose DF1–2S–2.5 R 24
Protector Hirose DF1–2A 1.33
Connector Description
User video signals are brought onto the display via connector J1. The pin
layout of J1 is compatible with Planar EL640.480-A series and EL7768MS
display. Additionally the pin layout of the first 26 pins is also compatible with
the feature connector on a VGA display controller. The +5 Vdc and +12 Vdc
power input to the display is via connector J2.
For easy interfacing with VGA display controllers the data and control input
signals on J1 are VGA timing compatible. The display automatically determines
the mode of operation.
Additional Grounding for Low EMI
For best EMI attenuation performance, the metal assembly support should be
tied to system ground via the four corner mounting ears or the grounding lug
near the data input connector J1. The grounding lug can also be used for
grounding the shield of the video signal cable.
Control Basics
The EL glass panel is a matrix structure with column and row electrodes
arranged in X-Y formation. Light is emitted when an AC voltage of sufficient
amplitude is applied at a row-column intersection. The display operation is
based on a symmetric, line-at-a-time addressing scheme. User signals VCLK, HS
or _BLANK, and VS control loading of pixel data into the display's internal
frame buffer. Output of the pixel data from the frame buffer as well as the
generation of the display scanning signals are controlled by internal logic.
Input thresholds to the display are 74AC CMOS compatible.
EL640.480-AA1 Operations Manual (020-0357-00A)
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