AUO T420XW01 VB Specification

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Product Description: T420XW01 VB TFT-LCD PANEL with ROHS Guarantee
AUO Model Name: T420XW01 VB
Customer Signature Date AUO Date
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Approved By: Yu Chieh Lin
Reviewed By: Hong Jye Hong
Prepared By: Star Ho
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Document Version: 1.0
Date:2007/3/06
Product Functional Specification
42” WXGA Color TFT-LCD Module
Model Name: T420XW01 VB
(*) Preliminary Specification
( ) Final Specification
Note : This specification is subject to change without notice.
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COVER
CONTENTS
RECORD OF REVISIONS
GENERAL DESCRIPTION 1
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Contents
ITEMNo
ABSOLUTE MAXIMUM RATINGS2
ELECTRICAL SPECIFICATIONS3
ELECTRICAL CHARACTREISTICS3-1
INTERFACE CONNECTIONS3-2
SIGNAL TIMING SPECIFICATIONS3-3
SIGNAL TIMING WAVEFORMS3-4
COLOR INPUT DATA REFERNECE 3-5
POWER SEQUENCE3-6
OPTICAL SFECIFICATIONS4
MECHANICAL CHARACTERISTICS5
6
INTERNATIONAL STANDARDS
SAFETY6-1
EMC6-2
PACKING7
PRECAUTIONS8
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Version Date No Old Description New Description Remark
1.0 2007/3/06 First release
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Record of Revision
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1. General Description
This specification applies to the 42 inch Color TFT-LCD Module T420XW01 VB. This LCD module has
a TFT active matrix type liquid crystal panel 1366x768 pixels, and diagonal size of 42 inch. This
module supports 1366x768 WXGA mode (Non-interlace).
Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arranged in vertical stripes.
Gray scale or the brightness of the sub-pixel color is determined with a 8-bit gray scale signal for each
dot.
The T420XW01 VB has been designed to apply the 8-bit 1 channel LVDS interface method. It is
intended to support displays where high brightness, wide viewing angle, high color saturation, and
high color depth are very important.
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* General Information
Items Specification Unit Note
Active Screen Size 42.02 inches
Display Area 930.25(H) x 523.01(V) mm
Outline Dimension 983.0(H) x 576.0(V) x 52.7(D) mm With inverter
Driver Element a-Si TFT active matrix
Display Colors 16.7M Colors
Number of Pixels 1366 x 768 Pixel
Pixel Arrangement RGB vertical stripe
Display Mode Normally Black
Lamp quantity, type 18pcs, Straight type pcs
Surface Treatment AG, 3H
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2. Absolute Maximum Ratings
The following are maximum values which, if exceeded, may cause faulty operation or damage to the
unit.
Item Symbol Min Max Unit Note
Logic/LCD Drive Voltage VDD -0.3 14.0 [Volt] 1
Input Voltage of Signal Vin -0.3 3.6 [Volt] 1
BLU Input Voltage VDDB -0.3 27.0 [Volt] 1
BLU Brightness Control Voltage
Operating Temperature TOP 0 +50 [oC] 2
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BLON -0.3 5.5 [Volt] 1
Operating Humidity HOP 10 90 [%RH] 2
Storage Temperature TST -20 +60 [oC] 2
Storage Humidity HST 10 90 [%RH] 2
Shock (non-operation) - 50 G 3
Vibration (non-operation) - 1.5 G 4
Thermal shock -20 60 C 5
Altitude test 50000feet (12Kpa)
Note 1 : Duration = 50msec
Note 2 : Maximum Wet-Bulb should be 39and No condensation.
Note 3 : Half sine wave, shock level : 50G(11ms), direction : ±x, ±y, ±z (one time each direction)
Note 4 : Wave form : random, vibration level : 1.5G RMS, Bandwidth : 10--300Hz
Duration : X,Y,Z 30min (one time each direction)
Note 5 : -20C/0.5hr ~ 60C/0.5hr, 10 cycles
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V
3. Electrical Specification
The T420XW01 requires two power inputs. One is employed to power the LCD electronics and to drive
the TFT array and liquid crystal. The second input, which powers the CCFL, is typically generated by
an inverter.
3-1 Electrical Characteristics
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ValuesParameter Symbol
Min Typ Max
LCD:
Power Supply Input Voltage Vdd (11.4) 12 (12.6) Vdc
Power Supply Input Current Idd - (0.75) (0.875) A 1
Power Consumption Pc - 9 (10.5) Watt 1
Inrush Current I
LVDS
Interface
CMOS
Interface
Backlight Power Consumption - (174) (182) Watt 2
Life Time 50000 60000 Hours 3
Differential Input
High Threshold
oltage
Differential Input
Low Threshold
Voltage
Common Input
Voltage
Input High
Threshold Voltage
Input Low Threshold
Voltage
RUSH
TH +100 mV
V
TL -100 mV
V
CIM 1.10 1.25 1.40 V
V
VIH
(High)
IL
V
(Low)
- - (5) A 5
2.4 3.3 Vdc
0 0.7 Vdc
Unit Notes
4
4
The performance of the Lamp in LCM, for example life time or brightness, is extremely influenced
by the characteristics of the DC-AC Inverter. So all the parameters of an inverter should be
carefully designed so as not to produce too much leakage current from high-voltage output of the
inverter. When you design or order the inverter, please make sure unwanted lighting caused by
the mismatch of the lamp and the inverter (no lighting, flicker, etc) never occurs. When you
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s
μ
s
μ
confirm it, the LCD Assembly should be operated in the same condition as installed in your
instrument.
Do not attach a conducting tape to lamp connecting wire. If the lamp wire attach to conducting
tape, TFT-LCD Module have a low luminance and the inverter has abnormal action because
leakage current occurs between lamp wire and conducting tape.
The relative humidity must not exceed 80% non-condensing at temperatures of 40or less. At
temperatures greater than 40, the wet bulb temperature must not exceed 39. When operate
at low temperatures, the brightness of CCFL will drop and the lifetime of CCFL will be reduced.
Note :
1. Vdd=12.0V, fv=60Hz, f
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CLK=81.5 Mhz , 25, Vdd Duration time= 400
, Test pattern : white
pattern
2. The Backlight power consumption shown above does include loss of external inverter at 25.
The used lamp current is the lamp typical current
3. The life is determined as the time at which luminance of the lamp is 50% compared to that of
initial value at the typical lamp current on condition of continuous operating at 252.
4. VCIM = 1.2V
VTH
VCIM
VTL
0V
Figure : LVDS Differential Voltage
5. Measurement Condition: Rising time = 400s
0.9 Vdd
GND
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0.1 Vdd
400
Vdd
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3-2 Interface Connections
- LCD connector: FI-X30SSL-HF (JAE) or equivalent
Note : AUO will notice customer if we change the LCD connector from JAE to others.
- Mating connector: FI-30C2L (JAE) or equivalent
Pin No Symbol Description Note
1 VCC +12V, DC, Regulated
2 VCC +12V, DC, Regulated
3 VCC +12V, DC, Regulated
4 VCC +12V, DC, Regulated
5 GND Ground and Signal Return
6 GND Ground and Signal Return
7 GND Ground and Signal Return
8 GND Ground and Signal Return
9 LVDS Option Low/Open for Normal (NS), High for JEIDA Default : NS mode
10 Reserved Open or High AUO internal test
11 GND Ground and Signal Return for LVDS
12 RXIN0- LVDS Channel 0 negative
13 RXIN0+ LVDS Channel 0 positive
14 GND Ground and Signal Return for LVDS
15 RXIN1- LVDS Channel 1 negative
16 RXIN1+ LVDS Channel 1 positive
17 GND Ground and Signal Return for LVDS
18 RXIN2- LVDS Channel 2 negative
19 RXIN2+ LVDS Channel 2 positive
20 GND Ground and Signal Return for LVDS
21 RXCLKIN- LVDS Clock negative
22 RXCLKIN+ LVDS Clock positive
23 GND Ground and Signal Return for LVDS
24 RXIN3- LVDS Channel 3 negative
25 RXIN3+ LVDS Channel 3 positive
26 GND Ground and Signal Return for LVDS
27 Reserved Open or High AUO internal test
28 Reserved Open or High AUO internal test
29 GND Ground and Signal Return
30 GND Ground and Signal Return
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LVDS Option = HighJEIDA
Previous Cycle Current Cycle Next Cycle
Clock
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RIN0+ RIN0-
RIN1+ RIN1-
RIN2+ RIN2-
RIN3+
RIN3-
LVDS Option = Low/OPENNS
Previous Cycle Current Cycle Next Cycle
Clock
RIN0+ RIN0-
R2R7 G2G2R2R3 R4R5R6 R3
G7
G3B2 B3B3G3G4 G5G6G6 G4
B4NA DEDEB4B5 B6B7NA B5
R0B1 NANAR0R1 G0G1B0 R1
R0R5 G0G0R0R1 R2R3R4 R1
RIN1+ RIN1-
RIN2+ RIN2-
RIN3+
RIN3-
G1B0 B1B1G1G2 G3G4G5 G2
B2NA DEDEB2B3 B4B5NA B4
R6B7 NANAR6R7 G6G7B6 R7
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Backlight Connector Pin Configuration
1. Electrical specification
No ITEM SYMBOL CONDITION MIN TYP MAX UNIT Note
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1 Input Voltage V
2 Input Current I
3 Input Power P
4 Input inrush current I
DDB
DDB
DDB
RUSH
5 Output Frequency FBL V
ON/OFF Control
6
Voltage
V
BLON
ON V
OFF V
--- (22.8) 24.0 (26.4) V
V
=24V
DDB
100% Brightness
V
=24V
DDB
100% Brightness
V
=24V
DDB
100% Brightness
=24V --- 58 --- kHz
DDB
=24V 2.0 --- 3.3 V
DDB
=24V 0.0 --- 0.8 V
DDB
ON/OFF Control
7
Current
External PWM
8
Control Voltage
External PWM
9
Control Current
EV
EI
I
V
BLON
MAX --- 2.0 --- 3.3 V
PWM
MIN --- 0 --- 0.8 V
MAX PWM=100% 0 --- 2 mA
PWM
MIN PWM=30% 0 --- 2 mA
=24V 0 --- 2 mA
DDB
External PWM Duty
10
Ratio
ED
PWM
--- (30) --- 100 %
DC
(6.93) (7.3) (7.66) A
DC
--- (174) (182) W 1
--- --- (11) A
DC
DC
DC
DC
DC
DC
DC
DC
1
2
External PWM
11
Frequency
EF
PWM
--- 150 180 300 Hz
Ta=255, Turn on for 45minutes
Note 1 : V
DIM/Open = 1.6V; PDIM = Open/High
Note 2 : Duration = 20 ms
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2. Input specification
Master Board:
Connector 1: S14B-PH-SM3-TB(JST) or equivalent
Pin No Symbol Description
1 VDDB Operating Voltage Supply, +24V DC regulated
2 VDDB Operating Voltage Supply, +24V DC regulated
3 VDDB Operating Voltage Supply, +24V DC regulated
4 VDDB Operating Voltage Supply, +24V DC regulated
5 VDDB Operating Voltage Supply, +24V DC regulated
6BLGND Ground and Current Return
7BLGND Ground and Current Return
8BLGND Ground and Current Return
9BLGND Ground and Current Return
10 BLGND Ground and Current Return
11 Reserve Open
12 VBLON BL On-Off: Open/High (3.3V) for BL On as default
13 PDIM
14
(1)
P
DIM
Selection
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External PWM or Analog Dimming Control input; External PWM : 0V min, 3.3V max (duty 20~100%) Analog dimming : 0V min brightness, 3.3V max brightness
GND: External PWM dimming;
(3)
Open/High: Analog dimming.
Note (1) P
DIM is PWM duty control Input for +3.3V TTL Level Signal. This Input Signal is Continuous
Pulse Signal with +3.3V, TTL Level Signal Spec. If this is Open or +3.3V, 100% Duty (i.e. +3.3V, DC level), Back Light should perform 100% Luminance. Duty Ratio of this Input signal should be proportional relationship in certain range of control without any kind of inherent side effect like Waterfall effect on Screen. Guaranteed Duty Range and Dimming Ratio should be specified with supplementary measurement result.
Note (2) 14 Pin is selection pin for PWM control method; if this pin is connected to GND, P
th
Pin should have Logic Level Duty Signal for PWM control. If this is set to High or
of 13 Open, 13 Wave Generator to generate internal PWM signal. Default setting is “Analog”, means when it is “Not Connected”, 13
th
Pin should have DC level signal therefore the Inverter should have Saw Tooth
th
pin of PWM control should be have DC Level signal for PWM.
Note (3) Pin 14 selection vs. Pin 13 control function table:
Pin 13
Default: Open/High: 100%
Pin 14 = GND
Pin 14 = Open/High(5.0V)
Analog dimming/Internal PWM
External PWM
(AC Signal Control Duty)
(DC Power Control Duty)
DIM input
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Slave Board:
Connector 2: S12B-PH-SM3-TB(JST) or equivalent
Pin No Symbol Description
1 VDDB Operating Voltage Supply, +24V DC regulated
2 VDDB Operating Voltage Supply, +24V DC regulated
3 VDDB Operating Voltage Supply, +24V DC regulated
4 VDDB Operating Voltage Supply, +24V DC regulated
5 VDDB Operating Voltage Supply, +24V DC regulated
6BLGND Ground and Current Return
7BLGND Ground and Current Return
8BLGND Ground and Current Return
9BLGND Ground and Current Return
10 BLGND Ground and Current Return
11 NC
12 NC
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3-3 Signal Timing Specifications
This is the signal timing required at the input of the User connector. All of the interface signal timing
should be satisfied with the following specifications for it’s proper operation.
Timing Table (DE only Mode)
Vertical Frequency Range A (60Hz)
Signal Item Symbol Min Type Max Unit
Vertical Section
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Period Tv 789 822 Th
Active Tdisp (v) — 768 — Th
Blanking Tblk (v) 21 54 Th
Period Th 1414 1722 Tclk
Active Tdisp (h) — 1366 — Tc l k
Horizontal Section
Clock
Vertical Frequency Frequency Vs 58 60 62 Hz
Horizntal Frequency Frequency Hs 45.76 50.96 KHz
Vertical Frequency Range B (50Hz)
Signal Item Symbol Min Type Max Unit
Vertical Section
Horizontal Section
Blanking Tblk (h) 48 356 Tclk
Period CLK 11.36 — 15.38 ns
Frequency Freq 65 88 MHz
Period Tv 789 822 Th
Active Tdisp (v) — 768 — Th
Blanking Tblk (v) 21 54 Th
Period Th 1414 1722 Tclk
Active Tdisp (h) — 1366 — Tc l k
Blanking Tblk (h) 48 356 Tclk
Clock
Period CLK 13.51 — 18.52 ns
Frequency Freq 54 74 MHz
Vertical Frequency Frequency Vs 48 50 52 Hz
Horizntal Frequency Frequency Hs 37.87 42.74 KHz
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3-4 Signal Timing Waveforms
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RGB Dat a
1366
Invalid Data
1
2
3
4
5
6
DE
Pix el
Pix el
Pi xel
Pixe l
Pixe l
Pixe l
Pix el
Tdisp(h)
CLK
Tcl k
Th
RGB
Data
Line
768
Invalid Data Invalid Data
Line
1
Line
2
Line
3
Line
4
DE
Th
Tv
Tdi sp(v)
1366
Pix el
Line
768
Invalid Data
Pix el
1
Pix el
2
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3-5 Color Input Data Reference
The brightness of each primary color (red, green and blue) is based on the 8 bit gray scale data input
for the color; the higher the binary input, the brighter the color. The table below provides a reference for
color versus data input.
Color
MSB LSB
R7 R6 R5 R4 R3 R2 R1 R0 G7 G6 G5 G4 G3 G2 G1 G0 B7 B6 B5 B4 B3 B2 B1 B0
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COLOR DATA REFERENCE
Input Color Data
RED
MSB LSB
GREEN
BLUE
MSB LSB
Basic
Color
RED
GREEN
Black 0 0 0000000000000000000000
Red(255) 1 11111110000000000000000
Green(255) 000000001111111100000000
Blue(255) 0 00000000000000011111111
Cyan 0 00000001111111111111111
Magenta 1 11111110000000011111111
Yellow 1 11111111111111100000000
White 1 11111111111111111111111
RED(000) 0 00000000000000000000000
RED(001) 0 00000010000000000000000
----
RED(254) 1 11111100000000000000000
RED(255) 1 11111110000000000000000
GREEN(000) 000000000000000000000000
GREEN(001) 000000000000000100000000
----
GREEN(254) 000000001111111000000000
GREEN(255) 0 0 0000001111111100000000
BLUE(000) 0 00000000000000000000000
BLUE(001) 0 00000000000000000000001
BLUE
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-------
BLUE(254) 0 00000000000000011111110
BLUE(255) 0 00000000000000011111111
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3-6 Power Sequence
1. Power sequence of panel
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Values
Parameter
t1 400 - 5000 us
t2 20 - 50 ms
t3 700 or (200)* - - ms
t4 10 - - ms
t5 0 - 50 ms
t6 0.47 - 300 ms
t7 1 - - s
* : If t3=200ms, input black signal till 700ms from system is necessary. In case of t3<200ms, the
abnormal display will be happened. But it will not damage timing controller.
Apply the lamp voltage within the LCD operating range. When the backlight turns on before the LCD
operation or the LCD turns off before the backlight turns off, the display may momentarily become
abnormal.
Caution : The above on/off sequence should be applied to avoid abnormal function in the display. In
case of handling, make sure to turn off the power when you plug the cable into the input connector or
pull the cable out of the connector.
Min. Typ. Max.
Units
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f
2. Power sequence of inverter
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Power input for Backlight 10%
VDDB
Dimming control signal
VDIM
Back light on/of
(VBLON)
VDDB
VDDB(Typ) X 0.8
0V
90%
24V(typ.)
T1 T2 T5
T3 T4
Deep condition for Inverter
T6
90%
ValuesParameter
Units
Min. Typ. Max.
T1 20 - - ms
T2 50 - - ms
T3 0 - - ms
T4 0 - - ms
T5 0 - - ms
T6 - - 10 ms
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4. Optical Specification
Optical characteristics are determined after the unit has been ‘ON’ and stable for approximately 45
minutes in a dark environment at 25. The values specified are at an approximate distance 50cm
from the LCD surface at a viewing angle of and equal to 0.
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SR3 or equivalent
Fig.4-1 Optical measurement equipment and method
Parameter
Symbol
Values
Units Notes
Min. Typ. Max.
Contrast Ratio CR 1000 1500 1
Surface Luminance, white LWH 400 500
Luminance Variation
Response Time (Average)
9 p 1.3 3
WHITE
T
8 25 ms 4,5 (Gray to Gray)
cd/
2
Rise Time Tr 15 ms
Decay Time Tf 5 ms
Color Coordinates
RED R
X
0.640
RY0.330
GREEN G
X
0.290
GY0.600
BLUE B
Typ.-0.03
X
0.150
Typ.+0.03
BY0.060
WHITE W
W
X
Y
0.280
0.290
Viewing Angle Contrast Ratio>10
x axis, right(=0)
x axis, left(=180)
y axis, up(=90)
y axis, down (=0)
r
l
u
d
89 Degree 6
89
89
89
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Note:
1. Contrast Ratio (CR) is defined mathematically as:
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Contrast ratio (CR)=
Brightness on the "white" state Brightness on the "black" state
2. Surface luminance is luminance value at point 1 across the LCD surface 50cm from the surface with
all pixels displaying white. From more information see Fig. 4-2. When V
L
WH=Lon1
, Where L
is the luminance with all pixels displaying white at center 1 location.
on1
V/2
V/6
DDB = 24V, IDDB = (7.3A).
H
1
H/2H/6
Fig.4-2 Optical measurement point
3. The variation in surface luminance,
WHITE(9P)
=Maximum(L
is defined under 100% brightness as:
WHITE
, L
on1
on2
,…,L
)/Minimum(L
on9
on1
, L
on2
,…L
on9
)
V
4. Response time is the time required for the display to transition from white(L255) to black(L0) (Decay
Time, Tr
=Tf) and from black(L0) to white(L255) (Rise Time, TrR=Tr). For additional information see
D
Fig. 4-3.
TrD
TrR
Fig.4-3 Response time
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5. The response time is defined as the following figure and shall be measured by switching the input
signal among 0%, 25%, 50%, 75%, 100% luminance. For additional information see Fig. 4-4.
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100%
90%
L0,15,L31,.L255
L0,15,L31,
.L255
Luminance
10%
0%
Tr
6. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are determined
for the horizontal or x axis and the vertical or y axis with respect to the z axis which is normal to the
LCD surface. For more information see Fig. 4-5.
L0,15,L31,.L255
D
Fig.4-4 Response time
Tr
Time
R
Fig.4-5 Viewing Angle Definition
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5. Mechanical Characteristics
The contents provide general mechanical characteristics for the model T420XW01. In addition the
figures in the next page are detailed mechanical drawing of the LCD.
Outline Dimension
Active Display Area
Weight 15000g (Max)
Surface Treatment AG, 3H
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Horizontal (typ.) 983.0mm
Vertical (typ.) 576.0mm
Depth (typ.) 52.7mm (with inverter)
Horizontal (typ.) 939.0mmBezel Area
Vertical (typ.) 531.3mm
Horizontal 930.25mm
Vertical 523.01mm
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2D drawing
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6. International Standard
6-1. Safety
(1) UL6500, UL 60065 Underwriters Laboratories, Inc. (AUO file number : E204356)
Standard for Safety of Information Technology Equipment Including electrical Business
Equipment.
(2) CAN/CSA C22.2 No. 950-95 Third Edition, Canadian Standards Association, Jan. 28, 1995
Standard for Safety of Information Technology Equipment Including Electrical Business
Equipment.
(3) EN60950: 1992+A2: 1993+A2: 1993+C3: 1995+A4: 1997+A11: 1997
IEC 950: 1991+A1: 1992+A2: 1993+C3: 1995+A4:1996
IEC 60065: version 7th
European Committee for Electro technical Standardization (CENELEC)
EUROPEAN STANDARD for Safety of Information Technology Equipment Including Electrical
Business Equipment.
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6-2. EMC
a) ANSI C63.4 “Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and
Electrical Equipment in the Range of 9kHz to 40GHz. “American National standards
Institute(ANSI), 1992
b) C.I.S.P.R “Limits and Methods of Measurement of Radio Interface Characteristics of Information
Technology Equipment.” International Special committee on Radio Interference.
c) EN 55022 “Limits and Methods of Measurement of Radio Interface Characteristics of Information
Technology Equipment.” European Committee for Electrotechnical Standardization. (CENELEC),
1998
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Module
1pcs Module/ESD Bag
3pcs Modules
Cushion set
3
pcs / 1 carton
7. Packing
Packing Instruction
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Package information:
Carton outside dimension : 1087x285x716mm
Carton/Package weight : 3kg
Gross weight(per Box) : 48kg
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Shipping label
Green Mark Description:
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Model No: T420XW01 VB
For Pb Free products, AUO will add
For RoHS compatible products, AUO will add
Note. The Green Mark will be present only when the green documents have been ready by AUO
Internal Green Team. (The definition of green design follows the AUO green design checklist.)
for identification.
for identification.
Carton label
Model No: T420XW01 VB
Pallet information
By air cargo : : (4x1) x2 layers, one pallet put 8 boxes, total 24 pcs module.
By sea : (4x1) x3 layers, one pallet put 12 boxes, total 24 pcs module.
Pallet dimension : 1150x1100x120mm
Pallet weight : 10kg
By air total weight : 48 kg/box X 8 boxes=384 kg (with pallet weight 394kg)
By sea total weight : 48 kg/box X 12 boxes=576 kg (with pallet weight 586kg)
Corner angle
Stretch film
Label
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Moisture-proof film
PET band
Corner angle
Pallet
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8. PRECAUTIONS
Please pay attention to the followings when you use this TFT LCD module.
8-1 MOUNTING PRECAUTIONS
(1) You must mount a module using holes arranged on back side of panel
(2) You should consider the mounting structure so that uneven force (ex. Twisted stress) is not
applied to module. And the case on which a module is mounted should have sufficient strength
so that external force is not transmitted directly to the module.
(3) Please attach the surface transparent protective plate to the surface in order to protect the
polarizer. Transparent protective plate should have sufficient strength in order to the resist
external force.
(4) You should adopt radiation structure to satisfy the temperature specification.
(5) Acetic acid type and chlorine type materials for the cover case are not desirable because the
former generates corrosive gas of attacking the polarizer at high temperature and the latter
causes circuit break by electro-chemical reaction.
(6) Do not touch, push or rub the exposed polarizers with glass, tweezers or anything harder than
HB pencil lead. And please do not rub with dust clothes with chemical treatment. Do not touch
the surface of polarizer for bare hand or greasy cloth. (Some cosmetics are detrimental to the
polarizer.)
(7) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft
materials like chamois soaks with petroleum benzene. Normal-hexane is recommended for
cleaning the adhesives used to attach front/ rear polarizers. Do not use acetone, toluene and
alcohol because they cause chemical damage to the polarizer.
(8) Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer
causes deformations and color fading.
(9) Do not open the case because inside circuits do not have sufficient strength.
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8-2 OPERATING PRECAUTIONS
(1) The spike noise causes the mis-operation of circuits. It should be lower than following voltage:
V=200mV(Over and under shoot voltage)
(2) Response time depends on the temperature. (In lower temperature, it becomes longer..)
(3) Brightness depends on the temperature. (In lower temperature, it becomes lower.) And in
lower temperature, response time (required time that brightness is stable after turned on)
becomes longer.
(4) Be careful for condensation at sudden temperature change. Condensation makes damage to
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polarizer or electrical contacted parts. And after fading condensation, smear or spot will occur.
(5) When fixed patterns are displayed for a long time, remnant image is likely to occur.
(6) Module has high frequency circuits. Sufficient suppression to the electromagnetic interference
shall be done by system manufacturers. Grounding and shielding methods may be important
to minimize the interface.
8-3 ELECTROSTATIC DISCHARGE CONTROL
Since a module is composed of electronic circuits, it is not strong to electrostatic discharge. Make
certain that treatment persons are connected to ground through wrist band etc. And don’t touch
interface pin directly.
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8-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE
Strong light exposure causes degradation of polarizer and color filter.
8-5 STORAGE
When storing modules as spares for a long time, the following precautions are necessary.
(1) Store them in a dark place. Do not expose the module to sunlight or fluorescent light. Keep the
temperature between 5and 35at normal humidity.
(2) The polarizer surface should not come in contact with any other object. It is recommended that
they be stored in the container in which they were shipped.
8-6 HANDLING PRECAUTIONS FOR PROTECTION FILM
(1) The protection film is attached to the bezel with a small masking tape. When the protection film is
peeled off, static electricity is generated between the film and polarizer. This should be peeled off
slowly and carefully by people who are electrically grounded and with well ion-blown equipment or
in such a condition, etc.
(2) When the module with protection film attached is stored for a long time, sometimes there remains
a very small amount of flue still on the Bezel after the protection film is peeled off.
(3) You can remove the glue easily. When the glue remains on the Bezel or its vestige is recognized,
please wipe them off with absorbent cotton waste or other soft material like chamois soaked with
normal-hexane.
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