The LC420WX5 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent
Lamp(CCFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element.
It is a transmissive type display operating in the normally black mode. It has a 42.0 inch diagonally measured
act i ve dis p lay ar ea wi th WXG A re sol uti on (7 68 ve rti cal b y 1366 hor izo nta l pix el ar ray).
Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arranged in vertical stripes.
Gray scale or the luminance of the sub-pixel color is determined with a 8-bit gray scale signal for each dot,
thus presenting a palette of more than 16.7M(true) colors.
It has been designed to apply the 8-bit 1-port LVDS interface.
It is intended to support LCD TV, PCTV where high brightness, super wide viewing angle, high color gamut,
high color depth and fast response time are important.
Hard coating(3H), Anti-glare treatment of the front polarizer (Haze 13%)Surface Treatment
Ver. 1.0Dec. 15, 2006
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LC420WX5
Liquid Crystal Display
Product Specification
2. Absolute Maximum Ratings
The following items are maximum values which, if exceeded, may cause faulty operation or damage to the
LCD module.
Table 1. ABSOLUTE MAXIMUM RATINGS
Value
ParameterRemark
Symbol
Unit
MaxMin
Power Input
Voltage
Inverter Control
Voltage
LCD circuit
Inverter
ON/OFF
Brightness
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity
LCD
BL
OFF/VON
BR_B
OP
ST
OP
ST
+14.0-0.3V
+28.021.6V
+5.25-0.3V
+5.00.0V
+500T
+50-20T
V
DC
V
DC
V
DC
V
DC
°
C
°
C
%RH9010H
%RH9010H
Note 1. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 39 °C Max, and no condensation of water.
2. Gravity mura can be guaranteed under 40 °C condition.
at25 ±2 °C
Note 1
Ver. 1.0Dec. 15, 2006
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LC420WX5
Liquid Crystal Display
Product Specification
3. Electrical Specifications
3-1. Electrical Characteristics
It requires two power inputs. One is employed to power for the LCD circuit. The other input power for the
CCFL/Backlight is to power inverter.
Table 2. ELECTRICAL CHARACTERISTICS
ParameterSymbol
Value
Circuit :
Power Input Voltage
Power Input Current
Power Consumption
Rush current
LCD
I
LCD
LCD
RUSH
Note : 1. The specified current and power consumption are under the V
condition whereas mosaic pattern(8 x 6) is displayed and fVis the frame frequency.
2. The current is specified at the maximum current pattern.
3. The duration of rush current is about 2ms and rising time of power input is 1ms (min.).
White : 255Gray
Black : 0Gray
MaxTypMin
V
12.612.011.4V
=12.0V, 25 ± 2°C, fV=60Hz
LCD
DC
NoteUnit
1mA689530-
2mA780600-
1Watt8.276.36P
3A3.0--I
Mosaic Pattern(8 x 6)
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LC420WX5
Liquid Crystal Display
Product Specification
Table 3. ELECTRICAL CHARACTERISTICS (Continue)
ParameterSymbol
Inverter :
Power Supply
Input Current
Input Voltage for
Control System
Signals
After Aging
Before Aging
On/Off
Pulse Duty(PWM)
(Burst mode)
Audible Noise
Lamp :
Lamp Current (ExtVbr-B = 100%)
OnVdc5.0-2.5V on
Off
IBL_A
IBL_B
I
O-MAX
I
O-TYP
I
O-MIN
2.5V
0.0
TsDischarge Stabilization Time
Notes :
1. Electrical characteristics are determined after the unit has been ‘ON’ and stable for approximately 120
minutes at 25±2°C. The specified current and power consumption are under the typical supply Input voltage
24V and Vbr 1.65V, it is total power consumption.
The ripple voltage of the power supply input voltage is under 0.4 Vp-p. LPL recommend Input Voltage is
24.0V ±5%.
2. Electrical characteristics are determined within 30 minutes at 25±2°C.
The specified currents are under the typical supply Input voltage 24V.
3.
Brightness Control. This VBRVoltage control brightness.
Boost Voltage
4.
LPL recommend that the PWM freq. is
Function
synchronized with the treble harmonic of Vsync signal of system.
5. The brightness of the lamp after lighted for 5minutes is defined as 100%.
TSis the time required for the brightness of the center of the lamp to be not less than 95% at typical current.
The screen of LCD module may be partially dark by the time the brightness of lamp is stable after turn on.
6. Specified Values are for a single lamp which is aligned horizontally.
The life time is determined as the time which luminance of the lamp is 50% compared to that of initial value
at the typical/ maximum lamp current on condition of continuous operating at 25 ± 2°C
7.The duration of rush current is about 15ms.
Ver. 1.0Dec. 15, 2006
Values
Boost Voltage
MaxTypMin
245
5.0-High Level
0.8-Low Level
NotesUnit
Vdc26.224.022.8VBLPower Supply Input Voltage
Vdc28Unloading Input Voltage
Boost = 1.65V … 1A7.26.75-
Boost = 3.3V … 1A7.77.25-
Boost = 1.65V … 2A7.57.2-
Boost = 3.3V … 2A8.47.9-
A8.6--IrushPower Supply Input Current(In-Rush)
W172.8162-PBLPower Consumption
Vdc3.3-0.0VBRBrightness Adjust
Vdc0.80.0-0.3V off
%10020EXTVbr-BBrightness Adj(Burst mode)
DC
V
24Peak Level
27Overall Level
DC
1
1Vp-p0.4--Power Supply Input Voltage Ripple
VBL = 24V
EXTVbr-B=100%
Boost = 1.65V…7
1
4Hz145NTSC/PALPWM Frequency for NTSC & PAL
Appendix DdB(A)
Boost = TypV(rms)175014001050VoutLamp Voltage (ExtVbr-B = 100%)
Boost = MaxmA(rms)144135126
Boost = TYPmA(rms)135126117
Boost = MinmA(rms)126117108
5min3
6Hrs50,000Boost(0V~3.3V)Life Time
Function
Maximum Brightness (105%)3.3VMinimum Brightness (95%)0V
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LC420WX5
Liquid Crystal Display
Product Specification
3-2. Interface Connections
This LCD module employs two kinds of interface connection, a 30-pin connector is used for the module
electronics and Master 14-pin and Slave 12-pin connectors are used for the integral backlight system.
3-2-1. LCD Module
- LCD Connector(CN1) : FI-X30SSL-HF (Manufactured by JAE) or Equivalent
- Mating Connector : FI-30C2L (Manufactured by JAE) or Equivalent
Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION
NoteDescriptionSymbolPin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Note:
1. The pin no 9 is an option pin for DISM or LG format.( LG Format = “GND”or“OPEN”/ DISM Format =“VCC”)
Please refer to page 9 ,10 and 30 for further details.
2. The pin no 10 is an option pin for DCR Function ( Enable = “VCC” / Disable =“GND”)
3. The pin no 30 is LCD Test option.
“AGP” (Auto Generation LCM operates Pattern) or “NSB” (No Signal Black) is case that LVDS signals
are out of frequency or abnormal condition in spite of 12 volt power supply.
LPL recommends “NSB”. ( AGP : “VCC” or “OPEN” / NSB : “GND” )
4. All GND (ground) pins should be connected together, which should be also connected to the LCD
module’s metal frame.
5. All V
LCD
(power input) pins should be connected together.
6. Input Levels of LVDS signals are based on the IEA 664 Standard.
VLCDPower Supply +12.0V
Power Supply +12.0VVLCD
Power Supply +12.0VVLCD
Power Supply +12.0VVLCD