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LC420WUN
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Preliminary Specification
( ) Final Specification
Title 42.0" WUXGA TFT LCD
BUYER General SUPPLIER LG Display Co., Ltd.
MODEL *MODEL LC420WUN
SUFFIX SCA1(RoHS Verified)
*When you obtain standard approval,
please use the above model name without suffix
SIGNATURE SIGNATURE
APPROVED BY APPROVED BY
DATE DATE
/ P. Y. KIM / Team Leader
REVIEWED BY
/ S. J LEE / Project Leader
PREPARED BY
/ S. M Lee / Engineer
Please return 1 copy for your confirmation with TV Products Development Dept.
your signature and comments. LG Display LCD Co., Ltd
Ver. 1.0 1 /41
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LC420WUN
Product Specification
CONTENTS
Number ITEM Page
COVER 1
CONTENTS 2
RECORD OF REVISIONS 3
1 GENERAL DESCRIPTION 4
2 ABSOLUTE MAXIMUM RATINGS 5
3 ELECTRICAL SPECIFICATIONS 6
3-1 ELECTRICAL CHARACTERISTICS 6
3-2 INTERFACE CONNECTIONS 8
3-3 SIGNAL TIMING SPECIFICATIONS 10
3-4 LVDS SIGNAL SPECIFICATIONS 11
3-5 COLOR DATA REFERENCE 14
3-6 POWER SEQUENCE 15
4 OPTICAL SPECIFICATIONS 17
5 MECHANICAL CHARACTERISTICS 21
6 RELIABILITY 24
7 INTERNATIONAL STANDARDS 25
7-1 SAFETY 25
7-2 EMC 25
7-3 Environment 25
8 PACKING 26
8-1 INFORMATION OF LCM LABEL 26
8-2 PACKING FORM 26
9 PRECAUTIONS 27
9-1 MOUNTING PRECAUTIONS 27
9-2 OPERATING PRECAUTIONS 27
9-3 ELECTROSTATIC DISCHARGE CONTROL 28
9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE 28
9-5 STORAGE 28
9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM 28
Ver. 1.0 2 /41
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LC420WUN
Product Specification
RECORD OF REVISIONS
Revision No. Revision Date Page Description
0.0 Nov .23. .2009 - Preliminary Specification (First Draft)
0.1 Dec. 27. 2009 15 Add T8 Spec in Power Sequence
16 Change Inverter Power Sequence
36,37 Define T-con Option Circuit
1.0 Feb. 23. 2010 - Final Specification
8 Change User Connector Config. ( Pin # 1)
Ver. 1.0 3 /41
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LC420WUN
Product Specification
1. General Description
The LC420WUN is a Color Active Matrix Liquid Crystal Display with an integral External Electrode Fluorescent
Lamp(EEFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element.
It is a transmissive display type which is operating in the normally black mode. It has a 42.02 inch diagonally
measured active display area with WUXGA resolution (1080 vertical by 1920 horizontal pixel array).
Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arrayed in vertical stripes.
Gray scale or the luminance of the sub-pixel color is determined with a 10-bit gray scale signal for each dot.
Therefore, it can present a palette of more than 1.06Bilion (true) colors.
It has been designed to apply the 10-bit 2-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.
Mini-LVDS(RGB)
EEPROM
Source Driver Circuit
OPC Enable
ExtVBR-B SCL SDA S1 S1920
VBR-B out G1
LVDS LVDS 1,2 Timing Controller
2Port LVDS Rx + OPC + DGA + ODC
LVDS
Option
signal
Integrated Control TFT - LCD Panel
Select Signals (1920 RGB 1080 pixels)
CN1
Bit
(51pin) [Gate In Panel]
Select I2C
Power Circuit Power Signals G1080
+12.0V
Block
EXTVBR-B
3PinX1CN(High)
Status Inverter Back light Assembly
+24.0V, GND 3PinX1CN(High)
General Features
Active Screen Size 42.02 inches(1067.31mm) diagonal
Outline Dimension 983.0(H) x 576.0 (V) x 51.0 mm(D) (Typ.)
Pixel Pitch 0.4845 mm x 0.4845 mm
Pixel Format 1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement
Color Depth 10bit(D) , 1.06Billon colors
Luminance, White 500 cd/m2 (Center 1point ,Typ.)
Viewing Angle (CR>10) Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))
Power Consumption Total 156.8W (TYP.) (Logic=7.8W, Inverter=149W )
Weight 9.1 Kg (Typ)
Display Mode Transmissive mode, Normally black
Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer (Haze 10%)
Ver. 1.0 4 /41
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LC420WUN
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
Parameter Symbol Unit Note
Min Max
LCD Circuit VLCD -0.3 +14.0 VDC
Power Input Voltage
Inverter VBL -0.3 + 27.0 VDC
ON/OFF VOFF / VON -0.3 +5.5 VDC 1
Inverter Control Voltage
Brightness VBR 0.0 +5.0 VDC
T-Con Option Selection Voltage VLOGIC -0.3 +4.0 VDC
Operating Temperature TOP 0 +50 C
2,3
Storage Temperature TST -20 +60 C
Panel Front Temperature TSUR - +68 C 4
Operating Ambient Humidity HOP 10 90 %RH
2,3
Storage Humidity HST 10 90 %RH
Note1. Ambient temperature condition (Ta = 25 r 2 C )
2. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be Max 39 C, and no condensation of water.
3. Gravity mura can be guaranteed below 40 C condition.
4. The maximum operating temperatures is based on the test condition that the surface temperature
of display area is less than or equal to 68 C with LCD module alone in a temperature controlled chamber.
Thermal management should be considered in final product design to prevent the surface temperature of
display area from being over 68 . The range of operating temperature may degraded in case of
improper thermal management in final product design.
90%
60
60%
50 Storage
Humidity [(%)RH]
Wet Bulb
Temperature [ C]
40
40%
Operation
30
20
10
0
10%
-20 0 10 20 30 40 50 60 70 80
Dry Bulb Temperature [ C]
Ver. 1.0 5 /41
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LC420WUN
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 Is used for the EEFL
backlight and inverter circuit.
Table 2. ELECTRICAL CHARACTERISTICS
Value
Parameter Symbol Unit Note
Min Typ Max
Circuit :
Power Input Voltage VLCD 10.8 12.0 13.2 VDC
455 650 845 mA 1
Power Input Current (TBD) ILCD
668 955 1240 mA 2
Power Consumption PLCD 7.8 9.2 Watt 1
Rush current IRUSH - - 5.0 A 3
Note 1. The specified current and power consumption are under the VLCD=12.0V, Ta=25 r 2 C, fV=60Hz
condition whereas mosaic pattern(8 x 6) is displayed and fV is 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 0.5ms (min.).
White : 1023 Gray
Black : 0 Gray
Mosaic Pattern(8 x 6)
Ver. 1.0 6 /41
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LC420WUN
Product Specification
Table 3. ELECTRICAL CHARACTERISTICS (Continue)
Values
Parameter Symbol Unit Note
Min Typ Max
Inverter :
Power Supply Input Voltage VBL 22.8 24.0 25.2 VDC 1
Power Supply After Aging IBL_A - 6.2 6.8 A 1
Input Current Before Aging IBL_B - 6.7 7.3 A 2
VBL = 22.8V
Power Supply Input Current (In-Rush) IRUSH - - 11 A EXTVBR-B = 100%
6
Power Consumption (TBD) PBL - 149 164 W 1
On VON 2.5 - 5.0 VDC
On/Off
Off VOFF -0.3 0.0 0.8 VDC
On Duty
Brightness Adjust EXTVBR-B 30 - 100 %
Input Voltage for 7
Control System PAL 100 Hz 5
Signals PWM Frequency for
NTSC & PAL NTSC 120 Hz 5
Pulse Duty High Level 2.5 - 5.0 VDC
Level (PWM) High: Lamp on
Low : Lamp off
(Burst mode) Low Level 0.0 - 0.8 VDC
Lamp:
Discharge Stabilization Time Ts 3 min 3
Life Time 50,000 60,000 Hrs 4
Note 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
24Vand VBR (EXTVBR-B : 100%), it is total power consumption.
2. Electrical characteristics are determined within 30 minutes at 25 2 C.
The specified currents are under the typical supply Input voltage 24V.
3. The brightness of the lamp after lighted for 5minutes is defined as 100%.
TS is 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.
4. 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 lamp current (EXTVBR-B :100%), on condition of continuous operating at 25 2 C
5. LGD recommend that the PWM freq. is synchronized with Two times harmonic of Vsync signal of system.
6. The duration of rush current is about 10ms.
7. EXTVBR-B is based on input PWM duty of the inverter.
Ver. 1.0 7 /41
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LC420WUN
Product Specification
3-2. Interface Connections
This LCD module employs two kinds of interface connection, 51-pin connector is used for the module
electronics and 14-pin connector is used for the integral backlight system.
3-2-1. LCD Module
- LCD Connector : FI-R51S-HF(manufactured by JAE) or KN25-51P-0.5SH(manufactured by Hirose)
(CN1) Refer to below table
- Mating Connector : FI-R51HL(JAE) or compatible
Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION
No Symbol Description No Symbol Description
1 NC No Connection 27 Bit Select `H' or NC= 10bit(D) , `L' = 8bit
2 NC No Connection 28 R2AN SECOND LVDS Receiver Signal (A-)
3 NC No Connection 29 R2AP SECOND LVDS Receiver Signal (A+)
4 NC No Connection (Reserved for LGD) 30 R2BN SECOND LVDS Receiver Signal (B-)
5 NC No Connection (Reserved for LGD) 31 R2BP SECOND LVDS Receiver Signal (B+)
6 NC No Connection (Reserved for LGD) 32 R2CN SECOND LVDS Receiver Signal (C-)
7 LVDS Select `H' =JEIDA , `L' or NC = VESA 33 R2CP SECOND LVDS Receiver Signal (C+)
8 EXTVBR-B External VBR (From System) 34 GND Ground
9 VBR-B out OPC output (From LCM) 35 R2CLKN SECOND LVDS Receiver Clock Signal(-)
10 OPC Enable `H' = Enable , `L' or NC = Disable 36 R2CLKP SECOND LVDS Receiver Clock Signal(+)
11 GND Ground 37 GND Ground
12 R1AN FIRST LVDS Receiver Signal (A-) 38 R2DN SECOND LVDS Receiver Signal (D-)
13 R1AP FIRST LVDS Receiver Signal (A+) 39 R2DP SECOND LVDS Receiver Signal (D+)
14 R1BN FIRST LVDS Receiver Signal (B-) 40 R2EN SECOND LVDS Receiver Signal (E-)
15 R1BP FIRST LVDS Receiver Signal (B+) 41 R2EP SECOND LVDS Receiver Signal (E+)
16 R1CN FIRST LVDS Receiver Signal (C-) 42 NC No Connection
17 R1CP FIRST LVDS Receiver Signal (C+) 43 NC No Connection
18 GND Ground 44 GND Ground
19 R1CLKN FIRST LVDS Receiver Clock Signal(-) 45 GND Ground
20 R1CLKP FIRST LVDS Receiver Clock Signal(+) 46 GND Ground
21 GND Ground 47 NC No connection
22 R1DN FIRST LVDS Receiver Signal (D-) 48 VLCD Power Supply +12.0V
23 R1DP FIRST LVDS Receiver Signal (D+) 49 VLCD Power Supply +12.0V
24 R1EN FIRST LVDS Receiver Signal (E-) 50 VLCD Power Supply +12.0V
25 R1EP FIRST LVDS Receiver Signal (E+) 51 VLCD Power Supply +12.0V
26 NC No Connection - - -
Note 1. All GND(ground) pins should be connected together to the LCD module's metal frame.
2. All VLCD (power input) pins should be connected together.
3. All Input levels of LVDS signals are based on the EIA 644 Standard.
4. Specific pins(pin No. #2~#6) are used for internal data process of the LCD module.
These pins should be no connection.
5. Specific pins(pin No. # 8~#10) are used for OPC function of the LCD module.
If not used, these pins are no connection. (Please see the Appendix III-4 for more information.)
6. LVDS pin (pin No. #24,25,40,41) are used for 10Bit(D) of the LCD module.
If used for 8Bit(R), these pins are no connection.
7. Specific pin No. #44 is used for "No signal detection" of system signal interface.
It should be GND for NSB(No Signal Black) during the system interface signal is not.
If this pin is "H", LCD Module displays AGP(Auto Generation Pattern).
Ver. 1.0 8 /41
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LC420WUN
Product Specification
3-2-2. Backlight Module
[ Master ]
-Inverter Connector : 20022WR-14B1(Yeonho)
or Equivalent
- Mating Connector : 20022HS-14 or Equivalent
Table 5. INVERTER CONNECTOR PIN CONFIGULATION
Pin No Symbol Description Master Note
1 VBL Power Supply +24.0V VBL
2 VBL Power Supply +24.0V VBL
3 VBL Power Supply +24.0V VBL
4 VBL Power Supply +24.0V VBL
5 VBL Power Supply +24.0V VBL
6 GND Backlight Ground GND
7 GND Backlight Ground GND
8 GND Backlight Ground GND 1
9 GND Backlight Ground GND
10 GND Backlight Ground GND
11 NC No Connection NC
12 VON/OFF Backlight ON/OFF control VON/OFF 3
13 EXTVBR-B External PWM EXTVBR-B 3
14 Status Lamp Status Status 2
Note 1. GND should be connected to the LCD module's metal frame.
2. Normal : Low (under 0.7V) / Abnormal : High (upper 3.0V)
Please see Appendix IV-1 for more information.
3. The impedance of pin #12 is over 50[K ] & the impedance of Pin #13 is over 100[K ].
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