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LD420DUE
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Preliminary Specification
( ) Final Specification
Title 42.0" WUXGA TFT LCD
BUYER General SUPPLIER LG Display Co., Ltd.
MODEL *MODEL LD420DUE
SUFFIX SFR1 (RoHS Verified)
*When you obtain standard approval,
please use the above model name without suffix
SIGNATURE SIGNATURE
APPROVED BY APPROVED BY
DATE DATE
K. S. Nah
/ / Chief Senior Engineer
REVIEWED BY
M.J. Lee
/ / Chief Senior Engineer
PREPARED BY
K.B. Park
/ / Senior Engineer
Please return 1 copy for your confirmation with PD Product Design Dept.
your signature and comments. LG Display Co., Ltd
Ver. 0.0 1 / 36
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LD420DUE
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 SIGNAL TIMING WAVEFORMS 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 DESIGNATION OF LOT MARK 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. 0.0 2 / 36
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LD420DUE
Product Specification
RECORD OF REVISIONS
Revision No. Revision Date Page Description
0.0 Nov, 12, 2012 - Preliminary Specification (First Draft)
Ver. 0.0 3 / 36
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LD420DUE
Product Specification
1. General Description
The LD420DUE is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)
b ac k l i g ht s ys t em . T he m a t r i x em p l o ys a - S i T h i n F i lm T r an s is t or a s t he a c t i v e e l em en t .
It is a transmissive display type which is operating in the normally black mode. It has a 41.92 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 8-bit gray scale signal for each dot.
Therefore, it can present a palette of more than 16.7Million colors.
It has been designed to apply the 8-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.
EPI(RGB)
EEPROM
Source Driver Circuit
SCL SDA S1 S1920
G1
LVDS
LVDS 1,2 Timing Controller
2Port
LVDS Rx + DGA
LVDS Option Integrated Control TFT - LCD Panel
Select signal Signals (1920 RGB 1080 pixels)
CN1
(51pin) [Gate In Panel]
I2C
+12.0V
Power Circuit Power Signals G1080
Block
LED Anode
LED Cathode
CN201 (7pin) Back light Assembly
LED Anode
LED Cathode
General Features
Active Screen Size 41.92 inches(1064.67mm) diagonal
Outline Dimension 958.2(H) X 555.8(V) X 35.0(B) mm (Typ.)
Pixel Pitch 0.4833 mm x 0.4833 mm
Pixel Format 1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement
Color Depth 8bit, 16.7Million colors
Luminance, White 400 cd/m2 (Center 1point ,Typ.)
Viewing Angle (CR>10) Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))
Power Consumption Total 54.85W(TBD) [Logic= 6.4W(TBD), LED Backlight=48.45W (IF_cathode=285mA))
Weight 6.3 kg (TBD.)
Display Mode Transmissive mode, Normally black
Surface Treatment Hard coating(3H), Anti-reflection treatment of the front polarizer (Haze 1%)
Possible Display Type Landscape and Portrait Enabled
Ver. 0.0 4 / 36
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LD420DUE
Product Specification
2. Absolute Maximum Ratings
The following items are maximum values which, if exceeded, may cause faulty operation or permanent damage
to the LCD module.
Table 1. ABSOLUTE MAXIMUM RATINGS
Value
Parameter Symbol Unit Note
Min Max
Power Input Voltage LCD Circuit VLCD -0.3 +14.0 VDC
VF1 - +127(TBD) 1
LED Input Voltage Forward Voltage VDC
VF2 +83(TBD)
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
Note 1. 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 be 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. 0.0 5 / 36
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LD420DUE
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 LED
backlight .
Table 2. ELECTRICAL CHARACTERISTICS
Value
Parameter Symbol Unit Note
Min Typ Max
Circuit :
Power Input Voltage VLCD 10.8 12.0 13.2 VDC
- 530(TBD) 690(TBD) mA 1
Power Input Current ILCD
- 770(TBD) 1000(TBD) mA 2
Power Consumption PLCD 6.4(TBD) 8.3(TBD) 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, and mosaic pattern(8 x 6) is displayed and f V 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.).
4. Ripple voltage level is recommended under 5% of typical voltage
White : 255 Gray
Black : 0 Gray
Mosaic Pattern(8 x 6)
Ver. 0.0 6 / 36
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LD420DUE
Product Specification
Table 3. ELECTRICAL CHARACTERISTICS (Continue)
Values
Parameter Symbol Unit Note
Min Typ Max
Backlight Assembly :
Forward Current Anode IF (anode) 285 mAdc 5%
(one array) Cathode IF (cathode) 271 285 299 mAdc 2, 3
VF1 93(TBD) 102(TBD) 111(TBD)
Forward Voltage Vdc 4
VF2 62(TBD) 68(TBD) 74(TBD)
Power Consumption PBL - 48.45 54.15 W 5
Burst Dimming Duty On duty 1 100 %
Burst Dimming Frequency 1/T 95 182 Hz 7
LED Array : (APPENDIX-V)
Life Time 30,000 Hrs 6
The design of the LED driver must have specifications for the LED array in LCD Assembly.
Notes :
The electrical characteristics of LED driver are based on Constant Current driving type.
The performance of the LED in LCM, for example life time or brightness, is extremely influenced by the
characteristics of the LED Driver. So, all the parameters of an LED driver should be carefully designed.
When you design or order the LED driver, please make sure unwanted lighting caused by the mismatch of the
LED and the driver (no lighting, flicker, etc) has never been occurred. When you confirm it, the LCD