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LC420EUA
Engineering Specification
LCM ENGINEERING
SPECIFICATION
*MODEL LC420EUA
SUFFIX AEM1
Update Dec.15, 2011
( ) Preliminary Specification
( ) Final Specification
Ver. 0.1 1 /31
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LC420EUA
Engineering 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 9
3-3 SIGNAL TIMING SPECIFICATIONS 12
3-4 Panel Pixel Structure 15
3-5 POWER SEQUENCE 16
4 OPTICAL SPECIFICATIONS 19
5 MECHANICAL CHARACTERISTICS 22
6 RELIABILITY 25
7 INTERNATIONAL STANDARDS 26
7-1 SAFETY 26
7-2 ENVIRONMENT 26
8 PRECAUTIONS 27
8-1 MOUNTING PRECAUTIONS 27
8-2 OPERATING PRECAUTIONS 27
8-3 ELECTROSTATIC DISCHARGE CONTROL 28
8-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE 28
8-5 STORAGE 28
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LC420EUA
Engineering Specification
RECORD OF REVISIONS
Revision No. Revision Date Page Description
0.1 Oct 07, 2011 - Preliminary Specification (First Draft)
1.0 Dec.15,2011 4 Power consumption(Total & LED Driver) is corrected
4 Outline Dimension is corrected
6 Electrical Characteristics are corrected
13 SOE Width & Timing is corrected
17 Optical characteristics are corrected
22,23 Mechanical drawing is corrected
28 Cancel US patent
- Final Specification
Ver. 0.1 3 /31
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LC420EUA
Engineering Specification
1. General Description
The LC420EUA is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)
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 42.02inch 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 1.67M(ture) colors.
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.
PWM_OUT Scanning Block 1
1~3
LED Driver Scanning Block 2
+24.0V, GND, On/Off
Scanning Block 3
General Features
Active Screen Size 42.02inches(1067.31mm) diagonal
Outline Dimension 960.4(H) 560.4(V)X23.1mm(D) (Typ.)
Pixel Pitch 0.4845 mm x 0.4845 mm
Pixel Format 1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement
Color Depth 8bit, 16.7 Million colors
Luminance, White 360 cd/m2 (Center 1point ,Typ.)
Viewing Angle (CR>10) Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))
Power Consumption Total 54.1W(TBD) (Typ.) [Logic=8.6W(TBD) , LED Driver=45.5W(ExtVbr_B=100% )]
Weight 7.0(TBD) Kg (Typ.)
Display Mode Transmissive mode, Normally black
Surface Treatment Hard coating(2H), Anti-glare treatment of the front polarizer (Haze 10%)
Ver. 0.1 4 /31
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LC420EUA
Engineering 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
Logic&EPI Power Voltage VCC -0.5 +2.2 VDC
Gate High Voltage VGH +18.0 +30.0 VDC
Gate Low Voltage VGL -8.0 -4.0 VDC
1
Source D-IC Analog Voltage VDD -0.3 +18.0 VDC
Gamma Ref. Voltage (Upper) VGMH