Document
Product Specification
SPECIFICATION FOR
APPROVAL
LP121WX4 Liquid Crystal Display
( ● ) Preliminary Specification ( ) Final Specification
Title
Customer MODEL
Panasonic
12.1” WXGA TFT LCD
SUPPLIER
LG Display Co., Ltd.
*MODEL
LP121WX4
Suffix
TLA1
*When you obtain standard approval, please use the above model name without suffix
APPROVED BY / / /
SIGNATURE
Please return 1 copy for your confirmation with your signature and comments.
APPROVED BY
SIGNATURE
H. S. Kim / G.Manager
REVIEWED BY C. I. Kim / Manager
PREPARED BY C. H. Cho / Engineer S. C. Jung / Engineer
Products Engineering Dept. LG Display Co., Ltd
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Mar. 23, 2010
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Product Specification
Contents
No
COVER CONTENTS
ITEM
RECORD OF REVISIONS
1 GENERAL DESCRIPTION 2 ABSOLUTE MAXIMUM RATINGS
3 ELECTRICAL SPECIFICATIONS
3-1 ELECTRICAL CHARACTREISTICS
3-2 INTERFACE CONNECTIONS 3-3 LVDS SIGNAL TIMING SPECIFICATIONS
3-4 SIGNAL TIMING SPECIFICATIONS
3-5 SIGNAL TIMING WAVEFORMS 3-6 COLOR INPUT DATA REFERNECE
3-7 POWER SEQUENCE 4 OPTICAL SFECIFICATIONS 5 MECHANICAL CHARACTERISTICS
6 RELIABLITY 7 INTERNATIONAL STANDARDS
7-1 SAFETY
7-2 EMC 8 PACKING
8-1 DESIGNATION OF LOT MARK
8-2 PACKING FORM 9 PRECAUTIONS
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LP121WX4 Liquid Crystal Display
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Product Specification
RECORD OF REVISIONS
Revision No Revision Date Page
Description
0.0
Mar. 23. 2010
- First Draft (Preliminary Specification)
LP121WX4 Liquid Crystal Display
EDID ver
X
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Product Specification
LP121WX4 Liquid Crystal Display
1. General Description
The LP121WX4 is a Color Active Matrix Liquid Crystal Display with an integral LED backlight system. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in the normally white mode. This TFT-LCD has 12.1 inches diagonally measured active display area with WXGA resolution (1280 horizontal by 800 vertical pixel array). 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 6-bit gray scale signal for each dot, thus, presenting a palette of more than 262,144 colors. The LP121WX4 has been designed to apply the interface method that enables low power, high speed, low EMI. The LP121WX4 is intended to support applications where thin thickness, low power are critical factors and graphic displays are important. In combination with the vertical arrangement of the sub-pixels, the LP121WX4 characteristics provide an excellent flat display for office automation products such as Notebook PC.
LVDS 1port VCC
Timing Control (Tcon) BlocTkCLKs DVCC
Power Block
Mini-LVDS
DVCC, AVDD VGH, VGL, GMA
GIP CLKs, DSC
1
Source Driver (Top Bent)
1280
User connector Pin
EEPROM Block
40 for EDID
TFT-LCD Panel (WXGA, GIP, TN)
VLED
SMBus LED_EN
PWM
LED Driver Block
VOUT_LED FB1~6
800
LED Backlight Ass’y
Control & Data
Power
EDID signal & Power
General Features
Active Screen Size Outline Dimension Pixel Pitch Pixel Format Color Depth Luminance, White Power Consumption Weight Display Operating Mode Surface Treatment RoHS / Low Halogen Comply BFR / PVC /As Free
12.1 inches diagonal 270.6(H,Typ.) × 187.5(V,Typ.) × 2.95(D,Max.) [mm] 0.2028mm × 0.2028 mm 1280 horiz. By 800 vert. Pixels RGB strip arrangement 6-bit, 262,144 colors 250 cd/m2(Typ.5 point) Total 3.8 Watt(Typ.) @ LCM circuit 0.9 Watt (Typ._Mosaic), B/L 2.9Watt(Typ.) 145g(Typ.) Transmissive mode, normally white Anti-Glare treatment of the front polarizer Yes Yes of all
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Product Specification
LP121WX4 Liquid Crystal Display
2. Absolute Maximum Ratings
The following are maximum values which, if exceeded, may cause faulty operation or damage to the unit.
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter
Power Input Voltage Operating Temperature Storage Temperature Operating Ambient Humidity Storage Humidity
Symbol
VCC TOP HST HOP HST
Values Min Max -0.3 4.0
0 50 -20 60 10 90 10 90
Units
Vdc °C °C %RH %RH
Notes
at 25 ± 5°C 1 1 1 1
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.
90% 80%
60 60%
Wet Bulb Temperature [℃]
50
40
30
20 10 0
40%
20% 10%
-20 0 10 20 30 40 50 60 70 80
Dry Bulb Temperature [℃]
Humidity[(%)RH]
Storage Operation
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Product Specification
LP121WX4 Liquid Crystal Display
3. Electrical Specifications
3-1. Electrical Characteristics
The LP121WX4 requires two power inputs. The first logic is employed to power the LCD electronics and to drive the TFT array and liquid crystal. The second backlight is the input about LED BL with LED Driver.
Table 2. ELECTRICAL CHARACTERISTICS
Parameter
LOGIC : Power Supply Input Voltage Power Supply Input Current White Power Consumption Power Supply.