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SPECIFICATION For APPROVAL
( (
) Preliminary Specification ) Final Specification
Title
BUYER NAME MODEL NAME
12.1” SVGA TFT LCD
SUPPLIER MODEL NAME LG Electronics, Inc. LP121SQ
SIGNATURE /
DATE
APPROVED BY H.YOON /G. Manager REVIEWED BY
DATE
/
H.K.LEE /S. Engineer PREPARED BY
/ Please return 1 copy for our confirmation with your signature and comments.
J.D.KIM /A. Engineer Product Engineering Dept. LCD Division LG Electronics, Inc.
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TABLE of CONTENTS
NO.
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16 -
ITEM
COVER TABLE of CONTENTS RECORD of REVISION GENERAL DESCRIPTION MAXIMUM RATINGS ELECTRICAL SPECIFICATIONS OPTICAL SPECIFICATIONS INTERFACE CONNECTIONS SIGNAL TIMING SPECIFICATIONS SIGNAL TIMING WAVE FORMS COLOR INPUT DATA REFERENCE POWER SEQUENCE MECHANICAL CHARACTERISTICS COSMETICS RELIABILITY INTERNATIONAL STANDARDS DESIGNATION OF LOT MARK PACKING FORM HANDLING PRECAUTIONS APPENDIX
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Record of Revision
DATE AND VERSION Oct.17,1996 (Ver.1.1) DESCRIPTION 3. Table 2 Input Current 450 --> 510mA 550--->600mA 6. tHP 1020 --> 990 Dec.02,1996 (Ver.1.2) 6. Signal Timing spec. Vsync period tVP : 603 --> 604 1000--> 825 Dec.10,1996 (Ver.1.3) 5. Interface Connections 4 RCL- ---> RCL+ 6 RCL+ ---> RCL6. Signal Timing spec. Vsync period tVP : 825 --> 730 Jan.23,1997 (Ver.1.4) 5. Interface Connections DF15B-20DS-0.65V --> WR-L40S-VF-1 HIROSE 20 PIN JAE 40 PIN
Configuration : 20PIN --> 40PIN 6. Signal Timing Spec. Vsync period tVP : 604 --> 603
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1. General Description
The LG Electronics model LP121SQ LCD is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent Tube(CCFT) back light 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 a 12.1 inch diagonally measured active display area with SVGA resolution(600 vertical by 800 horizontal 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 LP121SQ LCD is intended to support applications where low power consumption, weight and thickness are critical factors and graphic displays are important. In combination with the vertical arrangement of the sub-pixels, the LP121SQ characteristics provide an excellent flat panel display for office automation products such as portable computers.
LP121SQ BLOCK DIAGRAM
POWER (VDD,D GND AVCC,AGND)
D1
SOURCE DRIVE CIRCUIT
D2 D2399 D2400
PANEL LINK INTERFACE
RX0(+,-)
POWER SUPPLY
G1 G2
RX1(+,-) RX2(+,-) RXC(+,-)
GATE DRIVE CIRCUIT
G599 G600
TFT - LCD (800X3X600)
TIMING CONTROLLER
INPUT CONNECTOR (40 PIN)
TO SOURCE DRIVE CIRCUIT
VBL LAMP
CN2
GND
General Display Characteristics
The following are general feature of the model LP121SQ LCD; Active display area Outsize dimensions Pixel pitch Pixel format Color depth Display operating mode Surface treatments 12.1 inches(30.75cm) diagonal 275W * 197H * 6T mm 0.3075mm * 0.3075mm 800 horiz. By 600 vert. pixels RGB stripe arrangement 6-bit transmissive mode, normally white hard coating(2H), anti-glare treatment of the front polarizer
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2. 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 Logic Input Voltage Operating Temperature symbol Min. VDD VL/H TOP 0 -0.3 3 Values Max. +3.63 VDD+0.3 +50 Vdc Vdc • at 25• at 25• 1 1 Units Notes
• Storage Temperature TST -10 +60 Note: 1. The Relative Humidity must not exceed 80% non-condensing at temperatures of 40• or less. At temperatures greater than 40•, the wet bulb temperature must not exceed 39•. At low temperature the brightness of CCFL drop and the life time of CCFL become to be short. 2. Under no condition should the unit be exposed to corrosive chemicals.
3. Electrical Specifications
The LP104S3 requires two power inputs. One is employed to power the LCD electronics and to derive the voltages to drive the TFT array and liquid crystal. The second input which powers the backlight CCFT, is typically generated by an inverter. The inverter is an external unit to the LCD. Table 2 ELECTRICAL CHARACTERISTICS: Parameter MODULE:(Receiver 101) Power Supply Input Voltage Power Supply Input Current Ripple/Noise Logic Input Level, High Logic Input Level, Low Differential Input Voltage(swing) BACKLIGHT Backlight Input voltage Backlight Current Lamp Kick-Off Voltage VBL IBL 635 2.0 705 3.0 730 4.0 1280 VRMS mA VRMS 0±2• 3 VDD IDD VIH VIL .