Lcd Interface - LG -T300 Service Manual

3. TECHNICAL BRIEF

3.9 LCD Interface

1V8_VDD
LCD_IF
R335
100K
The LH240Q40-SD14 model is a Color TFT (Main) LCD supplied by LG Display.
This main LCD has a 2.4 inch diagonally measured active display area with 240x(RGB)x320 resolution.
Each pixel is divided into Red, Green and Blue sub-pixels and dots which are arranged in vertical stripes.
Main LCD color is determined with 262K colors signal for each pixel.
The LH240Q40-SD14 has been designed to apply the interface method that enables low power, high
speed, and high contrast.
The LH240Q40-SD14 is intended to support applications where thin thickness, wide viewing angle
and low power consumption are critical factors and graphic displays are important.
LGE Internal Use Only
B TO B INTERFACE
15pF
LCD_VSYNC
INOUT_A4 INOUT_B4
4
LCD_nWR
INOUT_A3 INOUT_B3
3
LCD_CD
INOUT_A2 INOUT_B2
2
LCD_nCS
INOUT_A1 INOUT_B1
1
FL303
15pF
LCD_DATA07
INOUT_A4 INOUT_B4
4
LCD_DATA06
INOUT_A3 INOUT_B3
3
LCD_DATA05
INOUT_A2 INOUT_B2
2
LCD_DATA04
INOUT_A1 INOUT_B1
1
FL302
15pF
LCD_DATA03
INOUT_A4 INOUT_B4
4
LCD_DATA02
INOUT_A3 INOUT_B3
3
LCD_DATA01
INOUT_A2 INOUT_B2
2
LCD_DATA00
INOUT_A1 INOUT_B1
1
FL301
LCD_ID
LCD_nRESET
Figure 3-9-1. LCD Interface of LCD FPCB
3. TECHNICAL BRIEF
LED_PWM
LCD_IF
6
TP304
7
TP303
8
TP302
9
6
7
8
9
6
7
MLED5
8
TP301
MLED4
9
VBAT
MLED3
MLED2
MLED1
R323
100
VA306
C309
C338
2.2u
0.1u
- 46 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
1V8_VDD VMMC
TP305
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2
1
CN303
C308 C307
1u
1u
ZD301
Only for training and service purposes