- 41 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
ʹΠΡΪΣΚΘΙΥ͑ι ͣͨ͑͡͡ͽ͑ͶΝΖΔΥΣΠΟΚΔΤ͑͟ͺΟΔ͑͑͟ͲΝΝ͑ΣΚΘΙΥ͑ΣΖΤΖΣΧΖΕ͑͟
ΟΝΪ͑ΗΠΣ͑ΥΣΒΚΟΚΟΘ͑ΒΟΕ͑ΤΖΣΧΚΔΖ͑ΡΦΣΡΠΤΖΤ
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
40/140
3.8 LCD Interface
Figure 3.8.1. LCD Interface
The LG4515 is a 262,144-color one-chip controller driver LSI for a TFT liquid crystal display with resolution
of 128 RGB x 160 dots, comprising a 384-channel source driver, RAM for graphics data of 128 RGB x 160
dots at maximum, a gate driver and a power supply circuit.
The LG4515 supports high-speed parallel interfaces to 8-, 9-, 16-, 18-bit ports and a function to write RAM
data in high speed for transferring data efficiently and rewriting RAM graphics data in high speed.
The LG4515 can operate with low I/O interface power supply up to 1.65V, with an incorporated voltage
follower circuit to generate voltage levels for driving an LCD. The LG4515 also supports a function to
display in 8 colors and a standby mode, allowing for precise power control by software. These features
make the LG4515 an ideal LCD driver for medium or small sized portable products supporting WWW
browsers such as digital cellular phones or small PDAs, where long battery life is a major concern.
3. TECHNICAL BRIEF
82K
R401
R444
100ohms
C440
15pF
15pF
C439
C437
15pF
C436
15pF
15pF
C435
15pF
C434
R443
100ohms
100ohms
R442
R441
100ohms
R439
100ohms
100ohms
R438
KTK5132E
EQFN0005601
Q402
D
G
S
R437
100ohms
R436
100ohms
R435
100ohms
R434
100ohms
100ohms
R433
R432
100ohms
15pF
C433
C432
15pF
C431
15pF
C430
15pF
1V8_VDD
VAUX
C421
15pF
C420
15pF
1u
C416
VAUX
VAUX
R462
100K
R407
47K
1u
C423
DNI
R463
4.7K
R404
K7
4
50
4
R
GF032-35S-E2000
ENQY0014901
CN401
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
NLCD_RESET
MLED2
MLED1
LCD_ID
MLED
LCD_RS
L_MAIN_LCD_CS
L_DATA00
L_DATA01
L_DATA02
L_DATA03
L_DATA04
L_DATA05
L_DATA06
L_DATA07
LCD_WR
VSYNC
(IF_MODE1)
IOVCC
(IF_MODE2)
Содержание GS155
Страница 1: ...Service Manual Model GS155 Internal Use Only Service Manual GS155 Date February 2010 Issue 1 0 ...
Страница 101: ... 102 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 111: ... 112 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...