精品-液晶显示器驱动IC原理和介绍.pdf

文档介绍：液晶顯示器驅動IC原理和介紹
主講人: 黃雲朋
Content
I. 液晶驅動原理介紹
II. STN LCD Driver Introduction
III. STN Case Study
VI. TFT LCD Driver Introduction
V. TFT Driver IC Consideration
I. 液晶驅動原理介紹
液晶驅動原理
Field OFF Field ON
Twist Nematic (TN)



Field OFF Field ON
TN & STN V-T Transfer Curve
STN T
DV2
TN
V
DV1
PS: TN more suitable for more gray levels
STN for black & white
LCD 靜態驅動法
Vsig Vs
LC Cell
Vc
ON OFF ON
Vsig
Vc
Vs
Vc - Vs
II. STN LCD Driver introduction
Mobile Phone Market Forecast
Mobile Phone
Msets
600
500
400
STN Mono
300
STN Color
200 LTPS Color
100
0
2000 2001 2002 2003
STN PDA Market Forecast
PDA
Ksets
12000
10000
8000
6000 STN Mono
STN Color
4000
2000
0
2000 2001 2002 2003
STN LCD Driver Introduction
Segment Driver

Common mon
STN LCD Driver Block
mon Driver STN Segment Driver
EI/O Shift Register EO/I EI/O Shift Register EO/I
Dcl Dcl
k k
D0~D8 Data Latch
LP Data Latch
VEE Output Stage V1~V4 Output Stage
Vss
To mon To STN segme