KR20060011509A - 액정표시장치의 소스 드라이버 - Google Patents
액정표시장치의 소스 드라이버 Download PDFInfo
- Publication number
- KR20060011509A KR20060011509A KR1020040060389A KR20040060389A KR20060011509A KR 20060011509 A KR20060011509 A KR 20060011509A KR 1020040060389 A KR1020040060389 A KR 1020040060389A KR 20040060389 A KR20040060389 A KR 20040060389A KR 20060011509 A KR20060011509 A KR 20060011509A
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- Prior art keywords
- decoder
- voltage generator
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Analogue/Digital Conversion (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims (6)
- 각기 다른 M + N비트의 디지털 신호를 인가받아 아날로그신호로 변환하기 위한 복수의 디지털아날로그변환수단을 구비하여 액정패널의 L개 채널을 구동하는 TFT LCD 소스 드라이버에 있어서,상기 디지털아날로그변환수단은,직렬 연결된 2M개의 저항으로 구성되어, 2M개의 계조전압을 생성하기 위한 커스 계조전압 생성부;M비트의 디지털신호에 응답하여 상기 2M개의 계조전압 중 연속하는 두전압을 선택하여 출력하기 위한 제1 디코더;직렬 연결된 2N개의 저항으로 구성되어, 상기 제1 디코더의 출력전압을 입력으로 하여 2N개의 계조전압을 출력하기 위한 파인 계조전압 생성부; 및상기 N 비트의 디지털신호에 응답하여 상기 2N개의 계조전압 중 하나를 선택하여 상기 아날로그신호로 출력하기 위한 제2 디코더를 구비하되,상기 L개의 디지털아날로그변환수단은 상기 커스계조전압 생성부를 공유하고, 상기 제1 디코더와 상기 파인 계조전압 생성부는 단일이득앰프 없이 연결되며,상기 파인 계조전압 생성부의 저항값 Rch는을 가지며, 상기 R은 상기 커스계조전압 생성부의 저항값인 것을 특징으로 하는 액정표시장치의 소스드라이버.
- 제1항에 있어서,상기 커스계조전압 생성부의 저항값이 다양한 경우, 상기 R은 상기 다양한 저항값 중 가장 큰 경우인 것을 특징으로 하는 액정표시장치의 소스드라이버.
- 제2항에 있어서,상기 파인계조전압생성부 내 저항렬에서 상기 제1 디코더에 접속되는 두개의 저항 중 어느 하나의 저항값을 상기 제1 디코더 내 모든 스위치의 턴온 저항값과 합하여 상기 수식을 만족하도록 조절하는 것을 특징으로 하는 액정표시장치의 소스드라이버.
- M비트의 디지털신호 응답하여 2M개 계조전압 중 연속하는 두 전압을 선택하여 출력하기 위한 제1 디코더와, 직렬 연결된 2M개의 저항으로 구성되어 상기 제1 디코더의 출력전압을 입력으로 하여 2N개의 계조전압으로 출력하기 위한 파인 계조전압 생성부와, N 비트의 디지털신호에 응답하여 상기 파인 계조전압생성부의 출력전압 중 하나를 선택하여 출력하기 위한 제2 디코더를 구비하는 L개의 디지털아날로그변환수단; 및직렬 연결된 2M개의 저항으로 구성되어, 상기 2M개의 계조전압을 생성하기 위한 커스 계조전압 생성수단를 구비하고,상기 제1 디코더와 상기 파인계조전압 생성부가 단일이득앰프없이 연결되되,상기 파인 계조전압 생성부의 저항값 Rch는을 가지며, 상기 R은 상기 커스계조전압 생성부의 저항값인 것을 특징으로 하는 디지털아날로그변환장치.
- 제4항에 있어서,상기 커스계조전압 생성부의 저항값이 다양한 경우, 상기 R은 상기 다양한 저항값 중 가장 큰 경우인 것을 특징으로 하는 디지털아날로그변환장치.
- 제5항에 있어서,상기 파인계조전압생성부 내 저항렬에서 상기 제1 디코더에 접속되는 두개의 저항 중 어느 하나의 저항값을 상기 제1 디코더 내 모든 스위치의 턴온 저항값과 합하여 상기 수식을 만족하도록 조절하는 것을 특징으로 하는 디지털아날로그변환장치.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040060389A KR100588745B1 (ko) | 2004-07-30 | 2004-07-30 | 액정표시장치의 소스 드라이버 |
US11/073,168 US7425941B2 (en) | 2004-07-30 | 2005-03-04 | Source driver of liquid crystal display |
JP2005066844A JP5334353B2 (ja) | 2004-07-30 | 2005-03-10 | 液晶表示装置のソースドライバ |
TW094107602A TWI395183B (zh) | 2004-07-30 | 2005-03-11 | 液晶顯示器之源極驅動器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040060389A KR100588745B1 (ko) | 2004-07-30 | 2004-07-30 | 액정표시장치의 소스 드라이버 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060011509A true KR20060011509A (ko) | 2006-02-03 |
KR100588745B1 KR100588745B1 (ko) | 2006-06-12 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020040060389A KR100588745B1 (ko) | 2004-07-30 | 2004-07-30 | 액정표시장치의 소스 드라이버 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7425941B2 (ko) |
JP (1) | JP5334353B2 (ko) |
KR (1) | KR100588745B1 (ko) |
TW (1) | TWI395183B (ko) |
Cited By (7)
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KR100776489B1 (ko) * | 2006-02-09 | 2007-11-16 | 삼성에스디아이 주식회사 | 데이터 구동회로 및 그 구동방법 |
KR100822801B1 (ko) * | 2006-08-02 | 2008-04-18 | 삼성전자주식회사 | 디지털-아날로그 변환기 및 그것을 포함하는 소스 드라이버 |
KR100882673B1 (ko) * | 2007-03-08 | 2009-02-06 | 삼성모바일디스플레이주식회사 | 구동회로 및 이를 이용한 유기전계발광표시장치 |
US7944458B2 (en) | 2006-02-09 | 2011-05-17 | Samsung Mobile Display Co., Ltd. | Digital-analog converter, data driver, and flat panel display device using the same |
US7988567B2 (en) | 2007-07-12 | 2011-08-02 | Industrial Cooperation Foundation Chonbuk National University | Soft golf club head |
US8059140B2 (en) | 2006-02-09 | 2011-11-15 | Samsung Mobile DIsplay Co., Inc. | Data driver and flat panel display device using the same |
US8619013B2 (en) | 2006-01-20 | 2013-12-31 | Samsung Display Co., Ltd. | Digital-analog converter, data driver, and flat panel display device using the same |
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KR100658619B1 (ko) | 2004-10-08 | 2006-12-15 | 삼성에스디아이 주식회사 | 디지털/아날로그 컨버터와 이를 이용한 표시 장치 및 그표시 패널과 구동 방법 |
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-
2004
- 2004-07-30 KR KR1020040060389A patent/KR100588745B1/ko active IP Right Grant
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2005
- 2005-03-04 US US11/073,168 patent/US7425941B2/en active Active
- 2005-03-10 JP JP2005066844A patent/JP5334353B2/ja active Active
- 2005-03-11 TW TW094107602A patent/TWI395183B/zh active
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8619013B2 (en) | 2006-01-20 | 2013-12-31 | Samsung Display Co., Ltd. | Digital-analog converter, data driver, and flat panel display device using the same |
KR100776489B1 (ko) * | 2006-02-09 | 2007-11-16 | 삼성에스디아이 주식회사 | 데이터 구동회로 및 그 구동방법 |
US7944458B2 (en) | 2006-02-09 | 2011-05-17 | Samsung Mobile Display Co., Ltd. | Digital-analog converter, data driver, and flat panel display device using the same |
US8059140B2 (en) | 2006-02-09 | 2011-11-15 | Samsung Mobile DIsplay Co., Inc. | Data driver and flat panel display device using the same |
KR100822801B1 (ko) * | 2006-08-02 | 2008-04-18 | 삼성전자주식회사 | 디지털-아날로그 변환기 및 그것을 포함하는 소스 드라이버 |
US7453386B2 (en) | 2006-08-02 | 2008-11-18 | Samsung Electronics Co., Ltd. | Digital to analog converter and source driver |
KR100882673B1 (ko) * | 2007-03-08 | 2009-02-06 | 삼성모바일디스플레이주식회사 | 구동회로 및 이를 이용한 유기전계발광표시장치 |
US8054256B2 (en) | 2007-03-08 | 2011-11-08 | Samsung Mobile Display Co., Ltd. | Driving circuit and organic light emitting display using the same |
US7988567B2 (en) | 2007-07-12 | 2011-08-02 | Industrial Cooperation Foundation Chonbuk National University | Soft golf club head |
Also Published As
Publication number | Publication date |
---|---|
KR100588745B1 (ko) | 2006-06-12 |
TWI395183B (zh) | 2013-05-01 |
US20060023001A1 (en) | 2006-02-02 |
TW200605011A (en) | 2006-02-01 |
JP5334353B2 (ja) | 2013-11-06 |
US7425941B2 (en) | 2008-09-16 |
JP2006047969A (ja) | 2006-02-16 |
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