KR20060112328A - 액정표시장치의 구동회로 및 구동방법 - Google Patents
액정표시장치의 구동회로 및 구동방법 Download PDFInfo
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- KR20060112328A KR20060112328A KR1020050034619A KR20050034619A KR20060112328A KR 20060112328 A KR20060112328 A KR 20060112328A KR 1020050034619 A KR1020050034619 A KR 1020050034619A KR 20050034619 A KR20050034619 A KR 20050034619A KR 20060112328 A KR20060112328 A KR 20060112328A
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- switch
- capacitor
- signal voltage
- liquid crystal
- crystal display
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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
- 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
-
- 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
- G09G2310/0243—Details of the generation of driving signals
- G09G2310/0248—Precharge or discharge of column electrodes before or after applying exact column voltages
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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
-
- 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
- G09G2310/0291—Details of output amplifiers or buffers arranged for use in a driving circuit
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0252—Improving the response speed
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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
- G09G3/3614—Control of polarity reversal in general
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims (6)
- 신호 전압을 버퍼링하여 전송라인으로 싣기 위한 단일이득 연산 증폭기;상기 단일이득 연산 증폭기의 비반전 단자와 상기 신호 전압 입력 라인의 연결을 스위칭하는 제1 스위치;일단이 상기 신호 전압 입력 라인에 연결되는 제2 스위치;일단이 상기 단일이득 연산 증폭기의 비반전 단자에 연결되는 제3 스위치;일단이 상기 제3 스위치의 타단에 연결되며, 타단이 상기 제2 스위치의 타단에 연결되는 제1 커패시터;일단이 제1 커패시터의 타단에 연결되며, 타단이 접지전압단에 연결되는 제2 커패시터를 포함하는 액정표시장치 구동회로.
- 제1항에 있어서,상기 단일이득 연산 증폭기가 동작하지 않을때 상기 단일 이득 증폭기와 전송라인의 연결을 턴오프하기 위한 절전 스위치를 더 포함하는 액정표시장치 구동회로.
- 제1항에 있어서,소정 시간 제1 스위치 및 제3 스위치를 턴온시키고 제2 스위치를 턴오프시키는 단계;소정 시간 제1 스위치를 턴오프시키고 제2 스위치 및 제3 스위치를 턴온시키는 단계;소정 시간 제1 스위치 및 제2 스위치를 턴온시키고 제3 스위치를 턴오프시키는 단계;소정 시간 제1 스위치 내지 제3 스위치를 턴온시키는 단계를 수행하는 스위치 제어부를 더 포함하는 액정표시장치 구동회로.
- 제1항 내지 제3항 중 어느 한 항에 있어서,상기 제1 커패시터 및 상기 제2 스위치의 연결지점과 상기 제1 스위치의 일단에 연결되는 제4 스위치를 더 포함하는 액정표시장치 구동회로.
- 입력받은 영상 신호 전압을, 구동 버퍼 및 커패시터를 사용하여 버퍼링하여, 전송 라인을 통하여 디스플레이 패널에 출력하는 액정표시장치 구동방법에 있어서,상기 구동 버퍼가 상기 영상 신호 전압을 출력할 때, 상기 출력 영상 신호 전압의 일부를 선-강조 전압으로서 상기 커패시터에 저장하는 단계(S210);상기 커패시터에 저장된 선-강조 전압을 상기 입력 영상 신호 전압에 가하고, 상기 선-강조 전압이 가해진 상기 입력 영상 신호 전압을 버퍼링하여 출력하는 단계(S220);상기 선-강조 전압이 제거된 상기 입력 영상 신호 전압만을 증폭시켜 출력하는 단계(S230); 및상기 커패시터에 충전된 전하를 제거하는 단계(S240)를 포함하는 액정표시장치 구동방법.
- 제5항에 있어서,상기 S210 단계는, 스캔 기간의 시작을 알리는 신호가 활성화된 후부터 상기 커패시터에 선-강조 전압을 위한 전하가 모이기에 충분한 시간동안 수행되며,상기 S240 단계는, 상기 디스플레이 패널에 요망하는 영상이 표시되기에 충분한 시간이 경과한 스캔 기간의 완료 직전부터, 다음 스캔 라인에 대한 S120 단계가 시작되기 전까지 수행되는 액정표시장치의 구동방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020050034619A KR100670494B1 (ko) | 2005-04-26 | 2005-04-26 | 액정표시장치의 구동회로 및 구동방법 |
JP2006120699A JP4953228B2 (ja) | 2005-04-26 | 2006-04-25 | 液晶表示装置の駆動回路及び駆動方法 |
US11/410,097 US7990351B2 (en) | 2005-04-26 | 2006-04-25 | Driving circuit for liquid crystal display device |
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KR1020050034619A KR100670494B1 (ko) | 2005-04-26 | 2005-04-26 | 액정표시장치의 구동회로 및 구동방법 |
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KR20060112328A true KR20060112328A (ko) | 2006-11-01 |
KR100670494B1 KR100670494B1 (ko) | 2007-01-16 |
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US (1) | US7990351B2 (ko) |
JP (1) | JP4953228B2 (ko) |
KR (1) | KR100670494B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9858883B2 (en) | 2014-07-14 | 2018-01-02 | Samsung Electronics Co., Ltd. | Display driver IC for driving with high speed and controlling method thereof |
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JP4798753B2 (ja) * | 2005-02-28 | 2011-10-19 | ルネサスエレクトロニクス株式会社 | 表示制御回路および表示制御方法 |
TWI381343B (zh) * | 2007-03-23 | 2013-01-01 | Himax Tech Ltd | 顯示裝置及其閘極驅動器 |
KR101409514B1 (ko) * | 2007-06-05 | 2014-06-19 | 엘지디스플레이 주식회사 | 액정표시장치와 그의 구동방법 |
JP4960943B2 (ja) * | 2007-10-10 | 2012-06-27 | アナパス・インコーポレーテッド | 信号の歪曲及び/又は電力消耗を減少させることができるディスプレイ駆動装置及びこれを含むディスプレイ装置 |
KR101416904B1 (ko) * | 2007-11-07 | 2014-07-09 | 엘지디스플레이 주식회사 | 유기전계발광 표시장치의 화소 구동 장치 |
KR20100123138A (ko) * | 2009-05-14 | 2010-11-24 | 삼성전자주식회사 | 디스플레이 장치 |
US8963904B2 (en) * | 2010-03-22 | 2015-02-24 | Apple Inc. | Clock feedthrough and crosstalk reduction method |
JP5496940B2 (ja) * | 2010-08-11 | 2014-05-21 | アンリツ株式会社 | エンファシス付加装置及びエンファシス付加方法 |
TWI400464B (zh) * | 2011-02-11 | 2013-07-01 | Etron Technology Inc | 具有外部測試電壓的電路 |
KR20120094722A (ko) * | 2011-02-17 | 2012-08-27 | 삼성디스플레이 주식회사 | 화상 표시장치 및 그의 구동방법 |
CN107749273B (zh) | 2017-11-07 | 2019-10-15 | 京东方科技集团股份有限公司 | 电信号检测模组、驱动方法、像素电路和显示装置 |
US11250780B2 (en) | 2019-08-15 | 2022-02-15 | Samsung Display Co., Ltd. | Estimation of pixel compensation coefficients by adaptation |
US11069282B2 (en) | 2019-08-15 | 2021-07-20 | Samsung Display Co., Ltd. | Correlated double sampling pixel sensing front end |
US11087656B2 (en) | 2019-08-15 | 2021-08-10 | Samsung Display Co., Ltd. | Fully differential front end for sensing |
US11081064B1 (en) | 2020-01-13 | 2021-08-03 | Samsung Display Co., Ltd. | Reference signal generation by reusing the driver circuit |
US11257416B2 (en) | 2020-02-14 | 2022-02-22 | Samsung Display Co., Ltd. | Voltage mode pre-emphasis with floating phase |
US11719738B2 (en) | 2020-10-15 | 2023-08-08 | Samsung Display Co., Ltd. | Two-domain two-stage sensing front-end circuits and systems |
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JP2969699B2 (ja) * | 1989-11-28 | 1999-11-02 | ソニー株式会社 | 液晶ディスプレイ装置 |
JPH05297830A (ja) * | 1992-04-20 | 1993-11-12 | Fujitsu Ltd | アクティブマトリックス液晶駆動方法及び回路 |
KR100692289B1 (ko) * | 2000-02-10 | 2007-03-09 | 가부시키가이샤 히타치세이사쿠쇼 | 화상표시장치 |
US6724251B1 (en) * | 2002-09-12 | 2004-04-20 | National Semiconductor Corp. | Apparatus and method for employing gain dependent biasing to reduce offset and noise in a current conveyor type amplifier |
KR100522855B1 (ko) * | 2002-12-03 | 2005-10-24 | 학교법인 한양학원 | 대면적 고해상도 액정표시장치의 구동방법 및 구동회로 |
JP2005070627A (ja) | 2003-08-27 | 2005-03-17 | Nec Kansai Ltd | 液晶駆動装置およびその制御方法 |
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- 2006-04-25 JP JP2006120699A patent/JP4953228B2/ja active Active
- 2006-04-25 US US11/410,097 patent/US7990351B2/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9858883B2 (en) | 2014-07-14 | 2018-01-02 | Samsung Electronics Co., Ltd. | Display driver IC for driving with high speed and controlling method thereof |
Also Published As
Publication number | Publication date |
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US7990351B2 (en) | 2011-08-02 |
JP4953228B2 (ja) | 2012-06-13 |
JP2006309232A (ja) | 2006-11-09 |
KR100670494B1 (ko) | 2007-01-16 |
US20060238477A1 (en) | 2006-10-26 |
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