KR970067069A - 액티브매트릭스 액정디스플레이의 구동회로 - Google Patents

액티브매트릭스 액정디스플레이의 구동회로 Download PDF

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Publication number
KR970067069A
KR970067069A KR1019960005554A KR19960005554A KR970067069A KR 970067069 A KR970067069 A KR 970067069A KR 1019960005554 A KR1019960005554 A KR 1019960005554A KR 19960005554 A KR19960005554 A KR 19960005554A KR 970067069 A KR970067069 A KR 970067069A
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KR
South Korea
Prior art keywords
signal
thin film
driving circuit
line
film transistor
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Application number
KR1019960005554A
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English (en)
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KR100205259B1 (ko
Inventor
여주천
Original Assignee
구자홍
Lg 전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 구자홍, Lg 전자 주식회사 filed Critical 구자홍
Priority to KR1019960005554A priority Critical patent/KR100205259B1/ko
Priority to US08/791,903 priority patent/US5990877A/en
Publication of KR970067069A publication Critical patent/KR970067069A/ko
Application granted granted Critical
Publication of KR100205259B1 publication Critical patent/KR100205259B1/ko

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Classifications

    • 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
    • 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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  • 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 (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

본 발명은 액정디스플레이의 각 화소의 충전시간을 항상 동일하게 화질특성을 개선하기 위한 액티브매트릭스 액정디스플레이의 구동회로에 관한 것으로, 각 화소안에 보조박막트랜지스터(35)와 화소박막트랜지스터(31)를 설치하여 신호선(Y)에 인가되는 허용신호에 의해 보조박막트랜지스터(35)을 온시켜서 주사선(X)의 게이트구동신호를 화소박막트랜지스터(31)의 게이트에 다음번 허용신호가 인가될 때까지 저장함으로써, 각 화소에 항상 충분한 시간동안 신호가 될 수 있게 한다.

Description

액티브매트릭스 액정디스플레이의 구동회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3도는 본 발명에 따른 포인트구동방식의 액티브매트릭스 액정디스플레이 구동회로를 나타내는 도면, 제4도는 제3도의 액정디스플레이를 구동하는 파형도.

Claims (4)

  1. 시프트레지스터와 버퍼로 이루어진 게이트구동회로와, 시프트레지스터와, 버퍼와, 영상신호가 입력되는 영상신호인입선과, 게이트가 상기한 버퍼에 연결되고 소오스가 상기한 영상신호인입선에 연결되어 버퍼로부터 신호를 입력받아 구동되어 상기한 영상신호를 출력하는 패스게이트 트랜지스터로 이루어진 데이타구동회로와, 복수의 신호선 및 주사선과, 상기 신호선 및 주사선의 교차점에 형성되어 게이트가 신호선에 연결되고 소오스가 주사선에 연결된 보조박막트랜지스터와, 게이트가 상기한 보조박막트랜지스터의 드레인에 연결되고 소오스가 신호선에 연결되며 드레인이 화소전극에 연결된 데이타 출력표시부로 구성된 액티브매트릭스 액정디스플레이 구동회로.
  2. 제1항에 있어서, 상기 데이타구동회로에 허용신호가 입력되는 허용신호인입선과, 게이트가 상기한 버퍼의 출력선에 연결되어 상기한 버퍼로부터 신호를 입력받아 구동하여 상기한 허용신호를 신호선에 인가하는 허용박막트랜지스터가 추가로 구성된 것을 특징으로 하는 액티브매트릭스 액정디스플레이 구동회로.
  3. 제1항에 있어서, 상기한 보조박막트랜지스터의 문턱전압이 상기한 화소박막트랜지스터의 문턱 전압 보다 큰 것을 특징으로 하는 액티브매트릭스 액정디스플레이의 구동회로.
  4. 제2항에 있어서, 상기한 허용신호인입선에 인가되는 전압이 20~30V인 것을 특징으로 하는 액티브매트릭스 액정디스플레이 구동회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960005554A 1996-03-04 1996-03-04 액티브매트릭스 액정디스플레이의 구동회로 KR100205259B1 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019960005554A KR100205259B1 (ko) 1996-03-04 1996-03-04 액티브매트릭스 액정디스플레이의 구동회로
US08/791,903 US5990877A (en) 1996-03-04 1997-01-31 Driving circuit of an active matrix liquid crystal display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960005554A KR100205259B1 (ko) 1996-03-04 1996-03-04 액티브매트릭스 액정디스플레이의 구동회로

Publications (2)

Publication Number Publication Date
KR970067069A true KR970067069A (ko) 1997-10-13
KR100205259B1 KR100205259B1 (ko) 1999-07-01

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Country Status (2)

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US (1) US5990877A (ko)
KR (1) KR100205259B1 (ko)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
KR100468174B1 (ko) * 2001-03-29 2005-01-26 산요덴키가부시키가이샤 표시 장치
US9087490B2 (en) 2010-10-29 2015-07-21 Samsung Display Co., Ltd. Liquid crystal display

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KR100492986B1 (ko) * 1997-08-28 2005-08-05 삼성전자주식회사 박막트랜지스터액정표시소자게이트구동회로
JPH11214700A (ja) * 1998-01-23 1999-08-06 Semiconductor Energy Lab Co Ltd 半導体表示装置
JPH11338439A (ja) * 1998-03-27 1999-12-10 Semiconductor Energy Lab Co Ltd 半導体表示装置の駆動回路および半導体表示装置
JP3844613B2 (ja) 1998-04-28 2006-11-15 株式会社半導体エネルギー研究所 薄膜トランジスタ回路およびそれを用いた表示装置
JP3929206B2 (ja) * 1999-06-25 2007-06-13 株式会社アドバンスト・ディスプレイ 液晶表示装置
JP3668394B2 (ja) * 1999-09-13 2005-07-06 株式会社日立製作所 液晶表示装置およびその駆動方法
US6831299B2 (en) * 2000-11-09 2004-12-14 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device
KR100743103B1 (ko) * 2001-06-22 2007-07-27 엘지.필립스 엘시디 주식회사 일렉트로 루미네센스 패널
US7278108B2 (en) * 2001-08-10 2007-10-02 Danger, Inc. System and method of displaying multiple pending notifications in a single window
KR101002324B1 (ko) * 2003-12-22 2010-12-17 엘지디스플레이 주식회사 액정표시장치 및 그의 구동방법
TWI386744B (zh) * 2004-12-14 2013-02-21 Samsung Display Co Ltd 薄膜電晶體面板以及使用該薄膜電晶體面板之液晶顯示器
WO2007118332A1 (en) * 2006-04-19 2007-10-25 Ignis Innovation Inc. Stable driving scheme for active matrix displays
CN101847642B (zh) * 2009-03-27 2013-03-13 北京京东方光电科技有限公司 像素单元及阵列基板
JPWO2010146740A1 (ja) * 2009-06-17 2012-11-29 シャープ株式会社 表示駆動回路、表示装置及び表示駆動方法
CN102254503B (zh) * 2010-05-19 2013-06-12 北京京东方光电科技有限公司 移位寄存器单元、显示器用栅极驱动装置及液晶显示器

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JPS5875194A (ja) * 1981-10-30 1983-05-06 株式会社日立製作所 マトリクス表示装置及び駆動方法
JPS58140781A (ja) * 1982-02-17 1983-08-20 株式会社日立製作所 画像表示装置
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JPH05143023A (ja) * 1991-11-21 1993-06-11 Toshiba Corp 液晶表示装置
JP2939043B2 (ja) * 1992-04-07 1999-08-25 シャープ株式会社 アクティブマトリクス基板
JP2699876B2 (ja) * 1994-07-22 1998-01-19 日本電気株式会社 映像信号処理装置
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100468174B1 (ko) * 2001-03-29 2005-01-26 산요덴키가부시키가이샤 표시 장치
US9087490B2 (en) 2010-10-29 2015-07-21 Samsung Display Co., Ltd. Liquid crystal display
US9341907B2 (en) 2010-10-29 2016-05-17 Samsung Display Co., Ltd. Liquid crystal display

Also Published As

Publication number Publication date
US5990877A (en) 1999-11-23
KR100205259B1 (ko) 1999-07-01

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