KR950034030A - 액티브 매트릭스 표시장치 및 그 구동방법 - Google Patents

액티브 매트릭스 표시장치 및 그 구동방법 Download PDF

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KR950034030A
KR950034030A KR1019950009224A KR19950009224A KR950034030A KR 950034030 A KR950034030 A KR 950034030A KR 1019950009224 A KR1019950009224 A KR 1019950009224A KR 19950009224 A KR19950009224 A KR 19950009224A KR 950034030 A KR950034030 A KR 950034030A
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signal
precharge
line
active matrix
signal line
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KR1019950009224A
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KR100366307B1 (ko
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도시까즈 마에까와
가쓰히데 유찌노
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오오가 노리오
소니 가부시끼가이샤
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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
    • 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
    • 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
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • 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
    • 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
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2011—Display of intermediate tones by amplitude modulation

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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)
  • Liquid Crystal (AREA)

Abstract

본 발명의 목적은 샘플링비율의 고속화에 수반하는 비디오라인의 전위흔들림을 억제한다.
그 구성은 액티브 매트릭스 표시장치는 행형태의 게이트선(X)과, 열형태의 신호선(Y)과, 양자의 교차부에 배치된 행렬형태의 액정화소(LC)를 갖추고 있다. V드라이버(1)는 각 게이트선(X)을 순차 주사하고 일수평기간마다 일행분의 액정화소 (LC)를 선택한다. H드라이버(4)는 각 신호선(Y)에 대하여 영상신호(VSIG)를 샘플링하고, 일수평기간 내에 선택된 일행분의 액정화소(LC)에 영상신호(VSIG)를 기입한다. 프리차지수단(5)은 일행분의 액정화소(LC)에 대하여 영상신호(VSIG)를 기입직전에 각 신호선(Y)에 소정의 프리차지신호(VPS)를 공급한다. 이것에 의해 영상신호 (VSIG)를 샘플링할 때 각 신호선(Y)의 충방전량을 저감화 할 수 있고, 비디오라인 (2)의 전위흔들림을 억제가능하게 한다.

Description

액티브 매트릭스 표시장치 및 구동방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 관계되는 액티브 매트릭스 표시장치의 제1실시예를 나타내는 회로도이다.

Claims (6)

  1. 행형태의 게이트선과, 열형태의 신호선과, 양자의 각 교차부에 배치된 행렬형태의 화소와, 각 게이트선을 순차 주사하여 일수평기간마다 일행분의 화소를 선택하는 수직주사회로와, 각 신호선에 대하여 영상신호를 샘플링하여 일수평기간 내에 선택된 일행분의 화소에 영상신호를 기입하는 수평주사회로와를 가지는 액티브 매트릭스 표시장치이며, 일행분의 화소에 대하여 영상신호를 기입하기 직전에 각 신호선에 소정의 프리차지신호를 공급하는 프리차지수단을 포함하여 구성된 것을 특징으로 하는 액티브 매트릭스 표시장치.
  2. 제1항에 있어서, 상기 프리차지수단은 백색레벨과 흑색레벨사이에서 변화하는 영상 신호에 대하여 회색레벨을 가지는 프리차지신호를 공급하도록 구성된 것을 특징으로 하는 액티브 매트릭스 표시장치.
  3. 제1항에 있어서, 상기 프리차지수단은 일수평기간마다 반전하는 영상신호에 대하여 극성일 일치시키기 때문에 같은 일수평기간마다 반전하는 프리차지신호를 공급하도록 구성된 것을 특징으로 하는 액티브 매트릭스 표시장치.
  4. 제1항에 있어서, 상기 프리차지수단은 수평주사회로와는 별개로 설치되며, 각 신호선의 단부에 접속한 복수의 스위칭소자와, 각 스위칭소자를 일제로 개폐하여 프리차지신호를 각 신호선에 인가하는 제어수단으로 이루도록 구성된 것을 특징으로 하는 액티브 매트릭스 표시장치.
  5. 제1항에 있어서, 상기 프리차지수단은 수평주사회로와 일체로 설치되며 각 신호선의 단부에 접속한 복수의 스위칭소자와, 기입시 각 스위칭소자를 순차 개폐하여 대응하는 신호선에 영상신호를 샘플링하는 한편, 기입직전 각 스위칭소자를 일제로 개폐하여 영상신호의 일부에 포함되는 프리차지신호를 각 신호선에 인가하는 제어수단으로 이루어지도록 구성된 것을 특징으로 하는 액티브 매트릭스 표시장치.
  6. 행형태의 게이트선과, 열형태의 신호선과, 양자의 각 교차부에 배치된 행열형태의 화소를 가지는 액티브 매트릭스 표시장치의 구동방법이며, 각 게이트선을 순차 주사하여 일수평기간마다 일행분의 화소를 선택하는 수직주사와, 각 신호선에 대하여 영상신호를 순차 샘플링하여 일수평기간 내에 선택된 일행분의 화소에 영상신호를 기입하는 수평주사와, 일행분의 화소에 대하여 영상신호를 기입하기 직전 각 신호선에 소정의 프리차지신호를 일제로 공급하는 프리차지와를 행하도록 구성된 것을 특징으로 하는 액티브 매트릭스 표시장치의 구동방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950009224A 1994-04-22 1995-04-19 액티브 매트릭스 표시장치 및 그 구동방법 KR100366307B1 (ko)

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Application Number Priority Date Filing Date Title
JP10759994A JP3451717B2 (ja) 1994-04-22 1994-04-22 アクティブマトリクス表示装置及びその駆動方法
JP94-107599 1994-04-22

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KR100366307B1 KR100366307B1 (ko) 2003-03-06

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US (1) US5764207A (ko)
EP (1) EP0678849B1 (ko)
JP (1) JP3451717B2 (ko)
KR (1) KR100366307B1 (ko)
DE (1) DE69517851T2 (ko)
MY (1) MY113357A (ko)
SG (1) SG46129A1 (ko)

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KR100428698B1 (ko) * 1995-04-11 2004-07-09 소니 가부시끼 가이샤 액티브매트릭스표시장치

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JPH07295521A (ja) 1995-11-10
DE69517851D1 (de) 2000-08-17
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EP0678849A1 (en) 1995-10-25
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US5764207A (en) 1998-06-09

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