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KR960035406A - 구동 회로 - Google Patents

구동 회로 Download PDF

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Publication number
KR960035406A
KR960035406A KR1019960006804A KR19960006804A KR960035406A KR 960035406 A KR960035406 A KR 960035406A KR 1019960006804 A KR1019960006804 A KR 1019960006804A KR 19960006804 A KR19960006804 A KR 19960006804A KR 960035406 A KR960035406 A KR 960035406A
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South Korea
Prior art keywords
electrode
period
supply means
voltage supply
driving circuit
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Application number
KR1019960006804A
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English (en)
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KR100215688B1 (ko
Inventor
히사오 오까다
유지 야마모또
스나오 에또
Original Assignee
쯔지 하루오
샤프 가부시끼가이샤
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Publication of KR960035406A publication Critical patent/KR960035406A/ko
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Publication of KR100215688B1 publication Critical patent/KR100215688B1/ko

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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
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
    • 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
    • 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
    • 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
    • G09G3/3696—Generation of voltages supplied to electrode drivers
    • 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
    • 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
    • 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
    • G09G2320/0214—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 with crosstalk due to leakage current of pixel switch in active matrix panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • 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)
  • Power Engineering (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

본 발명에 따르면, 용량성 부하를 구동하는 구동 회로는 제1전극 및 제2전극을 갖고 있다. 구동 회로는 제1전극에 접속되고, 제1기간 동안 상기 제1전극에 전하를 인가하고 제2기간 동안 1전극으로부터 전하를 받아들이는 제1충전부; 상기 제2전극에 접속되고, 상기 제1기간 동안 상기 제2전극으로부터 전하를 받아들이고 상기 제2기간 동안 상기 제2전극에 전하를 인가하는 제2충전부; 상기 제1기간과 상기 제2기간 사이의 제3기간 동안 상기 제1충전부와 상기 제1전극 사이에서 전하의 이동을 금지시키는 제1부; 상기 제3기간 동안 상기 제2충전부와 상기 제2전극 사이에서 전하의 이동을 금지시키는 제2부; 및 상기 제3기간에 포함되는 제4기간 동안 상기 제1전극과 상기 제2전극 사이에서 전하의 이동을 허용하는 제3부를 포함하고 있다.

Description

구동 회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 구동 회로의 기본 개념을 설명하는 회로도, 제2도는 제1도에 도시된 구동 회로의 동작을 설명하는 파형도, 제3도는 제1실시예에 따른 구동 회로의 구성을 도시한 블럭도, 제4도는 본 발명의 제2실시예에 따른 구동 회로의 동작을 설명하는 회로도.

Claims (8)

  1. 제1전극과 제2전극을 갖고 있는 용량성 부하를 구동시키기 위한 구동 회로에 있어서, 상기 제1전극에 접속되고, 제1기간 동안 상기 제1전극에 전하를 인가하고 제2기간 동안 상기 1전극으로부터 전하를 받아들이는 제1충천 수단, 상기 제2전극에 접속되고, 상기 제1기간 동안 상기 제2전극으로부터 전하를 받아들이고 상기 제2기간 동안 상기 제2전극에 전하를 인가하는 제2충전 수단, 상기 제1기간과 상기 제2기간 사이의 제3기간 동안 상기 제1충전 수단과 상기 제1전극 사이에서 전하의 이동을 금지시키는 제1수단, 상기 제3기간 동안 상기 제2충전 수단과 상기 제2전극 사이에서 전하의 이동을 금지시키는 제2수단, 및 상기 제3기간에 포함되는 제4기간 동안 상기 제1전극과 상기 제2전극 사이에서 전하의 이동을 허용하는 제3수단을 포함하는 것을 특징으로 하는 구동 회로.
  2. 제1항에 있어서, 상기 제1수단, 상기 제2수단 및 제3수단은 스위칭 회로를 포함하는 것을 특징으로 하는 구동 회로.
  3. 제2항에 있어서, 상기 스위칭 회로는 전계 효과 트랜지스터를 포함하는 것을 특징으로 하는 구동 회로.
  4. 한쌍의 기판 중 한쪽에는 그 위에 데이타 전극이 제공되고 다른쪽에는 그 위에 공통 전극이 제공되는, 디스플레이 매체를 사이에 두고 서로 대향하여 배치되는 한쌍의 기판을 포함하는 액정 디스플레이 장치를 구동 하기 위한 구동 회로에 있어서, 공통 전극 전압을 공통 전극에 공급하는 공통 전극 전압 공급 수단, 상기 공통 전극 전압의 극성에 대하여 포지티브 또는 네거티브로 반전되는 극성을 갖는 계조 전압을 상기 데이타 전극에 공급하는 계조 전압 공급 수단, 상기 데이타 전극에 공급된 상기 계조 전압의 극성이 반전되는 시간을 포함하는 제1기간 동안 상기 공통 전극 전압 공급 수단과 상기 공통 전극을 서로 전기적으로 절연시키는 제1수단, 상기 제1기간 동안 상기 공통 전극 전압 공급 수단과 상기 공통 전극을 서로 전기적으로 절연시키는 제2수단, 및 상기 제1기간에 포함된 제2기간 동안 상기 공통 전극과 상기 데이타 전극을 서로 전기적으로 절연시키는 제3수단을 포함하는 것을 특징으로 하는 액정 디스플레이 장치를 구동하는 구동 회로.
  5. 제4항에 있어서, 상기 제1, 상기 제2 및 상기 제3수단은 스위칭 회로를 포함하는 것을 특징으로 하는 구동 회로.
  6. 제5항에 있어서, 상기 스위칭 회로가 전계 효과 트랜지스터를 포함하는 것을 특징으로 하는 액정 디스플레이 장치를 구동하는 구동 회로.
  7. 제4항에 있어서, 상기 공통 전극 전압 공급 수단은, 하이 레벨 직류 전압을 공급하는 제1전압 공급 수단, 및 로우 레벨 직류 전압을 공급하는 제2전압 공급 수단으로 포함하되, 상기 제1전압 공급 수단과 상기 제2전압 공급 수단으로부터의 각각의 출력은 상기 제1수단에 의해 제어되는 것을 특징으로 하는 액정 디스플레이 장치를 구동하는 구동 회로.
  8. 제4항에 있어서, 상기 계조 전압 공급 수단은, 하이 레벨 직류 전압을 공급하는 제1전압 공급 수단, 및 로우 레벨 직류 전압을 공급하는 제2전압 공급 수단을 포함하되, 상기 제1전압 공급 수단과 상기 제2전압 공급 수단으로부터의 각각의 출력은 상기 제2수단에 의해 제어되는 것을 특징으로 하는 액정 디스플레이 장치를 구동하는 구동 회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960006804A 1995-03-14 1996-03-14 액정디스플레이 장치를 구동 하는 구동회로 KR100215688B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP95-054732 1995-03-14
JP05473295A JP3322327B2 (ja) 1995-03-14 1995-03-14 駆動回路

Publications (2)

Publication Number Publication Date
KR960035406A true KR960035406A (ko) 1996-10-24
KR100215688B1 KR100215688B1 (ko) 1999-08-16

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US (1) US6172663B1 (ko)
JP (1) JP3322327B2 (ko)
KR (1) KR100215688B1 (ko)
NL (1) NL1002584C2 (ko)

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KR0140041B1 (ko) * 1993-02-09 1998-06-15 쯔지 하루오 표시 장치용 전압 발생 회로, 공통 전극 구동 회로, 신호선 구동 회로 및 계조 전압 발생 회로
JPH1130975A (ja) * 1997-05-13 1999-02-02 Oki Electric Ind Co Ltd 液晶表示装置の駆動回路及びその駆動方法
US7304632B2 (en) * 1997-05-13 2007-12-04 Oki Electric Industry Co., Ltd. Liquid-crystal display driving circuit and method
JP4308162B2 (ja) * 1997-05-13 2009-08-05 Ｏｋｉセミコンダクタ株式会社 液晶表示装置の駆動回路及びその駆動方法
JPH10326090A (ja) * 1997-05-23 1998-12-08 Sony Corp アクティブマトリクス表示装置
JP3501939B2 (ja) * 1997-06-04 2004-03-02 シャープ株式会社 アクティブマトリクス型画像表示装置
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JP3322327B2 (ja) 2002-09-09
US6172663B1 (en) 2001-01-09
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NL1002584A1 (nl) 1996-09-18
KR100215688B1 (ko) 1999-08-16

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