KR960035408A - 액정 디스플레이 구동을 위한 구동 회로 - Google Patents

액정 디스플레이 구동을 위한 구동 회로 Download PDF

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Publication number
KR960035408A
KR960035408A KR1019960008044A KR19960008044A KR960035408A KR 960035408 A KR960035408 A KR 960035408A KR 1019960008044 A KR1019960008044 A KR 1019960008044A KR 19960008044 A KR19960008044 A KR 19960008044A KR 960035408 A KR960035408 A KR 960035408A
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South Korea
Prior art keywords
output terminal
driving
drive
switching means
voltage selector
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KR1019960008044A
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English (en)
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KR100193413B1 (ko
Inventor
고우헤이 마쯔다
세이 사이또
Original Assignee
가네꼬 히사시
닛뽕덴끼 가부시끼가이샤
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Publication of KR960035408A publication Critical patent/KR960035408A/ko
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Publication of KR100193413B1 publication Critical patent/KR100193413B1/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
    • 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
    • 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
    • G09G3/3685—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
    • 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
    • G09G2310/0286—Details of a shift registers 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
    • 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
    • G09G2310/0297—Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
    • 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
    • G09G2330/023—Power management, e.g. power saving using energy recovery or conservation

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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)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

전압 극성을 역전하여 디스플레이를 구동시키는 구동 회로는 감소된 전력 소비로 동작한다. 구동 회로는 교대로 배치된 양 및 네거티브 구동 전압 셀렉터 회로를 포함한 구동 전압 셀렉터 회로와, 양 및 네가티브 구동 전압 셀렉터 회로로부터의 각각의 신호가 제1수평 단계에서 제1 및 제2단자로 각각이 출력되는 상태와 양과 네가티브 구동 전압 셀렉터 회로로부터의 각각의 신호가 제2수평 단계에서 제1 및 제2단자로 각각 전달되는 상태 사이의 체인지오버 동작을 하는 회로를 구비한다.

Description

액정 디스플레이 구동을 위한 구동 회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제8도는 본 발명에 의한 구동 회로의 제1실시예를 도시하는 개략적 블럭 다이어그램, 제9도는 제1실시예의 동작을 도시하는 신호 타이밍 차트, 제10도는 본 발명에 의한 제1실시예의 스위칭부의 동작을 설명하기 위한 도표.

Claims (4)

  1. 입력된 데이타에 따라 각각의 제1출력 단자와 제2출력 단자에 각각의 구동 전압을 인가하기 위한 제1구동 전압 셀렉터 회로와 제2구동 전압 셀렉터 회로로서, 상기 제1출력 단자에 인가된 상기 구동 전압은 상기 제2출력 단자에 전달된 상기 구동 전압의 극성과 다른 극성을 가지는 제1구동 전압 셀렉터 회로와 제2구동 전압 셀렉터 회로; 상기 제1 및 제2출력 단자에 각각 결합되어 배치된 제1구동 출력 단자와 제2구동 출력 단자; 및 상기 제1출력 단자와 상기 제2출력 단자의 사이 및 상기 제1구동 출력 단자와 상기 제2구동 출력 단자의 사이에 각각 배치된 스위칭 수단을 구비하는 것을 특징으로 하는 구동 회로.
  2. 제1항에 있어서, 상기 스위칭 수단은 제어 신호에 의해 제어되고, 상기 스위칭 수단은, 상기 제어 신호가 제1레벨에 있을때, 상기 제1출력 단자를 상기 제1구동 출력 단자에 접속하고 상기 제2출력 단자를 상기 제2구동 출력 단자에 접속하며, 상기 스위칭 수단은, 상기 제어 신호가 제2레벨에 있을때, 상기 제1출력 단자를 상기 제2구동 출력 단자에 접속하고 상기 제2출력 단자를 상기 제1구동 출력 단자에 접속하는 것을 특징으로 하는 구동 회로.
  3. 제1항에 있어서, 상기 제1구동 전압 셀렉터 회로는 항상 제1극성을 갖는 구동 전압을 발생시키고, 상기 제2구동 전압 셀렉터 회로는 항상 상기 제1극성과 다른 제2극성을 갖는 구동 전압을 발생시키는 것을 특징으로 하는 구동 회로.
  4. 제1항에 있어서, 상기 스위칭 수단은, 상기 제1출력 단자와 상기 제1구동 출력 단자에 사이에 설치된 제1스위칭 수단; 상기 제2출력 단자와 상기 제2구동 출력 단자에 사이에 설치된 제2스위칭 수단; 및 상기 제1구동 출력 단자와 상기 제2출력 단자 사이에 설치된 제3스위칭 수단을 구비하는 것을 특징으로 하는 구동 회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960008044A 1995-03-23 1996-03-23 액정 디스플레이 구동을 위한 구동 회로 KR100193413B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7063863A JP2822911B2 (ja) 1995-03-23 1995-03-23 駆動回路
JP95-63863 1995-03-23

Publications (2)

Publication Number Publication Date
KR960035408A true KR960035408A (ko) 1996-10-24
KR100193413B1 KR100193413B1 (ko) 1999-06-15

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Country Link
US (1) US5886679A (ko)
JP (1) JP2822911B2 (ko)
KR (1) KR100193413B1 (ko)

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KR100235592B1 (ko) * 1997-01-22 1999-12-15 구본준 평행전계형 액정표시장치
KR100242110B1 (ko) * 1997-04-30 2000-02-01 구본준 도트인버전 구동방식의 액정표시장치와 그 구동회로
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JP2003029719A (ja) 2001-07-16 2003-01-31 Hitachi Ltd 液晶表示装置
JP4124092B2 (ja) * 2003-10-16 2008-07-23 沖電気工業株式会社 液晶表示装置の駆動回路
KR100598739B1 (ko) * 2003-12-11 2006-07-10 엘지.필립스 엘시디 주식회사 액정표시장치
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JP4348318B2 (ja) 2005-06-07 2009-10-21 シャープ株式会社 階調表示基準電圧発生回路および液晶駆動装置
JP2007207826A (ja) * 2006-01-31 2007-08-16 Orion Denki Kk プリント基板
EP2008264B1 (en) * 2006-04-19 2016-11-16 Ignis Innovation Inc. Stable driving scheme for active matrix displays
KR101982716B1 (ko) * 2012-02-28 2019-05-29 삼성디스플레이 주식회사 표시장치
USD853074S1 (en) * 2015-06-01 2019-07-02 Nihon Coffin Co., LTD Coffin
US10943556B2 (en) * 2019-06-26 2021-03-09 Novatek Microelectronics Corp. Data driver and driving method for driving display panel

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Also Published As

Publication number Publication date
JPH08263013A (ja) 1996-10-11
KR100193413B1 (ko) 1999-06-15
JP2822911B2 (ja) 1998-11-11
US5886679A (en) 1999-03-23

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