KR960030066A - 박막 트랜지스터 액정표시장치의 구동장치 및 방법 - Google Patents

박막 트랜지스터 액정표시장치의 구동장치 및 방법 Download PDF

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Publication number
KR960030066A
KR960030066A KR1019950000406A KR19950000406A KR960030066A KR 960030066 A KR960030066 A KR 960030066A KR 1019950000406 A KR1019950000406 A KR 1019950000406A KR 19950000406 A KR19950000406 A KR 19950000406A KR 960030066 A KR960030066 A KR 960030066A
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South Korea
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liquid crystal
gate
thin film
film transistor
signal
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KR1019950000406A
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KR0169354B1 (ko
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문승환
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김광호
삼성전자 주식회사
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Priority to KR1019950000406A priority Critical patent/KR0169354B1/ko
Priority to TW085100260A priority patent/TW281755B/zh
Priority to US08/584,444 priority patent/US5825343A/en
Publication of KR960030066A publication Critical patent/KR960030066A/ko
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Publication of KR0169354B1 publication Critical patent/KR0169354B1/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
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3677—Details of drivers for scan 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
    • G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
    • 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
    • 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)
  • 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)
  • Liquid Crystal (AREA)

Abstract

2회의 펄스를 갖는 시작 신호(STV)와, 클럭 신호(VCLK)를 생성하여 출력하는 액정 인터페이스 IC(1)와, 상기한 액정 인터페이스 IC로부터 입력되는 시작신호에 따라 2회의 펄스를 갖는 게이트 전극전압을 각 게이트 라인으로 출력하는 게이트 버스 드라이버 IC(2)와, 상기한 게이트 버스 드라이버 IC로부터 입력되는 게이트 전극전압에 의해 각 게이트 라인의 박막 트랜지스터가 구동되고, 이에 따라 데이터 버스 라인에 인가되는 계조전압과 공통전극전압 간의 전위차에 의해서 액정이 구동되도록 하는 액정 픽셀(3)로 구성되어 있으며, 박막 트랜지스터의 2회의 펄스를 갖는 게이트 전극전압을 인가함으로써 구동펄스의 폭을 2배로 하는 것과 유사한 효과를 내도록 함으로써, 액정 픽셀이 정확히 구동되도록 하는 효과를 가진 박막 트랜지스터 액정 표시장치의 구동장치 및 방법을 제공한다.

Description

박막 트랜지스터 액정표시장치의 구동장치 및 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제5도는 이 발명의 실시예에 따른 박막 트랜지스터 액정 표시장치의 구동장치의 블럭 회로도이고, 제6도는 이 발명의 실시예에 따른 시작 신호(STV)를 생성하기 위한 게이트 어레이의 회로도이고, 제7도는 이 발명의 실시예에 따른 게이트 어레이의 동작 파형도이다.

Claims (5)

  1. 2회의 펄스를 갖는 시작 신호(STV)와, 클럭 신호(VCLK)를 생성하여 출력하는 액정 인터페이스 IC와, 상기한 액정 인터페이스 IC로부터 입력되는 시작신호에 따라 2회의 펄스를 갖는 게이트 전극전압을 각 게이트 라인으로 출력하는 게이트 버스 드라이버 IC와, 상기한 게이트 버스 드라이버 IC로부터 입력되는 게이트 전극전압에 의해 각 게이트 라인의 박막 트랜지스터가 구동되고, 이에 따라 데이터 버스 라인에 인가되는 계조전압과 공통전극전압 간의 전위차에 의해서 액정이 구동되도록 하는 액정 픽셀로 이루어지는 것을 특징으로 하는 박막 트랜지스터 액정 표시장치의 구동장치.
  2. 제1항에 있어서, 상기한 액정 인터페이스 IC는, 수직 동기신호에 의해 클리어된 뒤에, 수평 동기 신호에 의해 카운팅을 하는 10비트 카운터와, 상기한 10비트 카운터의 하위 6비트 출력신호를 각각 반전시키기 위한 인버터들과, 이진수 0000111111일때 하이상태의 신호를 출력하는 제1부정논리합 수단과, 이진수 0000000001일때 하이상태의 신호 출력하는 제2부정논리합 수단과, 상기한 제1 및 제2부정논리합 수단의 출력신호를 논리합시켜 출력하는 논리합 수단으로 이루어지는 게이트 어레이를 포함하는 것을 특징으로 하는 박막 트랜지스터 액정 표시장치의 구동장치.
  3. 제2항에 있어서, 상기한 제1 및 제2부정논리합 수단으로서 NOR 게이트를 사용함과 동시에 상기한 논리합 수단으로서 OR 게이트를 사용하는 것을 특징으로 하는 박막 트랜지스터 액정 표시장치의 구동장치.
  4. 제1항에 있어서, 상기한 게이트 버스 드라이버 IC는 공통전극 반전방식으로 구동되는 것을 특징으로 하는 박막 트랜지스터 액정 표시장치의 구동장치.
  5. 수직 동기신호(Vsync)에 의해서 카운팅이 클리어된 후에, 31번째에 해당하는 수평 동기신호(Hsync)에서 시작신호(STV)의 펄스를 생성하는 단계와, 33번째에 해당하는 수평 동기신호(Hsync)에서 시작신호(STV)의 펄스를 생성하는 단계와, 상기한 시작신호(STV)를 게이트 버스 드라이버 IC로 인가함으로써 2회의 펄스를 갖는 게이트 전극전압이 박막 트랜지스터의 게이트 라인에 인가되도록 하는 단계로 이루어지는 것을 특징으로 하는 박막 트랜지스터 액정 표시장치의 구동방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950000406A 1995-01-11 1995-01-11 박막 트랜지스터 액정표시장치의 구동장치 및 방법 KR0169354B1 (ko)

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Application Number Priority Date Filing Date Title
KR1019950000406A KR0169354B1 (ko) 1995-01-11 1995-01-11 박막 트랜지스터 액정표시장치의 구동장치 및 방법
TW085100260A TW281755B (en) 1995-01-11 1996-01-10 A driving device and driving method for a thin film transistor liquid crystal display
US08/584,444 US5825343A (en) 1995-01-11 1996-01-11 Driving device and driving method for a thin film transistor liquid crystal display

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Application Number Priority Date Filing Date Title
KR1019950000406A KR0169354B1 (ko) 1995-01-11 1995-01-11 박막 트랜지스터 액정표시장치의 구동장치 및 방법

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KR960030066A true KR960030066A (ko) 1996-08-17
KR0169354B1 KR0169354B1 (ko) 1999-03-20

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TW573290B (en) * 2000-04-10 2004-01-21 Sharp Kk Driving method of image display apparatus, driving apparatus of image display apparatus, and image display apparatus
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US7724270B1 (en) 2000-11-08 2010-05-25 Palm, Inc. Apparatus and methods to achieve a variable color pixel border on a negative mode screen with a passive matrix drive
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KR100365500B1 (ko) * 2000-12-20 2002-12-18 엘지.필립스 엘시디 주식회사 도트 인버젼 방식의 액정 패널 구동 방법 및 그 장치
DE60217509T2 (de) * 2002-11-07 2007-11-15 Dialog Semiconductor Gmbh Verfahren und System zum Einsparen von Energie in Zeilentreiberschaltkreisen für monochrome Flüssigkristallanzeigen
US20040103235A1 (en) * 2002-11-27 2004-05-27 Pei-Chung Liu USB based terminal device
JP4633662B2 (ja) * 2006-03-20 2011-02-16 シャープ株式会社 走査信号線駆動装置、液晶表示装置、ならびに液晶表示方法
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TWI330746B (en) * 2006-08-25 2010-09-21 Au Optronics Corp Liquid crystal display and operation method thereof
TWM325514U (en) * 2007-06-26 2008-01-11 Wintek Corp Active matrix substrate and liquid crystal display thereof
KR101493491B1 (ko) * 2008-09-03 2015-03-05 삼성디스플레이 주식회사 표시장치 및 이의 구동방법
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TW201027497A (en) * 2009-01-06 2010-07-16 Chunghwa Picture Tubes Ltd Method of driving scan lines of a flat panel display
KR20140039751A (ko) 2012-09-25 2014-04-02 삼성디스플레이 주식회사 표시 장치 및 그 구동 방법
KR102120172B1 (ko) * 2013-12-24 2020-06-08 엘지디스플레이 주식회사 표시장치 및 그 구동방법
KR102087379B1 (ko) 2013-12-31 2020-03-11 삼성디스플레이 주식회사 액정 표시 장치
KR102279892B1 (ko) 2014-12-23 2021-07-22 삼성디스플레이 주식회사 표시 장치
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US5825343A (en) 1998-10-20
TW281755B (en) 1996-07-21
KR0169354B1 (ko) 1999-03-20

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