KR970017137A - 매트릭스형 액정 표시 소자의 다계조 표시 구동 방법 - Google Patents

매트릭스형 액정 표시 소자의 다계조 표시 구동 방법 Download PDF

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Publication number
KR970017137A
KR970017137A KR1019950029161A KR19950029161A KR970017137A KR 970017137 A KR970017137 A KR 970017137A KR 1019950029161 A KR1019950029161 A KR 1019950029161A KR 19950029161 A KR19950029161 A KR 19950029161A KR 970017137 A KR970017137 A KR 970017137A
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South Korea
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liquid crystal
crystal display
driving
image data
bits
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KR1019950029161A
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KR100337866B1 (ko
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최선정
박철우
오춘열
김인석
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윤종용
삼성전관 주식회사
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Priority to KR1019950029161A priority Critical patent/KR100337866B1/ko
Priority to GB9520904A priority patent/GB2304961B/en
Priority to DE19538656A priority patent/DE19538656A1/de
Priority to JP7275691A priority patent/JP3029989B2/ja
Priority to US08/547,920 priority patent/US5724058A/en
Priority to TW085110818A priority patent/TW328120B/zh
Priority to CN96112902A priority patent/CN1102751C/zh
Priority to FR9610908A priority patent/FR2738379B1/fr
Publication of KR970017137A publication Critical patent/KR970017137A/ko
Application granted granted Critical
Publication of KR100337866B1 publication Critical patent/KR100337866B1/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
    • G09G3/2007—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
    • 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
    • G09G3/3622—Control of matrices with row and column drivers using a passive 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
    • G09G3/3622—Control of matrices with row and column drivers using a passive matrix
    • G09G3/3625—Control of matrices with row and column drivers using a passive matrix using active addressing
    • 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
    • G09G3/2014—Display of intermediate tones by modulation of the duration of a single pulse during which the logic level remains constant
    • 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
    • G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
    • G09G3/2022—Display of intermediate tones by time modulation using two or more time intervals using sub-frames
    • G09G3/2025—Display of intermediate tones by time modulation using two or more time intervals using sub-frames the sub-frames having all the same time duration
    • 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
    • G09G3/2059—Display of intermediate tones using error diffusion

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

본 발명은 구동 전압을 낮추고, 계조 레벨의 열화(劣化)없이 서브 프레임 간의 구동 전압 크기 변화율을 크게 낮출 수 있는 단순 매트릭스형 액정 표시 장치의 다계조(Grey scale) 표시 구동 방법에 관한 것으로, 종래의 2진 코드(binary code) 화상 데이타 체계를 액정 표시 소자의 특성 및 계조 표시 구동을 위한 서브 프레임수 및 구동전압 조건등 액정 표시 소자의 시스템 환경을 고려한 최적의 코드로 변환한 다음, 이들 변환된 화상 데이타 코드값들 중에서 하위 비트에 대하여 오차확산법을 부분 적용한후, 가중치가 높은 나머지 상위 비트를 전압 및 프레임 변조 계조 표시방식을 이용하여 다계조의 화상을 표시함으로써, 전극 구동 신호 전압을 크게 감소시킬 수 있고, 서브 프레임별 구동 전압의 크기 차를 크게 낮출 수 있으며, 공간변조에 따른 화질의 저하를 극소화할 수 있으며, 저속응답에서 고속응답에 이르기까지 모든 단순 매트릭스 액정 표시 소자의 구동에 적용이 가능한 장점이 있다.

Description

매트릭스형 액정 표시 소자의 다계조 표시 구동 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제11도는 본 발명에 따른 오차 확산 방식에 의한 화상 데이타 처리 순서도,
제14도는 본 발명에 따른 계조화 표시 방식에 따른 액정 표시 소자의 구동 장치이다.

Claims (4)

  1. 입력된 N 비트 화상 데이타의 오차 확산 처리값을 N 보다 작은 n 비트로 결정하는 단계; 상기 N 비트 화상 데이타를 N 보다 크거나 같은 M 비트의 최적 코드로 데이타 변환을 수행하는 단계; 상기 최적의 M 비트로 변환된 화상 데이타에서 상기 오차 확산 처리값 n 비트 만큼을 에러 확산 처리하는 단계; 그리고 상기 n 비트가 에러 확산 처리된 M-n 비트의 화상 데이타를 계조 표시 방식에 의하여 화상을 표시하는 단계를 포함하는 것을 특징으로 하는 매트릭스 액정 표시 소자의 구동 방법.
  2. 제1항에 있어서, 상기 오차 확산 처리값을 n 비트로 결정하는 단계에서 오차 확산 처리값이 1 이하이면 최하위 1비트, 2 이하이면 최하위 2비트, 3 이하이면 최하위 2비트, 7 이하이면 최하위 3비트를 오차 확산 처리하는 것을 특징으로 하는 매트릭스 액정 표시 소자의 구동 방법.
  3. 제1항에 있어서, 상기 데이타 변환을 수행하는 단계에서는, 상기 변환된 M-n 비트의 최대값이 상기 N 비트 입력 화상 데이타의 최대값과 같도록 변환하는 것을 특징으로 하는 매트릭스 액정 표시 소자의 구동 방법.
  4. 제1항에 있어서, 상기 데이타 변환을 수행하는 단계에서는, 상기 변환된 M-n 비트의 화상 데이타의 각 비트별 가중치의 차가 상기 입력 화상 데이타의 각 비트별 가중치의 차보다 작도록 화상 데이타 코드를 변환하는 것을 특징으로 하는 매트릭스 액정 표시 소자의 구동 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950029161A 1995-09-06 1995-09-06 매트릭스형 액정 표시 소자의 다계조 표시 구동 방법 KR100337866B1 (ko)

Priority Applications (8)

Application Number Priority Date Filing Date Title
KR1019950029161A KR100337866B1 (ko) 1995-09-06 1995-09-06 매트릭스형 액정 표시 소자의 다계조 표시 구동 방법
GB9520904A GB2304961B (en) 1995-09-06 1995-10-12 Grey scale display driving method of a matrix LCD and driving apparatus therefor
DE19538656A DE19538656A1 (de) 1995-09-06 1995-10-17 Graustufungsanzeige-Treiberverfahren und Matrix-Flüssigkristall-Display
JP7275691A JP3029989B2 (ja) 1995-09-06 1995-10-24 マトリックス型液晶表示素子の多階調表示駆動方法および多階調表示駆動装置
US08/547,920 US5724058A (en) 1995-09-06 1995-10-25 Gray scale display driving method of a matrix liquid crystal display and driving apparatus therefor
TW085110818A TW328120B (en) 1995-09-06 1996-09-04 Gray scale display driving method and apparatus of a matrix liquid crystal display
CN96112902A CN1102751C (zh) 1995-09-06 1996-09-06 矩阵液晶显示器的灰度显示驱动方法和设备
FR9610908A FR2738379B1 (fr) 1995-09-06 1996-09-06 Procede de pilotage d'affichage par echelle de gris d'un dispositif d'affichage a cristaux liquides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950029161A KR100337866B1 (ko) 1995-09-06 1995-09-06 매트릭스형 액정 표시 소자의 다계조 표시 구동 방법

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KR970017137A true KR970017137A (ko) 1997-04-30
KR100337866B1 KR100337866B1 (ko) 2002-11-04

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KR1019950029161A KR100337866B1 (ko) 1995-09-06 1995-09-06 매트릭스형 액정 표시 소자의 다계조 표시 구동 방법

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US (1) US5724058A (ko)
JP (1) JP3029989B2 (ko)
KR (1) KR100337866B1 (ko)
CN (1) CN1102751C (ko)
DE (1) DE19538656A1 (ko)
FR (1) FR2738379B1 (ko)
GB (1) GB2304961B (ko)
TW (1) TW328120B (ko)

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KR100731882B1 (ko) * 2006-03-09 2007-06-25 김규태 영상신호의 계조데이터 변환방법
KR100734213B1 (ko) * 2005-09-27 2007-07-02 엠텍비젼 주식회사 계조 포화 정보 표시 방법 및 장치
KR100767368B1 (ko) * 2001-08-31 2007-10-17 삼성전자주식회사 액정 표시 장치 및 그 구동 방법
KR100850498B1 (ko) * 2007-05-31 2008-08-05 주식회사 실리콘웍스 Ｐｗｍ 계조 펄스 신호들을 이용하는 디스플레이 구동 장치및 방법

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JP4637315B2 (ja) 1999-02-24 2011-02-23 株式会社半導体エネルギー研究所 表示装置
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DE202005021595U1 (de) 2005-09-02 2009-04-23 Ba-Tech Verwaltung Gmbh Elektronisches Anzeigesystem einschließlich zugehöriger elektronischer und elektrischer Bauteile
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JP5783109B2 (ja) * 2012-03-28 2015-09-24 株式会社Ｊｖｃケンウッド 画像表示装置
CN105405411B (zh) * 2015-12-01 2018-01-05 深圳市国华光电科技有限公司 一种16阶电泳显示器的显示驱动方法和系统
JP6939379B2 (ja) * 2017-10-11 2021-09-22 株式会社Ｊｖｃケンウッド 表示装置の駆動装置、液晶表示装置、及び表示装置の駆動方法

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KR100734213B1 (ko) * 2005-09-27 2007-07-02 엠텍비젼 주식회사 계조 포화 정보 표시 방법 및 장치
KR100731882B1 (ko) * 2006-03-09 2007-06-25 김규태 영상신호의 계조데이터 변환방법
KR100850498B1 (ko) * 2007-05-31 2008-08-05 주식회사 실리콘웍스 Ｐｗｍ 계조 펄스 신호들을 이용하는 디스플레이 구동 장치및 방법

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GB2304961B (en) 1999-09-08
CN1102751C (zh) 2003-03-05
US5724058A (en) 1998-03-03
TW328120B (en) 1998-03-11
GB9520904D0 (en) 1995-12-13
FR2738379A1 (fr) 1997-03-07
GB2304961A (en) 1997-03-26
CN1161466A (zh) 1997-10-08
JP3029989B2 (ja) 2000-04-10
JPH0973069A (ja) 1997-03-18
DE19538656A1 (de) 1997-03-13
FR2738379B1 (fr) 1999-04-16

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