KR960038717A - 표시장치 - Google Patents

표시장치 Download PDF

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Publication number
KR960038717A
KR960038717A KR1019960010394A KR19960010394A KR960038717A KR 960038717 A KR960038717 A KR 960038717A KR 1019960010394 A KR1019960010394 A KR 1019960010394A KR 19960010394 A KR19960010394 A KR 19960010394A KR 960038717 A KR960038717 A KR 960038717A
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KR
South Korea
Prior art keywords
signal
video signal
sample
video
sample hold
Prior art date
Application number
KR1019960010394A
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English (en)
Other versions
KR100386184B1 (ko
Inventor
가쓰히데 우치노
도시가즈 마에가와
요시하루 나카지마
히로요시 쓰보다
Original Assignee
이데이 노부유키
소니 가부시끼가이샤
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Publication date
Application filed by 이데이 노부유키, 소니 가부시끼가이샤 filed Critical 이데이 노부유키
Publication of KR960038717A publication Critical patent/KR960038717A/ko
Application granted granted Critical
Publication of KR100386184B1 publication Critical patent/KR100386184B1/ko

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Classifications

    • 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
    • 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
    • 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
    • G09G2310/0294—Details of sampling or holding circuits arranged for use in a driver for data electrodes
    • 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance

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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)
  • Transforming Electric Information Into Light Information (AREA)
  • Liquid Crystal (AREA)

Abstract

복수화소동시구동방식에 있어서, 표시패널에 공급되는 영상신호에 포함되는 샘플홀드노이즈를 미리 제거한다. 영상신호처리회로는 외부의 타이밍신호원(1)으로부터 공급되는 타이밍신호 PS/H에 따라서 동작하고, 외부의 영상신호원(2)으로부터 공급되는 입력영상신호 Vsigin를 지연처리하여 출력영상신호 VS/H를 생성한다. 이 영상신호처리회로는 제1 샘플홀드회로(3)와 제2 샘플홀드회로(4)와 차동(差動)회로(5)를 구비하고 있다. 제1 샘플홀드회로(3)는 타이밍신호 PS/H에 따라서 입력영상신호 Vsigin를 반복하여 샘플홀드한다. 제2 샘플홀드회로(4)는 동일한 타이밍신호 PS/H에 따라서 동시에 소정의 참조신호 Vref를 반복하여 샘플홀드한다. 차동회로(5)는 샘플홀드 후의 입력영상신호 VsigS/H 및 샘플홀드 후의 참조신호 VrefS/H를 서로 차분(差分)처리하여, 타이밍신호 PS/H에 동기(同期)한 샘플홀드노이즈를 제거한 출력영상신호 VS/H를 생성한다.

Description

표시장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 관한 영상신호처리회의 기본적 구성을 나타낸 블록도, 제2도는 제1도에 나타낸 영상신호처리회로의 동작설명을 위한 파형도

Claims (3)

  1. 서로 직교하는 게이트라인과 신호라인의 각 교차부에 배열한 화소, 및 복수의 영상신호를 소정 갯수 신호라인의 조마다 분배하여 복수 화소를 동시에 구동하는 구동회로를 구비한 표시패널과, 미리 화소의 배열피치에 따라서 복수의 원영상(原映像)신호를 상대적으로 지연처리하여 얻어지는 이 복수의 영상신호를 이 표시패널에 공급하는 비디오드라이버와, 이 표시패널 및 이 비디오드라이버에 타이밍신호를 공급하여 이 구동회로의 복수화소동시구동 및 이 비디오드라이버의 지연처리를 동기적(同期的)으로 제어하는 타이밍제너레이터를 구비한 표시장치로서, 상기 비디오드라이버는 이 타이밍제너레이터로부터 입력된 이 타이밍신호에 따라서 외부입력된 원영상신호를 반복하여 샘플홀드하는 제1 샘플홀드수단과, 동일하게 이 타이밍신호에 따라서 소정의 참조신호를 반복하여 샘플홀드하는 제2 샘플홀드수단과, 샘플홀드 후의 원영상신호와 동일하게 샘플홀드 후의 참조신호와를 차분(差分)처리하여 샘플홀드에 기인하는 노이즈를 제거한 영상신호를 생성하는 차동(差動)수단을 구비하고 이는 것을 특징으로 하는 표시장치.
  2. 제1항에 있어서, 상기 제2 샘플홀드수단은 일정 전압의 참조신호를 반복하여 샘플홀드하여 의도적으로 샘플홀드에 기인하는 노이즈를 혼입하는 것을 특징으로 하는 표시장치.
  3. 외부로부터 공급되는 입력영상신호를 동일하게 외부로부터 공급되는 타이밍신호에 따라서 지연처리하여 출력영상신호를 생성하는 영상신호처리회로로서, 이 타이밍신호에 따라서 이 입력영상신호를 반복하여 샘플홀드하는 제1 샘플홀드수단과, 동시에 이 타이밍신호에 따라서 소정의 참조신호를 반복하여 샘플홀드하는 제2샘플홀드수단과, 샘프홀드 후의 입력영상신호 및 참조신호를 서로 차분처리하여 이 타이밍신호에 동기한 샘플홀드노이즈를 제거한 출력영상신호를 생성하는 차동수단을 구비하고 있는 것을 특징으로 하는 영상신호처리신호.
KR1019960010394A 1995-04-11 1996-04-08 표시장치 KR100386184B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7110182A JPH08286642A (ja) 1995-04-11 1995-04-11 表示装置
JP95-110182 1995-04-11

Publications (2)

Publication Number Publication Date
KR960038717A true KR960038717A (ko) 1996-11-21
KR100386184B1 KR100386184B1 (ko) 2003-08-19

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ID=14529130

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Application Number Title Priority Date Filing Date
KR1019960010394A KR100386184B1 (ko) 1995-04-11 1996-04-08 표시장치

Country Status (7)

Country Link
US (1) US5936617A (ko)
EP (1) EP0737958A3 (ko)
JP (1) JPH08286642A (ko)
KR (1) KR100386184B1 (ko)
MY (1) MY112966A (ko)
SG (1) SG67340A1 (ko)
TW (1) TW418379B (ko)

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Also Published As

Publication number Publication date
TW418379B (en) 2001-01-11
EP0737958A2 (en) 1996-10-16
US5936617A (en) 1999-08-10
EP0737958A3 (en) 1997-12-03
MY112966A (en) 2001-10-31
JPH08286642A (ja) 1996-11-01
SG67340A1 (en) 1999-09-21
KR100386184B1 (ko) 2003-08-19

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