KR910017219A - 다계조액정 표시장치 - Google Patents

다계조액정 표시장치 Download PDF

Info

Publication number
KR910017219A
KR910017219A KR1019910003735A KR910003735A KR910017219A KR 910017219 A KR910017219 A KR 910017219A KR 1019910003735 A KR1019910003735 A KR 1019910003735A KR 910003735 A KR910003735 A KR 910003735A KR 910017219 A KR910017219 A KR 910017219A
Authority
KR
South Korea
Prior art keywords
voltage
liquid crystal
circuit
gradation
crystal display
Prior art date
Application number
KR1019910003735A
Other languages
English (en)
Inventor
키꾸오 오소
코오지 타카하시
노부타케 코니시
즁이찌 오오와다
타케시 타나까
Original Assignee
미따 가쯔시게
가부시기가이샤 히다찌세이사구쇼
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 미따 가쯔시게, 가부시기가이샤 히다찌세이사구쇼 filed Critical 미따 가쯔시게
Publication of KR910017219A publication Critical patent/KR910017219A/ko

Links

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
    • G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • 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
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel 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
    • 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
    • G09G2320/0204—Compensation of DC component across the pixels in flat 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0219—Reducing feedthrough effects in active matrix panels, i.e. voltage changes on the scan electrode influencing the pixel voltage due to capacitive coupling
    • 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
    • G09G2320/028—Improving the quality of display appearance by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/041—Temperature compensation
    • 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
    • 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
    • G09G2330/08—Fault-tolerant or redundant circuits, or circuits in which repair of defects is prepared
    • 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

Abstract

내용 없음

Description

다계조액정 표시장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 관한 액정의 다계조사표시에 있어서의 시각보정방식의 원리를 설명하기 위한 특성도, 제2도는 다계조표시에 있어서 시각보정기능을 가진 구동전압 발생회로의 일실시예를 표시한 기본적 회로도, 제3도는 상기 전압가변수단(1)을 사용한 조정에 의한 휘도-시각곡선도.

Claims (22)

  1. 액정표시패널에 대해서 상하방향으로 다른 적어도 2개의 시각에 대응한 휘도-전압특성의 기울기로 각각 따른 직선의 연장선상의 교차점에 의거하여 근사적으로 구하게되는 전압을 기준전압으로하고, 상기 시각에 대응하여 변화시키게되는 전압을 형성해서, 이 전압에 연동된 분압전압에 의해 보정된 다계조 표시를 위한 구동접압을 얻을 수 있는 것을 특징으로 하는 액정의 다계조표시에 있어서의 시각보정방식.
  2. 액정표시패널에 대해서 상하방향으로 다른 적어도 2개의 시각에 대응한 휘도-전압특성의 기울기로 각각 따른 직선의 연장선상의 교차점에 의거하여 근사적으로 구하게되는 전압을 기준전압으로하고, 상기 시각에 대응하여 변화시키게되는 흑레벨의 전압을 형성하고, 이 전압과 백레벨에 대응한 액정의 시각적 한계치 전압과의 범위에서 입력되는 애널로그신호의 최대진폭을 제어하는것을 특징으로하는 액정의 다계조표시에 있어서의 시각보정방식.
  3. TFT액티브 매트릭스구성의 액정표시패널에 대해서 상하방향으로 다른 적어도 2개의 시각에 대응한 휘도-전압특성의 기울기로 각각 따른 직선의 연장선상에서의 교차점에 의거하여 근사적으로 구하게 된느 전압을 기준전압으로하고, 상기 시각에 대응하여 변화시키게되는 전압을 형성해서, 이 전압에 연동된 분압전압에 의해 다계조표시를 위한 구동전압을 형성하는 것을 특징으로 하는 다계조 액정표시장치.
  4. 제3항에 있어서, 상기 다계조표시를 위한 최대휘도와 최소휘도에 대응한 구동전압은, 상기 분압전압과는 독립한 전압으로 되는것을 특징으로 하는 다계조액정표시장치.
  5. 제3항에 있어서, 상기 기준전압은, TFT트랜지스터의 드레인이 결합되는 신호선진국에 공급되는 것을 특징으로하는 다계조액정표시장치.
  6. 제3항에 있어서, 상기 기준전압은, 조정가능하게 되는 것을 특징으로하는 다계조액정표시장치.
  7. 제3항에 있어서, 상기 분압전압은, 직렬형태로 접속된 저항소자에 의거하여 형성되는 것을 특징으로 하는 다계조액정표시장치.
  8. 제6항에 있어서, 상기 조정가능하게되는 기준전압은, 온도보상회로의 출력에 의해 자동적으로 변화되는 것을 특징으로 하는 다계조 액정표시장치.
  9. 제3항에 있어서, 상기 TFT액티브매트릭스구성의 액정표시패널은, 컬러필터가 설치되므로서 다색표시를 행하도록한 것을 특징으로 하는 다계조액정표시장치.
  10. 청구범위 제3항 기재의 다계조 액정표시장치는, 마이크로콤퓨터를 실장한 전자장치의 모니터로서 사용되는 것을 특징으로 하는 다계조액정표시장치.
  11. TFT액티브 매트릭스구성의 액정표시패널에 대해서 상하방향으로 다른 적어도 2개의 시각에 대응한 휘도-전압특성의 기울기로 각각 따른 직선의 연장선상에서의 교차점에 의거하여 근사적으로 구하게되는 전압을 기준전압으로하고, 상기 시각에 대응하여 변화시키게되는 전압에 연동된 다계조표시용의 구동전압을 형성하는 분압회로와, 액정의 교류화신호에 따라 상기기준전압을 발생시키는 회로 및 분압회로에 국성반전시킨 동작전압을 공급하는 스위치회로를 포함하는 것을 특징으로 하는 다계조액정표시장치의 구동전압 발생회로.
  12. 제11항에 있어서, 상기 분압회로에 의해 형성된 다계조용의 구동전압은, 전압플로워회로와, 상기 출력전압을 받아서 위상반전을 행하는 반전증폭회로에 각각 공급되어, 상기 전압 폴로워회로와 반전증폭회로를 통하여 형성되는 구동전압은, 액정패널의 하나간격의 신호선에 각각 대응해서 상하로 배분된 구동회로에 대응하여 각각 공급되는 것을 특징으로하는 다계조액정표시장치의 구동전압 발생회로.
  13. 제11항에 있어서, 상기 분압회로는 2개의 분압회로로 이루어지고, 한쪽의 분압회로에는 상기 스위치회로를 통하여 교류화신호에 따라서 극성이 반전되는 동작전압이 공급되고, 다른쪽의 분압회로에는 극성반전증폭회로를 개재해서 동작전압이 공급되어 이들2개의 분압회로의 분압출력전압은, 각각 전압폴로워회로를 개지해서 액정패널의 하나간격의 신호선에 각각 대응해서 상하로 배분된 구동회로에 대응하여 공급되는 것을 특징으로 하는 다계조액정표시장치의 구동전압 발생회로.
  14. 제11항에 있어서, 상기 기준전압은, 그 온도의 존성에 대응한 온도보상회로에 의해 자동적으로 온도 보상되는 것을 특징으로하는 다계조액정표시장치의 구동전압 발생회로.
  15. 제11항에 있어서, 상기 분압회로에는, 시각보정 및 온도보상용이 행하여진 동작전압이 저출력임피이던스의 버퍼앰프를 개재해서 공급되는 것을 특징으로하는 다계조액정표시장치의 구동전압 발생회로.
  16. 제11항에 있어서, 상기 액정교류화구동전압을 형성하기 위한 스위치회로를 통한 전압은, TFT트랜지스터의 실효적인 한계치전압에 균형이 잡힌 쌍방향의 레벨시프트전압을 형성하는 레벨시프트회로에 공급되어, 이 레벨시프트회로를 개재해서 액정의 신호선에 부여되는 절대치적인 최대구동전압을 형성하는 것을 특징으로 하는 다계조액정표시장치의 구동전압 발생회로.
  17. 제11항에 있어서, 상기 액정 교류화 신호에 의해 스위치 제어되는 스위치회로를 개재해서 극성의 전환이 행하여지는 전압을 시각보정 또는 온도보상전압 발생회로에 공급하고, 거기에서 발생된 전압을 저출력 임피이던스의 버퍼앰프를 통하여 다계조용의 구동전압을 형성하는 분압회로에 부여하는 것을 특징으로하는 다계조액정표시장치의 구동전압 발생회로.
  18. 다계조용의 구동전압을 발생시키는 전원회로가 탑재된 실장기판이, 액정표시패널의 이면쪽에 백라이트를 끼우도록 맞포개져서 배치되는 것을 특징으로하는 다계조 액정표시장치.
  19. TFT액티브 매트릭스구성의 액정표시패널에 대해서 상하방향으로 다른 적어도 2개의 시각에 대응한 휘도-전압특성의 기울기로 각각 따른 직선의 연장선상에서의 교차점에 의거하여 근사적으로 구하게되는 전압을 기준 전압으로하고 상기 시각에 대응해서 변화시키게되는 전압에 연동한 다계조표시용의 구동전압을 형성하는 분압회로와, 액정표시화면의 상하방향의 시각의 상위에 대응한 수직 방향의 주사동작에 연동해서 변화하는 동적인 시각보정전압을 형성하는 보정전압 파형발생회로를 포함하고, 상기 동적인 시각보정전압에 의해 상기 분압회로에 의해 형성되는 다계조용의 구동전압을 레벨변조하는 것을 특징으로하는 다계조 액정표시장치.
  20. 제19항에 있어서, 상기 분압회로에는, 커플링용량을 개재해서 상기 동적인 시각보정전압이 전달되는 것을 특징으로하는 다계조표시장치.
  21. 제19항에 있어서, 상기 보정전압파형 발생회로는, 프레임마다 발생하는 펄스신호를 받는 적분회로에 의해 구성되는 것을 특징으로하는 다계조액정표시장치.
  22. 제19항에 있어서, 상기 보정전압 파형발생회로는, 프렘임마다 리세트가 행하여지고, 선택되는 주사선에 대응한 클록펄스를 받는 카운터회로와, 이 카운터회로의 계수출력을 2차 신호에 의해 표현된 시각보정전압신호로 변환하는 디코우더회로와, 이 디코우더회로의 출력신호를 받아서 애널로그보정전압 파형을 발생시키는 D/A 변환기를 포함하는 것을 특징으로 하는 다계조 액정표시장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910003735A 1990-03-08 1991-03-08 다계조액정 표시장치 KR910017219A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2-57781 1990-03-08
JP2057781A JP2951352B2 (ja) 1990-03-08 1990-03-08 多階調液晶表示装置

Publications (1)

Publication Number Publication Date
KR910017219A true KR910017219A (ko) 1991-11-05

Family

ID=13065420

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910003735A KR910017219A (ko) 1990-03-08 1991-03-08 다계조액정 표시장치

Country Status (3)

Country Link
US (1) US5250937A (ko)
JP (1) JP2951352B2 (ko)
KR (1) KR910017219A (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100812721B1 (ko) * 2004-04-28 2008-03-12 캐논 가부시끼가이샤 컬러표시소자

Families Citing this family (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5751261A (en) * 1990-12-31 1998-05-12 Kopin Corporation Control system for display panels
US5650796A (en) * 1991-03-08 1997-07-22 Hitachi, Ltd. Matrix liquid crystal display having function to correct viewing angle
US5495287A (en) * 1992-02-26 1996-02-27 Hitachi, Ltd. Multiple-tone display system
JP2831518B2 (ja) * 1992-10-30 1998-12-02 シャープ株式会社 表示装置の駆動回路
US5510807A (en) * 1993-01-05 1996-04-23 Yuen Foong Yu H.K. Co., Ltd. Data driver circuit and associated method for use with scanned LCD video display
US5471229A (en) * 1993-02-10 1995-11-28 Canon Kabushiki Kaisha Driving method for liquid crystal device
EP0618562B1 (en) * 1993-03-30 1998-06-03 Asahi Glass Company Ltd. A display apparatus and a driving method for a display apparatus
FR2708129B1 (fr) * 1993-07-22 1995-09-01 Commissariat Energie Atomique Procédé et dispositif de commande d'un écran fluorescent à micropointes.
KR100343513B1 (ko) * 1993-07-29 2003-05-27 히다찌디바이스엔지니어링 가부시기가이샤 액정구동방법과액정표시장치
US6448944B2 (en) 1993-10-22 2002-09-10 Kopin Corporation Head-mounted matrix display
US7310072B2 (en) 1993-10-22 2007-12-18 Kopin Corporation Portable communication display device
KR0136966B1 (ko) * 1994-01-26 1998-04-28 김광호 시야각 조절기능을 구비한 액정표시장치용 그레이 전압 발생장치
TW275684B (ko) 1994-07-08 1996-05-11 Hitachi Seisakusyo Kk
US5717418A (en) * 1994-08-30 1998-02-10 Proxima Corporation Ferroelectric liquid crystal display apparatus and method of making it
JP3555995B2 (ja) * 1994-10-31 2004-08-18 富士通株式会社 プラズマディスプレイ装置
CN1145668A (zh) * 1995-01-13 1997-03-19 精工爱普生株式会社 电源电路、液晶显示体驱动用电源以及液晶显示装置
TW320716B (ko) * 1995-04-27 1997-11-21 Hitachi Ltd
KR0149297B1 (ko) * 1995-07-12 1998-12-15 김광호 액정 표시 장치 및 그 구동 방법
KR0154832B1 (ko) * 1995-08-23 1998-11-16 김광호 액정 표시 장치
KR0149296B1 (ko) * 1995-08-29 1998-12-15 김광호 광 시야각 구동회로와 그 구동방법
US6118423A (en) 1996-01-03 2000-09-12 Texas Instruments Incorporated Method and circuit for controlling contrast in liquid crystal displays using dynamic LCD biasing
KR0182876B1 (ko) 1996-01-09 1999-05-01 구자홍 액정셀의 프리틸트방향 제어방법
JPH09281931A (ja) * 1996-04-10 1997-10-31 Fujitsu Ltd 表示装置および該表示装置の駆動回路ならびに表示装置の駆動方法
US6545654B2 (en) 1996-10-31 2003-04-08 Kopin Corporation Microdisplay for portable communication systems
JP3039404B2 (ja) * 1996-12-09 2000-05-08 日本電気株式会社 アクティブマトリクス型液晶表示装置
US6157360A (en) * 1997-03-11 2000-12-05 Silicon Image, Inc. System and method for driving columns of an active matrix display
FI107844B (fi) * 1997-11-07 2001-10-15 Nokia Display Products Oy Menetelmä värilämpötilan säätämiseksi taustavalaistussa nestekidenäytössä ja taustavalaistu nestekidenäyttö
US6414664B1 (en) 1997-11-13 2002-07-02 Honeywell Inc. Method of and apparatus for controlling contrast of liquid crystal displays while receiving large dynamic range video
JP4090569B2 (ja) * 1997-12-08 2008-05-28 株式会社半導体エネルギー研究所 半導体装置、液晶表示装置及びｅｌ表示装置
DE19808982A1 (de) 1998-03-03 1999-09-09 Siemens Ag Aktivmatrix-Flüssigkristallanzeige
JP2000039628A (ja) * 1998-05-16 2000-02-08 Semiconductor Energy Lab Co Ltd 半導体表示装置
US6611249B1 (en) * 1998-07-22 2003-08-26 Silicon Graphics, Inc. System and method for providing a wide aspect ratio flat panel display monitor independent white-balance adjustment and gamma correction capabilities
TW521240B (en) 1998-12-10 2003-02-21 Sanyo Electric Co Liquid crystal driving integrated circuit
JP3573984B2 (ja) 1998-12-15 2004-10-06 三洋電機株式会社 液晶駆動集積回路
JP2000221468A (ja) * 1999-01-29 2000-08-11 Citizen Watch Co Ltd 液晶駆動装置
KR100304261B1 (ko) * 1999-04-16 2001-09-26 윤종용 테이프 캐리어 패키지, 그를 포함한 액정표시패널 어셈블리,그를 채용한 액정표시장치 및 이들의 조립 방법
JP2000321991A (ja) * 1999-05-14 2000-11-24 Pioneer Electronic Corp 表示装置
JP4521903B2 (ja) * 1999-09-30 2010-08-11 ティーピーオー ホンコン ホールディング リミテッド 液晶表示装置
JP3993725B2 (ja) * 1999-12-16 2007-10-17 松下電器産業株式会社 液晶駆動回路，半導体集積回路及び液晶パネル
KR100683519B1 (ko) * 1999-12-23 2007-02-15 엘지.필립스 엘시디 주식회사 액정 패널의 충전 특성 보상회로 및 충전 특성 보상방법
KR100354257B1 (ko) * 2000-04-28 2002-09-28 삼성에스디아이 주식회사 액정표시장치의 콘트라스트 조절회로
JP4579377B2 (ja) * 2000-06-28 2010-11-10 ルネサスエレクトロニクス株式会社 多階調デジタル映像データを表示するための駆動回路及びその方法
MXPA02007366A (es) * 2000-11-30 2002-12-09 Thomson Licensing Sa Circuito de excitacion para el control de brillantez mejorado en pantallas de cristal liquido y metodo para el mismo..
KR100419090B1 (ko) * 2001-02-19 2004-02-19 삼성전자주식회사 시야각에 적응하는 액정 표시 장치
JP4544809B2 (ja) * 2001-07-18 2010-09-15 三星電子株式会社 液晶表示装置
JP2003122492A (ja) * 2001-10-10 2003-04-25 Wacom Co Ltd 入力システム、プログラム、および、記録媒体
KR100438827B1 (ko) * 2001-10-31 2004-07-05 삼성전기주식회사 영상의 계조 향상 방법 및 이를 수행하는 영상 표시 장치
DE10162766A1 (de) * 2001-12-20 2003-07-03 Koninkl Philips Electronics Nv Schaltungsanordnung zur Spannungsversorgung einer Flüssigkristallanzeigevorrichtung
JP2004086146A (ja) * 2002-06-27 2004-03-18 Fujitsu Display Technologies Corp 液晶表示装置の駆動方法及び駆動制御回路、及びそれを備えた液晶表示装置
CN100385491C (zh) 2002-11-20 2008-04-30 三菱电机株式会社 图像显示装置
KR100661412B1 (ko) * 2002-11-21 2006-12-27 도시바 마쯔시따 디스플레이 테크놀로지 컴퍼니, 리미티드 전압 생성 회로
JP2004301950A (ja) * 2003-03-28 2004-10-28 Aruze Corp 画像表示装置及び遊技機
JP4191521B2 (ja) * 2003-03-28 2008-12-03 アルゼ株式会社 遊技機
AU2004200860A1 (en) * 2003-03-28 2004-10-14 Aruze Corp. Gaming machine
JP4299049B2 (ja) * 2003-04-24 2009-07-22 株式会社 日立ディスプレイズ 表示デバイス用制御信号の検査方法及び検査装置並びにこの検査機能を備えた表示装置
US20050088395A1 (en) * 2003-10-28 2005-04-28 Samsung Electronics Co., Ltd. Common Voltage driver circuits and methods providing reduced power consumption for driving flat panel displays
US7436401B2 (en) * 2004-02-12 2008-10-14 Leslie Louis Szepesi Calibration of a voltage driven array
US20050210400A1 (en) * 2004-03-19 2005-09-22 Peter Hoe-Richardson Controlling display screen legibility
US7644369B2 (en) * 2004-03-19 2010-01-05 Rocket Software, Inc. Controlling display screen legibility
US20070024553A1 (en) * 2005-07-28 2007-02-01 Shigesumi Araki Liquid crystal display device, display control method and display control apparatus
US20070103412A1 (en) * 2005-11-09 2007-05-10 Pao-Yun Tang Liquid crystal display having a voltage divider with a thermistor
KR20070054802A (ko) * 2005-11-24 2007-05-30 삼성전자주식회사 액정 표시 장치의 구동 장치
KR101226435B1 (ko) * 2006-02-14 2013-01-25 삼성디스플레이 주식회사 감마기준전압 생성회로, 이를 갖는 감마전압 생성장치 및표시장치
TW200830244A (en) * 2007-01-05 2008-07-16 Novatek Microelectronics Corp Display panel and display device using the same and control-signal driving method thereof
KR101274704B1 (ko) * 2007-12-13 2013-06-12 엘지디스플레이 주식회사 데이터 구동장치 및 이를 이용한 액정 표시장치
TWI387109B (zh) * 2008-06-10 2013-02-21 Taiwan Tft Lcd Ass 薄膜電晶體的製造方法
JP2010072478A (ja) * 2008-09-19 2010-04-02 Toshiba Corp 液晶表示装置
CN101847379B (zh) * 2009-03-27 2012-05-30 北京京东方光电科技有限公司 液晶显示器的驱动电路和驱动方法
KR101050693B1 (ko) * 2010-01-19 2011-07-20 주식회사 실리콘웍스 소스 드라이버의 감마전압 출력 회로
KR101712070B1 (ko) * 2010-05-06 2017-03-06 삼성디스플레이 주식회사 전압 발생회로 및 이를 구비한 표시장치
KR20200018761A (ko) * 2018-08-10 2020-02-20 삼성디스플레이 주식회사 표시 장치
CN111028808B (zh) * 2019-12-24 2021-10-08 惠州市华星光电技术有限公司 液晶面板亮度视角调节方法、装置、系统及显示装置
GB2613267A (en) * 2020-08-31 2023-05-31 Alphamicron Incorporated Graduated electro-optic device and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58142686A (ja) * 1982-02-18 1983-08-24 Casio Comput Co Ltd 液晶テレビジヨン受像機
DE3369571D1 (en) * 1982-06-18 1987-03-05 Philips Nv Liquid-crystal display device
US4808990A (en) * 1983-11-11 1989-02-28 Sharp Kabushiki Kaisha Liquid crystal display assembly
US5066945A (en) * 1987-10-26 1991-11-19 Canon Kabushiki Kaisha Driving apparatus for an electrode matrix suitable for a liquid crystal panel
JPH01207790A (ja) * 1988-02-16 1989-08-21 Nec Corp 液晶表示器付小型装置
US5109219A (en) * 1988-11-02 1992-04-28 Moose Products, Inc. Method and apparatus for controlling and adjusting the viewing angle of a liquid crystal display
US5061920A (en) * 1988-12-20 1991-10-29 Honeywell Inc. Saturating column driver for grey scale LCD

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100812721B1 (ko) * 2004-04-28 2008-03-12 캐논 가부시끼가이샤 컬러표시소자

Also Published As

Publication number Publication date
JPH03259115A (ja) 1991-11-19
US5250937A (en) 1993-10-05
JP2951352B2 (ja) 1999-09-20

Similar Documents

Publication Publication Date Title
KR910017219A (ko) 다계조액정 표시장치
KR0176295B1 (ko) 액정 표시 장치
CN100511378C (zh) 背光驱动装置和使用其驱动背光的方法
US20070146260A1 (en) Method and apparatus for driving liquid crystal display
KR101263513B1 (ko) 액정표시장치의 백라이트 구동 장치 및 방법
KR970071448A (ko) 액정표시장치의 구동방법, 구동ic 및 구동회로
JP2003084737A (ja) 液晶表示装置及びその駆動方法
JP2737209B2 (ja) 表示装置の駆動方法
KR100840331B1 (ko) 공통 전압 발생 장치 및 이를 이용한 액정 표시 장치
KR100777347B1 (ko) 액정 표시장치를 위한 자동 휘도 조절 장치 및 방법
JP2730286B2 (ja) 表示装置の駆動方法
KR950001375A (ko) 액정매트릭스 표시장치와 그 구동방법
KR100333986B1 (ko) 킥백 전압 보상을 위한 박막 트랜지스터 액정 표시 장치구동 회로
KR100448936B1 (ko) 게이트 오프 전압을 보상하는 액정 표시 장치용 구동 회로 및구동 방법
JP4023192B2 (ja) 液晶表示装置
KR100767373B1 (ko) 액정 표시 장치의 구동 장치
KR20070053887A (ko) 액정표시장치
KR100855485B1 (ko) 액정표시장치의 백라이트 인버터
JPH06295164A (ja) 液晶表示装置
KR950019859A (ko) 플리커(flicker)보상형 액정표시패널 및 그 구동방법
JPS6425194A (en) Display device
ES8707053A1 (es) Aparato de representacion visual multiplexado
KR100357212B1 (ko) 액정표시 소자의 게이트 구동제어회로
KR940004964Y1 (ko) Tft-lcd 패널구동용 영상신호 보정회로
KR20070068096A (ko) 액정 표시 장치

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application