KR960029843A - 액정표시장치 - Google Patents

액정표시장치 Download PDF

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KR960029843A
KR960029843A KR1019960000764A KR19960000764A KR960029843A KR 960029843 A KR960029843 A KR 960029843A KR 1019960000764 A KR1019960000764 A KR 1019960000764A KR 19960000764 A KR19960000764 A KR 19960000764A KR 960029843 A KR960029843 A KR 960029843A
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South Korea
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substrates
less
pair
liquid crystal
azimuth angle
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KR1019960000764A
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오사무 이또
카쯔미 콘도
쥰이치 히라카타
유카 우쯔미
나오키 키쿠치
요시아키 나카무라
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카나이 쯔또무
가부시기가이샤 히다찌세이사구쇼
나시모토 류조
히다찌디바이스엔지니어링 가부시기가이샤
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Publication of KR960029843A publication Critical patent/KR960029843A/ko

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    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1396—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
    • G02F1/1397—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell the twist being substantially higher than 90°, e.g. STN-, SBE-, OMI-LC cells
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/40—Materials having a particular birefringence, retardation
    • 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
    • G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
    • G02F2413/02—Number of plates being 2
    • 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
    • G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
    • G02F2413/08—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates with a particular optical axis orientation

Abstract

본 발명은 종래의 컬러 STN－LCD에서 문제가 되고 있던 표시불균일이 없고, 고표시품질, 저코스트의 컬러 STN－LCD를공급하는 것을 목적으로 하고, 그 구성에 있어서, 액정층의 트위스트각을 200°이상 360°미만으로 하고 액정층의 지연을 0.80㎛ 이상, 0.90㎛ 이하로 하고, 위쪽편광판의 투과측의 방위각은 30°이상 70°미만으로, 아래쪽편광판의 투과축의 방위각은 60 이상 90°이하로 하고, 위쪽위상판의 지연상축의 방위각은 150°이상 190°이하로 하고, 아래쪽위상판의 지연상축의 방위각은 30°이상 80°이하로 하고, 위쪽위상판의 파장 550㎚에 있어서의 지연은 200㎚ 이상 300㎚ 이하로 하고, 아래쪽위상판의 파장 550㎚에 있어서의 지연은 500㎚ 이상 620㎚ 이하로 한 것을 특징으로 한 액정표시장치이다.

Description

액정표시장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 액정표시장치의 구성을 표시한 사시도.

Claims (7)

  1. 상하 1쌍의 기판과, 상기 1쌍의 기판에 끼워둔 액정층과, 상기 1쌍의 기판의 상부에 배치된 위쪽편광판과, 상기 1쌍의 기판의 하부에 배치된 아래쪽편광판과, 상기 1쌍의 기판과 위쪽편광판과의 사이에 배치된 위쪽위상판과, 상기 1쌍의 기판과 아래쪽편광판과의 사이에 배치된 아래쪽위상판을 가진 액정표시장치에 있어서,상기 액정층은 200°이상 360°미만의 트위스트각을 가지고, 액정층의 층두께와 복굴절률의 곱은 0.80㎛ 이상 0.90㎛ 이하이고, 위쪽편광판의 투과축의 방위각은 30°이상 70°이하이고, 아래쪽 편광판의 투과축의 방위각은 60°이상 90°이하이고, 위쪽위상판의 지연상측의 방위각은 150°이상 190°이하이고, 아래쪽위상판의 지연상축의 방위각은 30°이상 80°이하이고, 위쪽위상판의 파장 550㎚에 있어서의 지연은 200㎚ 이상 300㎚ 이하, 아래쪽위상판의 파장 550㎚에 있어서의 지연은 550㎚ 이상 620㎚ 이하인 것을 특징으로 하는 액정표시장치.
  2. 상하 1쌍의 기판과, 상기 1쌍의 기판에 끼워둔 액정층과, 상기 1쌍의 기판의 상부에 배치된 위쪽편광판과, 상기 1쌍의 기판의 하부에 배치된 아래쪽편광판과, 상기 1쌍의 기판과 위쪽면광판과의 사이에 배치된 위쪽위상판과, 상기 1쌍의 기판과 아래쪽편광판과의 사이에 배치된 아래쪽위상판을 가진 액정표시장치에 있어서, 상기 액정층은 200°이상 360°미만의 트위스트각을 가지고, 액정층의 층두께와 복굴절률의 곱은 0.84㎛ 이상, 0.88㎛ 이하이고, 위쪽편광판의 투과측의 방위각은 35°이상 65°이하이고, 아래쪽편광판의 투과축의 방위각은 65°이상 85°이하이고, 위쪽위상판의 지연상축의 방위각은 160°이상 180°이하이고, 라래쪽위상판의 지연상축의 방위각은 40°이상 70°이하이고, 위쪽 위상판의 파장 550㎚에 있어서, 지연은 220㎚ 이상 280㎚ 이하, 아래쪽위상판의 파장 550㎚에 있어서의 지연은 540㎚ 이상 600㎚ 이하인 것을 특징으로 하는 액정표시장치.
  3. 상하 1쌍의 기판과, 상기 1쌍의 기판에 끼워둔 액정층과, 상기 1쌍의 기판의 상부에 배치된 위쪽편광판과, 상기 1쌍의 기판의 하부에 배치된 아래쪽편광판과, 상기 1쌍의 기판과 위쪽편광판과의 사이에 배치된 위쪽위상판과, 상기 1쌍의 기판과 아래쪽편광판과의 사이에 배치된 아래쪽위상판을 가진 액정표시장치에 있어서, 상기 액정층은 200°이상 360°미만의 트위스트각을 가지고, 액정층의 층두께와 복굴절률의 곱은 0.85㎛ 이상, 0.87㎛ 이하이고, 위쪽편광판의 투과측의 방위각은 45°이상 55°이하이고, 아래쪽편광판의 투과축의 방위각은 70°이상 80°이하이고, 위쪽위상판의 지연상축의 방위각은 165°이상 180°이하이고, 아래쪽위상판의 지연상축의 방위각은 50°이상 60°이하이고, 위쪽위상판의 파장 550㎚에 있어서의 지연은 250㎚ 이상 270㎚ 이하, 아래쪽위상판의 파장 550㎚에 있어서의 지연은 540㎚ 이상 590㎚ 이하인 것을 특징으로 하는 액정표시장치.
  4. 제1항에 있어서, 상기 1쌍의 기판 중 적어도 한쪽의 위에 블랙미트릭스를 구비하고 있는 것을 특징으로 하는 액정표시장치.
  5. 제4항에 있어서, 상기 블랙매트릭스는 상기 1쌍의 기판위에 형성된 적극의 비교차부분에 배치하는 것을 특징으로 하는 액정표시장치.
  6. 제1항에 있어서, 상기 1쌍의 기판 중 적어도 한쪽의 위에 컬러필터를 구비하고 있는 것을 특징으로 하는 액정표시장치.
  7. 제1항에 있어서, 상기 1쌍의 기판 중 적어도 한쪽의 위에 주사하는 전극을 배치하고, 상기 전극에 인가되는 주사펄스간의 시간의 역수가 120㎐ 이상인 것을 특징으로 하는 액정표시장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960000764A 1995-01-20 1996-01-17 액정표시장치 KR960029843A (ko)

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JP7006935A JPH08194204A (ja) 1995-01-20 1995-01-20 液晶表示装置
JP95-6935 1995-01-20

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US (1) US5835175A (ko)
JP (1) JPH08194204A (ko)
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CN (1) CN1152723A (ko)

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US5343317A (en) * 1991-06-17 1994-08-30 Seiko Epson Corporation Optically compensating film, optical compensator, and liquid crystal display incorporating the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100813472B1 (ko) * 2002-02-15 2008-03-13 삼성전자주식회사 반사-투과형 액정 표시 장치

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JPH08194204A (ja) 1996-07-30
US5835175A (en) 1998-11-10

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