KR920016892A - 액정표시소자 - Google Patents

액정표시소자 Download PDF

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Publication number
KR920016892A
KR920016892A KR1019920001857A KR920001857A KR920016892A KR 920016892 A KR920016892 A KR 920016892A KR 1019920001857 A KR1019920001857 A KR 1019920001857A KR 920001857 A KR920001857 A KR 920001857A KR 920016892 A KR920016892 A KR 920016892A
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KR
South Korea
Prior art keywords
liquid crystal
optically anisotropic
crystal cell
material layer
crystal display
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KR1019920001857A
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English (en)
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KR960006742B1 (ko
Inventor
마사히토 이시카와
준코 히라타
유조 히사타케
히토시 하토
Original Assignee
아오이 죠이치
가부시키가이샤 도시바
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Publication of KR960006742B1 publication Critical patent/KR960006742B1/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
    • 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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-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
    • 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
    • G02F1/133636—Birefringent elements, e.g. for optical compensation with twisted orientation, e.g. comprising helically oriented LC-molecules or a plurality of twisted birefringent sublayers
    • 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
    • G02F1/133365—Cells in which the active layer comprises a liquid crystalline polymer
    • 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

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Liquid Crystal (AREA)
  • Polarising Elements (AREA)

Abstract

내용 없음

Description

액정표시소자
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 실시예1의 액정표시소자의 구성을 나타내는 분해사시도, 제4도는 수직배열액정셀의 굴절을 타원체를 나타낸 도면, 제5도는 TN 방식의 액정셀에 전압인가시의 분자배열상태를 나타내는 도면.

Claims (6)

  1. 2장의 편광판과, 2장의 편광판 사이에 배치되어, 2장의 기판사이에서 액정이 전압무인가시에 트위스트 배향을 하고있는 구동용액정셀 및, 광축이 연속적으로 트위스트 배열된 광학 이방성 물질층에서, 상기 광학이방물질층의 트위스트축이 구동용 액정셀의 기판표면에 대해 수직으로 설정되어, 1층이상의 광학이방성 물질층으로 형성된 적어도 1개의 광학이방소자를 구비하며, 상기 광학이방소자의 가시광에 대한 선광성이 상기 액정셀의 가시광에 대한 선광성 보다 작은 것을 특징으로 하는 액정표시소자.
  2. 제1항에 있어서, 구동용 액정셀을 자연값을 R1〔nm〕, 트위스트각을 T1〔deg〕으로하고, 광학이방소자의 자연값을 R2〔nm〕, 트위스트각을 T2〔deg〕로 하면, 상기 구동용액정셀 및 광학이방소자(R1/T1), (R2/T2)는 (R1/T1)〉(R2/T2)인것을 특징으로 하는 액정표시소자.
  3. 제1항 또는 제2항에 있어서, 광학이방소자의 광학이방성 물질층의 굴절율이방성을 △n, 광축의 트위스트피치길이를 P로 하면, △n×P의 값이 가시의 파장범위보다 작은 것을 특징으로 하는 액정표시 소자.
  4. 제1항 또는 제2항에 있어서, 광학이방소자의 광학이방성물질층이 액정으로 형성되는 것을 특징으로 하는 액정표시소자.
  5. 제1항 또는 제2항에 있어서, 광학이방소자의 광학이방성 물질층이 고분자층으로 형성되는 것을 특징으로 하는 액정표시소자.
  6. 제1항 또는 제2항에 있어서, 한계값 전압의 인가시 구동용 액정셀의 배열상태는 액정분자의 틸트각이 배향면 부근과 중앙부근에서 다르고, 또, 트위스트각은 액정층의 두께에 대해서 비선형으로 배열하고 있는 것을 특징으로 하는 액정표시소자.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920001857A 1991-02-07 1992-02-07 액정표시소자 KR960006742B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP91-038044 1991-02-07
JP3804491 1991-02-07
JP4010559A JP2721284B2 (ja) 1991-02-07 1992-01-24 液晶表示素子および光学異方素子
JP92-010559 1992-01-24

Publications (2)

Publication Number Publication Date
KR920016892A true KR920016892A (ko) 1992-09-25
KR960006742B1 KR960006742B1 (ko) 1996-05-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920001857A KR960006742B1 (ko) 1991-02-07 1992-02-07 액정표시소자

Country Status (6)

Country Link
US (1) US5241408A (ko)
EP (1) EP0498614B1 (ko)
JP (1) JP2721284B2 (ko)
KR (1) KR960006742B1 (ko)
DE (1) DE69210638T2 (ko)
TW (1) TW209894B (ko)

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Also Published As

Publication number Publication date
KR960006742B1 (ko) 1996-05-23
JPH0540277A (ja) 1993-02-19
DE69210638D1 (de) 1996-06-20
EP0498614B1 (en) 1996-05-15
US5241408A (en) 1993-08-31
EP0498614A2 (en) 1992-08-12
EP0498614A3 (en) 1992-12-02
TW209894B (ko) 1993-07-21
JP2721284B2 (ja) 1998-03-04
DE69210638T2 (de) 1996-11-14

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