KR950033591A - 광학 보상 시이트 및 액정 디스플레이 - Google Patents

광학 보상 시이트 및 액정 디스플레이 Download PDF

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KR950033591A
KR950033591A KR1019950014315A KR19950014315A KR950033591A KR 950033591 A KR950033591 A KR 950033591A KR 1019950014315 A KR1019950014315 A KR 1019950014315A KR 19950014315 A KR19950014315 A KR 19950014315A KR 950033591 A KR950033591 A KR 950033591A
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liquid crystal
optically anisotropic
anisotropic layer
optical compensation
compensation sheet
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KR1019950014315A
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KR100267894B1 (ko
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요지 이또오
요스께 니시우라
고오 가마다
히로유끼 모리
다꾸 나까무리
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오오니시 미노루
후지사싱피르므 가부시끼가이샤
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Priority claimed from JP22671694A external-priority patent/JP3330742B2/ja
Priority claimed from JP6226715A external-priority patent/JP2706902B2/ja
Priority claimed from JP6286363A external-priority patent/JPH0850204A/ja
Priority claimed from JP32262094A external-priority patent/JP3687921B2/ja
Application filed by 오오니시 미노루, 후지사싱피르므 가부시끼가이샤 filed Critical 오오니시 미노루
Publication of KR950033591A publication Critical patent/KR950033591A/ko
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • 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
    • 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
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G02F1/133632—Birefringent elements, e.g. for optical compensation with refractive index ellipsoid inclined relative to the LC-layer surface
    • 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
    • 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
    • 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
    • G02F2413/10—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 refractive index ellipsoid inclined, or tilted, relative to the LC-layer surface O plate
    • G02F2413/105—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 refractive index ellipsoid inclined, or tilted, relative to the LC-layer surface O plate with varying inclination in thickness direction, e.g. hybrid oriented discotic LC

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

Abstract

광학 이방성층은 그의 분자내에 디스코틱 구조 단위를 갖는 화합물을 함유하고 네가티브 복굴절을 갖으며, 디스코틱 구조 단위는 광학 이방성층의 깊이 방향을 따라 변하는 각에서 투명 지지체의 평면으로부터 경사진 평면을 갖는, 투명 지지체 및 그위에 제공된 광학 이방성층을 포함하는 광학 보상 시이트가 개시되어 있다.

Description

광학 보상 시이트 및 액정 디스플레이
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 투명 필름에 대한 세 축의 굴절률을 나타내는 개략적인 도면이다. 제2도는 본 발명의 광학 이방성층의 구조를 나타내는 개략적인 도면이다. 제3도는 액정 디스플레이의 액정층의 구조를 나타내는 개략적인 도면이다.

Claims (23)

  1. 광학 이방성층이 그의 분자내에 디스코틱 구조 단위를 갖는 화합물을 함유하고 네가티브 복굴절을 가지며, 디스코틱 구조 단위는 광학 이방성층의 깊이 방향을 따라 변하는 각에서 투명 지지체의 평면으로 부터 경사진 평면을 갖는, 투명 지지체 및 그 위에 제공된 광학 이방성층을 포함하는 광학 보상 시이트.
  2. 제1항에 있어서, 광학 이방성층의 저부로 부터 깊이 방향으로 거리가 증가함에 따라 각이 증가하는 광학 보상 시이트.
  3. 제1항에 있어서, 각이 5 내지 85도의 범위내로 변하는 광학 보상 시이트.
  4. 제1항에 있어서, 광학 이방성층이 셀룰로스 에스테르를 더 함유하는 광학 보상 시이트.
  5. 제1항에 있어서, 광학 이방성층이 아세틸부티릴셀룰로스를 더 함유하는 광학 보상 시이트.
  6. 제1항에 있어서, 광학 보상 시이트가 5.0 이하의 헤이즈(haze)를 갖는 광학 보상 시이트.
  7. 제1항에 있어서, 광학 이방성층이 모노-도메인(mono-domain)조건에 있거나 또는 0.1㎛ 이하의 크기를 갖는 도메인의 조건에 있는 광학 보상 시이트.
  8. 제1항에 있어서, 배향층이 투명 지지체와 광학 이방성층 사이에 제공되는 광학 보상 시이트.
  9. 제8항에 있어서, 서빙(subbing)층이 배향층과 투명 지지체 사이에 제공되는 광학 보상 시이트.
  10. 제1항에 있어서, 광학 이방성층이 시이트의 법선으로 부터 경사진 방향으로 최소 절대 지연값을 가지며, 최소값이 0이 아닌 광학 보상 시이트.
  11. 제1항에 있어서, 투명 지지체가 80%이상의 광 투과율을 가지며 지지체의 법선 방향에 그의 광학축을 갖는 광학 보상 시이트.
  12. 광학 보상 시이트는 투명 지지체 및 그 위에 제공된 광학 이방성층을 함유하며, 광학 이방성층은 그의 분자내에 디스코틱 구조 단위를 갖는 화합물을 함유하며 네가티브 복굴절을 갖고, 디스코틱 구조 단위는 광학 이방성층의 깊이 방향을 따라 변하는 각에서 투명 지지체의 평면으로 부터 경사진 평면을 갖는; 투명 전극이 제공된 한 쌍의 기판 및 그 사이에 봉합된 트위스트 배향 네마틱 액정을 포함하는 액정 셀, 셀의 양쪽에 배열된 한쌍의 편광 시이트, 및 액정 셀과 현광 시이트 사이에 제공된 광학 보상 시이트를 포함하는 액정 디스플레이.
  13. 제12항에 있어서, 광학 이방성층의 저부로 부터 깊이 방향으로 거리가 증가함에 따라 각이 증가하는 액정 디스플레이.
  14. 제12항에 있어서, 광학 이방성층이 셀룰로스 에스테르를 더 함유하는 액정 디스플레이.
  15. 제12항에 있어서, 배향층이 투명 지지체와 광학 이방성층 사이에 제공된 액정 디스플레이.
  16. 제12항에 있어서, 광학 이방성층이 시이트의 법선으로 부터 경사진 방향으로 최소 절대 지연값을 가지며, 최소값이 0이 아닌 액정 디스플레이.
  17. 제16항에 있어서, 액정 셀의 기판이 한 방향으로 러빙된 표면을 가져 배향 표면을 얻게하고 최소 절대지연 값의 방향이 셀 상에 정사영될때 주어진 방향이 광학 보상 시이트에 인접한 액정 셀의 기판이 러빙 방향으로 90 내지 270도의 각을 갖는 방법으로 광학 보상 시이트가 배열된 액정 디스플레이.
  18. 광학 보상 시이트는 투명 지지체 및 그 위에 제공된 광학 이방성층을 함유하며, 광학 이방성층은 그의 분자내에 디스코틱 구조 단위를 갖는 화합물을 함유하며 네가티브 복굴절을 갖고, 디스코틱 구조 단위는 광학 이방성층의 깊이 방향을 따라 변하는 각에서 투명 지지체의 평면으로 부터 경사진 평면을 갖는; 투명 전극이 제공된 한 쌍의 기판, 화소의 투명 전극 및 컬러 필터, 기판 사이에서 봉합된 트위스트 배향 네마틱 액정을 포함하는 액정 셀, 셀의 양 쪽에 배열된 한 쌍의 편광 시이트, 및 액정 셀과 편광 시이트 사이에 제공된 광학 보상 시이트를 포함하는 컬러 액정 디스플레이.
  19. 제18항에 있어서, 광학 이방성층의 저부로 부터 깊이 방향으로 거리가 증가함에 따라 각이 증가하는 컬러 액정 디스플레이.
  20. 제18항에 있어서, 광학 이방성층이 셀룰로스 에스테르를 더 함유하는 컬러 액정 디스플레이.
  21. 제18항에 있어서, 배향층이 투명 지지체와 광학 이방성층 사이에 제공되는 컬러 액정 디스플레이.
  22. 제18항에 있어서, 광학 이방성층이 시이트의 법선으로 부터 경사진 지연 값의 최소 절대값을 나타내는 방향을 가지며, 광학축을 갖지 않는 컬러 액정 디스플레이.
  23. 제22항에 있어서, 액정셀의 기판이 한 방향으로 러빙된 포면을 가져 배향 표면을 얻게하고 광학 보상 시이트는 최소 절대 지연값의 방향이 셀 상에 정사영될때 주어진 방향으로 광학 보상 시이트에 인접한 액정셀의 기판의 러빙 방향으로 90 내지 270도의 각을 갖는 방법으로 광학 보상 시트가 배열된 컬러 액정 디스플레이.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950014315A 1994-05-31 1995-05-31 광학 보상 시이트 및 액정 디스플레이 KR100267894B1 (ko)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
JP11896194 1994-05-31
JP94-118961 1994-05-31
JP94-122664 1994-06-03
JP12266494 1994-06-03
JP22671694A JP3330742B2 (ja) 1994-09-21 1994-09-21 光学補償シート、及びそれを用いた液晶表示素子
JP6226715A JP2706902B2 (ja) 1994-09-21 1994-09-21 カラー液晶表示装置
JP94-226715 1994-09-21
JP94-226716 1994-09-21
JP6286363A JPH0850204A (ja) 1994-05-31 1994-11-21 光学異方素子、及びそれを用いた液晶表示装置
JP94-286363 1994-11-21
JP32262094A JP3687921B2 (ja) 1994-06-03 1994-12-26 光学異方素子を用いた液晶表示素子
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FR2693020B1 (fr) * 1992-06-26 1999-01-22 Thomson Consumer Electronics Dispositif d'affichage a cristal liquide nematique en helice.
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US5583679A (en) 1996-12-10
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DE19519928A1 (de) 1995-12-07

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