KR920016890A - 액정표시장치 - Google Patents

액정표시장치 Download PDF

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KR920016890A
KR920016890A KR1019920001580A KR920001580A KR920016890A KR 920016890 A KR920016890 A KR 920016890A KR 1019920001580 A KR1019920001580 A KR 1019920001580A KR 920001580 A KR920001580 A KR 920001580A KR 920016890 A KR920016890 A KR 920016890A
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liquid crystal
display device
crystal display
molecular orientation
substrate
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KR1019920001580A
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KR960004126B1 (ko
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기미이끼 나까무라
히데후미 요시다
가즈띠끼 하니오끼
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세까자와 다다시
후지쓰 가부시끼가이샤
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/54—Additives having no specific mesophase characterised by their chemical composition
    • C09K19/542—Macromolecular compounds
    • 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
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K2019/0444—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group
    • C09K2019/0448—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate
    • 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
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133765—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers without a surface treatment

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

내용 없음

Description

액정표시장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 일실시예의 원리를 설명하는 개략도, 제2도는 본 발명의 제1실시예의 투과율-공급전압 특성도, 제3도는 본 발명의 제2실시예의 원리 설명 개략도로서, 제3(A)도는 전압이 공급되지 않는 상태도이고, 제3(B)도는 전압공급 상태도.

Claims (17)

  1. 작은 공산을 사이에 두고 서로 대향하도록 구동전극과 얼라인먼트층이 각각 적층 형성된 한쌍의 투명기판을 배치하고, 상기 공간속에 액정을 충전 밀봉하여 된 액정셀을 갖는 액정표시장치에 있어서, 액정의 분자는 기판표면에 대해 트위스트상태 및 균질 및 유사상태로 기판표면의 수직축을 따라 배향되고, 상기 기판으로부터 임의 거리 격리되어 기판표면에 평행한 평면 내측의 액정분자배향이 상기 평면 내측에서 불규칙한 것이 특징인 액정표시장치.
  2. 제1항에 있어서, 상기 얼라인먼트층이 연마처리된 특징인 액정표시 장치.
  3. 제1항에 있어서, 액정분자의 배향을 방해하는 물질이 첨가된 것이 특징인 액정표시 장치.
  4. 제3항에 있어서, 상기 액정배향을 방해하는 물질은 망상물질인 것이 특징인 액정표시 장치.
  5. 제4항에 있어서, 상기 망상물질은 작은 간격을 사이에 두고 상기 액정층 내측에 불연속으로 형성된 것이 특징인 액정표 장치.
  6. 제4항에 있어서, 상기 망상물질은 상기 액정내에 분산된 복수의 작은 덩어리들로서 형성된 것이 특징인 액정 표시 장치.
  7. 제4항에 있어서, 상기 망상물질은 유기 중합체로 구성된 것이 특징인 액정표시장치.
  8. 제1항에 있어서, 상기 망상물질은 광중합성 중합체인 것이 특징인 액정표시 장치.
  9. 제4항에 있어서, 상기 망상물질은 굴절률(ηep,ηop)과 액정의 굴절률(ηep,ηop)간의 차는 ±0.1이내인 것이 특징인 액정표시 장치.
  10. 제4항에 있어서, 상기 망상물질의 분자배향은 액정의 분자배향은 액정의 분자배향에 상응하도록 형성된 것이 특징인 액정표시 장치.
  11. 제4항에 있어서, 상기 망상물질의 분자배향은 액정의 분자배향에 상응하며 또한 제조중 상기 구종전극들간에 전압을 공급하는 동안 형성되는 것이 특징인 액정표시 장치.
  12. 제1항에 있어서, 상기 액정셀은 콜레스테릭 액정 또는 치랄 네마틱 액정을 충전 밀봉하여 형성되고, 상기 액정의 트위스트 개시점에서 액정분자 배향이 불규칙하게 되는 것이 특징인 액정표시 장치.
  13. 제1항에 있어서, 상기 액정셀은 콜레스테릭 액정 또는 치랄 네마틱 액정을 충전 밀봉하여 형성되고, 상기 액정의 트위스트 개시점에서 액정분자 배향이 불규칙하며, 상기 액정은 나선축이 투명기판에 수직한 평면나선구조를 가지며 액정층의 두께(d)와 상기 액정의 굴절률부등방성(△n)의 곱(△nㆍd)이 0.4~1.2㎛의 범위내에 있고 또한 상기 액정의 트위스트각이 45°~135°의 범위내인 것이 특징인 액정표시 장치.
  14. 상기 액정셀은 콜레스테릭 액정 또는 치랄 네마틱 액정을 충전 밀봉하여 형성되고, 상기 액정의 트위스트 개시점에서 액정분자 배향이 불규칙하며, 상기 액정층내에 망상물질 또는 작은 입상덩어리들이 형성된 것이 특징인 액정표시 장치.
  15. 제1항에 있어서, 상기 액정셀은 콜레스테릭 액정 또는 치랄 네마틱 액정을 충전 밀봉하여 형성되고, 상기 액정의 트위스트 개시점에서 액정분자 배향이 불규칙하며, 상기 구동전극들상에 형성된 상기 얼라인먼트층들상에 돌출부들이 형성되는 것이 특징인 액정표시장치.
  16. 제1항에 있어서, 상기 액정분자 배향의 트위스트 방해 물질은 상기 액정셀에 대해 0.1~20wt%의 양으로 첨가된 것이 특징인 액정표시 장치.
  17. 제1항에 있어서, 상기 기판으로부터 상기 임의 거리는 상기 액정표시판넬의 깊이방향으로 상기 기판의 계면으로부터 상기 기판의 중심까지인 것이 특징인 액정표시장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920001580A 1991-02-01 1992-02-01 액정표시장치 KR960004126B1 (ko)

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Application Number Priority Date Filing Date Title
JP1178791 1991-02-01
JP91-11787 1991-02-01
JP6047591 1991-03-25
JP91-60475 1991-03-25
JP91-62309 1991-03-27
JP6230991 1991-03-27

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KR920016890A true KR920016890A (ko) 1992-09-25
KR960004126B1 KR960004126B1 (ko) 1996-03-26

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EP (1) EP0497619B1 (ko)
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JP2801102B2 (ja) 1998-09-21
US5189540A (en) 1993-02-23
KR960004126B1 (ko) 1996-03-26
JPH0527242A (ja) 1993-02-05
EP0497619A2 (en) 1992-08-05
EP0497619A3 (en) 1992-12-16

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