KR950006512A - 액정표시패널 - Google Patents

액정표시패널 Download PDF

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KR950006512A
KR950006512A KR1019940020725A KR19940020725A KR950006512A KR 950006512 A KR950006512 A KR 950006512A KR 1019940020725 A KR1019940020725 A KR 1019940020725A KR 19940020725 A KR19940020725 A KR 19940020725A KR 950006512 A KR950006512 A KR 950006512A
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South Korea
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liquid crystal
display panel
crystal display
panel according
substrate
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KR1019940020725A
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English (en)
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KR0161550B1 (ko
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츠요시 우에무라
신야 코사코
히데아키 모치즈키
마사오 야마모토
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모리시타 요이찌
마쯔시다덴기산교 가부시기가이샤
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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
    • G02F1/133377—Cells with plural compartments or having plurality of liquid crystal microcells partitioned by walls, e.g. one microcell per pixel
    • 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
    • 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
    • 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
    • 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
    • G02F1/133757—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 with different alignment orientations

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

Abstract

본 발명은 러빙처리가 불필요한 광시각액정표시 패널에 관한 것으로서, 액정층은 단차 또는 벽면에 의해서 구획된 액정단위셀로 이루어지고, 무전전계시에 액정분자는 기판에 대해서 실질적으로 수평으로 배열하고 있고, 또한 여러 가지의 방위를 가진 액정 도메인으로 이루어진 동시에, 상기 투명기판의 바깥쪽에 적어도 1매의 편광판을 구비함으로써, 러빙처리를 행하지 않고 시야각의 확대를 도모하는 것을 목적으로 한것으로서, 그 구성에있어서, 2매의 전극(103,104) 부착기판(101,102)에 끼워지고 적어도 기판면 부근에서는 주위가 고분자벽(110)에 의해서 포위된 대략 원형의 미소단위액정셀로 이루어지고, 또한 상기 단위액정셀의 액정층의 두께방향의 중심부를 통과해서 기판에 평행한 면에 존재하는 액정분자가 평행면 내의 여러 가지의 방향에 대해서 거의 균등한 비율로 배향하고 있고, 적어도 1매의 편광판(107,108)을 가지고, 상기 액정의 정의유전율이방성을 가진 네마틱액정재료(109)인 것을 특징으로 한 것이다.

Description

액정표시패널
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 일실시예에 의한 액정표시패널의 단면도.
제2도는 본 발명의 일실시예에 의한 액정표시패널의 90°비틀림구조를 가진 단위액정셀의 액정분자의 배향을 표시한 개념도.

Claims (13)

  1. 표면에 투명전극을 가진 적어도 1쌍의 투명기판의 사이에 액정층이 존재하는 액정표시패널에 있어서 상기 액정층은 단차 또는 벽면에 의해서 구획된 액정단위셀로 이루어지고, 무전전계시에 액정분자는 기판에 대해서 실질적으로 수평으로 배열하고 있고, 또한 여러 가지의 방위를 가진 액정도메인으로 이루어진 동시에, 상기 투명기판의 바깥쪽에 적어도 1매의 편광판을 구비한 것을 특징으로 하는 액정표시패널.
  2. 제1항에 있어서, 단차 또는 벽면에 의해서 구획된 액정단위셀이, 고분자와 액정이 복합체 및 고분자겔과 액정의 복합체로부터 선택되는 적어도 1개의 복합체인 것을 특징으로 하는 액정표시패널.
  3. 제2항에 있어서, 적어도 기판부근에서는 주위가 고분자벽에 의해서 포위된 거의 원형의 미소단위 액정셀로 이루어지고, 또한 상기 단위액정셀의 액정층의 두께방향의 중심부를 통과해서 기판에 평행한 면에 존재하는 액정분자가 평형면 내의 여러 가지 방향에 대해서 실질적으로 균등한 비율로 배향하고 있고, 액정분자가 기판계면에서 기판에 대해서 실질적으로 평행하게 배열하고 있고, 상기 액정이 정의 유전율이방성을 가진 네마틱액정재료인 것을 특징으로 하는 액정표시패널.
  4. 제3항에 있어서, 단위액정셀의 거의 중앙부에 1개의 배향결함을 가지고 있는 것을 특징으로 하는 액정표시패널.
  5. 제1항 또는 제2항에 있어서, 액정층의 비틀림각이 실질적으로 90°인 것을 특징으로 하는 액정표시패널.
  6. 제1항 또는 제2항에 있어서, 배향처리를 실시하지 않고 여러 가지의 방위를 가진 액정도메인을 형성시킨 것을 특징으로 하는 액정표시패널.
  7. 제1항 또는 제2항에 있어서, 단위액정셀의 평균직경이 액정층의 두께이상이고, 또한 화소피치 이하인 것을 특징으로 하는 액정표시패널.
  8. 제1항 또는 제2항에 있어서, 편광판의 교차각이 거의 90°인 것을 특징으로 하는 액정표시패널.
  9. 제1항 또는 제2항에 있어서, 액정재료의 자발피치 P와 액정층의 두께 d와의 비 d/p가 거의 0.25인 것을 특징으로 하는 액정표시패널.
  10. 제1항 또는 제2항에 있어서, 단차 또는 벽면에 의해서 구획된 액정단위셀이, 1개의 화소보다도 작은 것을 특징으로 하는 액정표시패널.
  11. 제1항 또는 제2항에 있어서, 단차의 높이가 셀두께보다도 작은 것을 특징으로 하는 액정표시패널.
  12. 제1항 또는 제2항에 있어서, 단차의 높이가 1㎛이상인 것을 특징으로 하는 액정표시패널.
  13. 제1항에 있어서, 여러 가지의 방위를 액정도메인으로 이루어진 액정표시패널에 있어서, 적어도 2매의 편광판을 교차시키고, 또한 교차한 편광판의 적어도 한쪽의 편광축에 시야각방향을 가진 특징으로 하는 액정표시패널.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940020725A 1993-08-25 1994-08-23 액정표시패널 KR0161550B1 (ko)

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JP21017493 1993-08-25
JP93-210174 1993-08-25

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KR950006512A true KR950006512A (ko) 1995-03-21
KR0161550B1 KR0161550B1 (ko) 1999-01-15

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US (1) US5636043A (ko)
EP (1) EP0640863B1 (ko)
KR (1) KR0161550B1 (ko)
DE (1) DE69431701T2 (ko)

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JPH06160824A (ja) * 1992-11-20 1994-06-07 Sharp Corp 高分子分散型液晶表示素子およびその製造方法
US5473450A (en) * 1992-04-28 1995-12-05 Sharp Kabushiki Kaisha Liquid crystal display device with a polymer between liquid crystal regions
JP2880354B2 (ja) * 1992-08-19 1999-04-05 シャープ株式会社 液晶表示素子及びその製造方法
JPH0667185A (ja) * 1992-08-24 1994-03-11 Toshiba Corp 液晶表示装置
US5530573A (en) * 1993-05-27 1996-06-25 Sharp Kabushiki Kaisha Multiple domain liquid crystal display having a cell thickness divided by helical pitch equal to 1/8 or less

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KR0161550B1 (ko) 1999-01-15
DE69431701D1 (de) 2002-12-19
DE69431701T2 (de) 2003-07-03
US5636043A (en) 1997-06-03
EP0640863B1 (en) 2002-11-13
EP0640863A2 (en) 1995-03-01
EP0640863A3 (en) 1995-09-27

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