[go: up one dir, main page]

KR920700412A - 액정 디스플레이 장치 - Google Patents

액정 디스플레이 장치

Info

Publication number
KR920700412A
KR920700412A KR1019900702531A KR900702531A KR920700412A KR 920700412 A KR920700412 A KR 920700412A KR 1019900702531 A KR1019900702531 A KR 1019900702531A KR 900702531 A KR900702531 A KR 900702531A KR 920700412 A KR920700412 A KR 920700412A
Authority
KR
South Korea
Prior art keywords
liquid crystal
crystal layer
birefringent plate
plate
refractive index
Prior art date
Application number
KR1019900702531A
Other languages
English (en)
Other versions
KR970009490B1 (ko
Inventor
미노루 아까쓰까
유지 소오다
가즈또시 사와다
Original Assignee
후루모또 지로
아사히가라스 가부시끼가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP1073952A external-priority patent/JP2775823B2/ja
Priority claimed from JP1085741A external-priority patent/JP2775827B2/ja
Priority claimed from JP1105865A external-priority patent/JP2915430B2/ja
Priority claimed from JP1109188A external-priority patent/JPH02291519A/ja
Priority claimed from JP1127870A external-priority patent/JP2768977B2/ja
Application filed by 후루모또 지로, 아사히가라스 가부시끼가이샤 filed Critical 후루모또 지로
Publication of KR920700412A publication Critical patent/KR920700412A/ko
Application granted granted Critical
Publication of KR970009490B1 publication Critical patent/KR970009490B1/ko
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G02F1/133634—Birefringent elements, e.g. for optical compensation the refractive index Nz perpendicular to the element surface being different from in-plane refractive indices Nx and Ny, e.g. biaxial or with normal optical axis
    • 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

Landscapes

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

Abstract

내용 없음

Description

액정 디스플레이 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1 내지 4도는 각각 본 발명의 액정 디스플레이 장치의 실시양태를 모식적으로 나타낸 투시도이며, 그중에서 제1도는 복굴절판이 액정층의 한쪽에 배치된 실시양태를 나타내며,
제2도는 복굴절판이 액정층의 양쪽에 배치된 실시예를 나타내며,
제3도는 복수의 복굴절판이 액정층의 한쪽에 배치된 실시예이고, 및
제4도는 복수의 복굴절판이 액정층의 양쪽에 각각 배치된 실시예를 나타냄.

Claims (14)

  1. 양의 유전 이방성을 갖고 키랄물질을 포함하는 네마틱 액정의 액정층(액정층은 160~300°의 꼬임각을 제공하기 위해 실질적으로 평행하게 배치된 배향층을 각각 가지며 투면 전극을 갖는 한쌍의 기판 사이에 끼워 넣음), 액정층을 끼워넣은 기판에 부착된 전극을 통하여 전압을 가하는 구동수단, 액정층 외측에 배치된 한쌍의 편광판, 및 액정층 및 액정층의 적어도 한쪽에 있는 편광판 사이에 제공된 적어도 하나의 복굴절판으로 구성된 액정 디스플레이 장치에 있어서, 액정층의 액정 분자의 굴절율의 이방성 △nl 및 액정층의 두께 d1의 곱 △nl·d1이 0.4~1.5㎛범위에 있고, 복굴절판이 3개의 주굴절율 nxny및 nz는 nx＞nz＞ny[식중에서, nx및 ny는 복굴절판의 필름 평면 방향으로의 굴절율을 나타내고 (단 nx＞ ny), nx는 복굴절판의 필름 두께 방향으로의 굴절율을 나타냄]의 관계에 있음을 특징으로 하는 액정 디스플레이 장치.
  2. 양의 유전 이방성을 갖고 키랄 물질을 포함하는 네마틱 액정의 액정층(액정층은 160~300°의 꼬임각을 제공하기 위해 실질적으로 평행하게 배치된 배향층을 각각 가지며 투명전극을 갖는 한쌍의 기판 사이에 끼워 넣음), 액정층을 끼워넣은 기판에 부착된 전극을 통하여 전압을 가하는 구동수단, 액정층 외측에 한쌍의 편광판 및 액정층 및 액정층의 적어도 한쪽에 있는 편광판 사이에 제공된 적어도 하나의 복굴절판으로 구성된 액정 디스플레이 장치에 있어서, 액정층의 액정분자의 굴절율의 이방성 △nl 및 액정층의 두께 d1의 곱 △n1·d1이 0.4~1.5㎛범위에 있고, 복굴절판은 서로 직교하는 S방향에서 3개의 다른 굴절율을 가지며, 복굴절판의 3개의 주굴절율 nxny및 nz는 nx＞nz＞ny[식중에서, nx및 ny는 각각 복굴절판의 필름 평면 방향으로의 굴절율을 나타내고 (단 nx＞ ny), nz는 복굴절판의 필름 두께 방향으로의 굴절율을 나타냄]의 관계에 있는 이축 복굴절판임을 특징으로 하는 액정 디스플레이 장치.
  3. 제2항에 있어서, 이축 복굴절판은 액정층 및 액정층의 한쪽에 있는 편광판 사이에 배치함을 특징으로 하는 액정장치.
  4. 제2항에 있어서, 이축 복굴절판은 액정층 및 액정층의 양쪽에 있는 편광판 사이에 배치함을 특징으로 하는 액정디스플레이 장치.
  5. 제5항에 있어서, 이축 복굴절판의 굴절율이 (nz-ny)/(nx-ny) ＞ 0.1임을 특징으로 하는 액정 디스플레이 장치.
  6. 양의 유전 이방성을 갖고 키랄 물질을 포함하는 네마틱 액정의 액정층(액정층은 160~300°의 꼬임각을 제공하기 위해 실질적으로 평행하게 배치된 배향층을 각각 가지며 투명전극을 갖는 한쌍의 기판 사이에 끼워 넣음), 액정층을 끼워넣은 기판에 부착된 전극을 통하여 전압을 가하는 구동수단, 액정층 외측에 배치된 한쌍의 편광판 및 액정층 및 액정층의 적어도 한쪽에 있는 편광판 사이에 제공된 적어도 하나의 복굴절판으로 구성된 액정 디스플레이 장치에 있어서, 액정층의 액정분자의 굴절율의 이방성 △n1, 및 액정층의 두께 d1의 곱 △n1. d1이 0.4~1.5㎛범위에 있고, 복굴절판은 복굴절판의 3개의 주굴절율 nxny및 nz가 nx=nz＞ny[식중에서, nx및 ny각각은 복굴절판의 필름 평면방향으로의 굴절율을 나타내고, nz는 복굴절판의 필름두께 방향으로 굴절율을 나타냄]의 관계에 있는 단일축 복굴절판임을 특징으로 하는 액정 디스플레이 장치.
  7. 제6항에 있어서, 단일측 복굴절판은 액정층 및 액정층의 한쪽에 있는 편광판 사이에 배치함을 특징으로 하는 액정 디스플레이 장치.
  8. 제6항에 있어서, 단일측 복굴절판은 액정층 및 액정층의 양쪽에 있는 편광판 사이에 배치함을 특징으로 하는 액정 디스플레이 장치.
  9. 양의 유전 이방성을 갖고 키랄 물질을 포함하는 네마틱 액정의 액정층(액정층은 160~300°의 꼬임각을 제공하기 위해 실질적으로 평행하게 배치된 배향층을 각각 가지며 투명전극을 갖는 한쌍의 기판 사이에 끼워 넣음), 액정층을 끼워넣은 기판에 부착된 전극을 통하여 전압을 가하는 구동수단, 액정층 외측에 배치된 한쌍의 편광판 및 액정층 및 액정층의 한쪽 또는 양쪽에 있는 편광판 사이에 제공된 복수의 적어도 복굴절판으로 구성된 액정 디스플레이 장치에 있어서, 액정층의 액정분자의 굴절율의 이방성 △n1 및 액정층의 두께 d1의 곱 △n1·d1이 0.4~1.5㎛의 범위에 있고, 복수의 복굴절판은 nx1＞ny1=nz1[식중에서, nx1, ny1, nz1은 복굴절판의 3개의 주굴절율을 나타내며, nx1및 ny1은 각각 복굴절판의 필름 평면 방향으로의 굴절율을 나타내고 (단 nx1〉ny1), nz1은 복굴절판의 필름 두께 방향으로의 굴절율을 나타냄]의 관계를 제공하기 위해 필름 평면에 광축을 갖는 적어도 하나의 단일축 복굴절판, 및 nz2＞nx2=ny2[식중에서, nx2는 각각 복굴절판의 필름평면 방향으로의 굴절율을 나타내고 (단 nx2=ny2), nz2는 복굴절판의 필름두께 방향으로의 굴절율을 나타냄]의 관계를 제공하기 위해 필름두께 방향으로 광축을 갖는 적어도 하나의 단일축 복굴절판으로 구성되며, 복수의 복굴절판은 nx＞nz＞ny[식중에서, 판의 두께를 고려하여 복수의 복굴절판의 직교하는 3방향으로의 산술적 의미에서의 주굴절율을 nx및 ny및 nz로 나타내고 nx및 ny는 각각 복굴절판의 필름평면 방향으로의 굴절율을 나타내고 (단 nx＞ny), nz는 복굴절판의 필름 두께 방향으로의 굴절율을 나타냄]의 관계를 갖도록 배치함을 특징으로 하는 액정 디스플레이 장치.
  10. 제9항에 있어서, 복굴절판의 굴절율이 (nz-ny)/(nx-ny)≥0.1임을 특징으로 하는 액정 디스플레이 장치.
  11. 양의 유전 이방성을 갖고 키랄 물질을 포함하는 네마틱 액정의 액정층(액정층은 160~300°의 꼬임각을 제공하기 위해 실질적으로 평행하게 배치된 배향층을 각각 가지며 투명전극을 갖는 한쌍의 기판 사이에 끼워 넣음), 액정층을 끼워넣은 기판에 부착된 전극을 통하여 전압을 가하는 구동수단, 액정층 외측에 배치된 한쌍의 편광판 및 액정층 및 액정층의 양쪽에 있는 편광판 사이에 제공된 복굴절판으로 구성된 액정 디스플레이 장치에 있어서, 액정층의 액정분자의 굴절율의 이방성 △n1 및 액정층의 두께 d1의 곱 △n1·d1이 0.4~1.5㎛범위에 있고, 복굴절판은 nx1＞ny1=nz1[식중에서, nx1〉ny1, 및 ny1은 복굴절판의 3개의 주굴절율을 나타내고, nx1및 nx1은 복굴절판의 필름 평면 방향으로의 굴절율을 나타내고 (단, nx1＞ny1), nz1은 복굴절판의 필름 두께 방향으로의 굴절율을 나타냄]의 관계를 제공하기 위해 그의 평면에 광축을 각각 갖는 제1단일축 복굴절판 및 (단 nz2, nx2=ny2[식중에서, nx2〉nz2및 nz2는 단일축 복굴절판의 주굴절율을 나타내고, nx2및 ny2는 복굴절판의 필름 평면 방향으로의 굴절율을 나타내고 (단 nx2=ny2), nz2는 복굴절판의 필름 두께 방향으로의 굴절율을 나타냄]의 관계를 제공하기 위해 필름 두께 방향으로의 광축을 각각 갖는 제2단일축 복굴절판으로 구성되어 있고, 액정층의 양쪽에 제공된 복굴절판은 한쌍의 제2단일축 복굴절판 사이에 하나의 제1단일축 복굴절판을 끼워 넣음으로써 형성된 적층 복굴절판으로 구성되며, 적층 복굴절판은 0.1≤(nz2-ny)/(nx2-ny)≤3 [식중에서, 판의 두께를 고려하여 적층 복굴절판의 직각으로 교차하는 3방향으로의 산술적 의미에서의 주굴절율은 nx, ny및 nz이고, nx및 ny는 각각 복굴절판의 필름 평면 방향으로의 굴절율을 나타내고 (단 nx＞ny)nz는 복굴절판의 필름 두께 방향으로의 굴절율을 나타냄]의 관계를 갖도록 배치함을 특징으로 하는 액정 디스플레이 장치.
  12. 제1항에 있어서, 색 필터가 셀에 형성됨을 특징으로 하는 액정 디스플레이 장치.
  13. 제12항에 있어서, 필터는 3색을 갖는 색 필터임을 특징으로 하는 액정 디스플레이 장치.
  14. 제12항에 있어서, 전극을 갖는 각각의 기판은 기판, 그위에 형성된 색 필터 및 색 필터 위에 형성된 전극으로 구성됨을 특징으로 하는 액정 디스플레이 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900702531A 1989-03-28 1990-03-26 액정 디스플레이 장치 Expired - Lifetime KR970009490B1 (ko)

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
JP1-73952 1989-03-28
JP1073952A JP2775823B2 (ja) 1989-03-28 1989-03-28 液晶表示素子
JP1-85741 1989-04-06
JP1085741A JP2775827B2 (ja) 1989-04-06 1989-04-06 液晶表示素子
JP1-105865 1989-04-27
JP1105865A JP2915430B2 (ja) 1989-04-27 1989-04-27 液晶表示素子
JP1109188A JPH02291519A (ja) 1989-05-01 1989-05-01 液晶表示素子
JP1-109188 1989-05-01
JP1-127870 1989-05-23
JP1127870A JP2768977B2 (ja) 1989-05-23 1989-05-23 液晶素子及びそれを用いた装置
JP17796489 1989-07-12
JP1-177964 1989-07-12
PCT/JP1990/000394 WO1990011546A1 (en) 1989-03-28 1990-03-26 Liquid crystal display device

Publications (2)

Publication Number Publication Date
KR920700412A true KR920700412A (ko) 1992-02-19
KR970009490B1 KR970009490B1 (ko) 1997-06-13

Family

ID=27551281

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900702531A Expired - Lifetime KR970009490B1 (ko) 1989-03-28 1990-03-26 액정 디스플레이 장치

Country Status (5)

Country Link
US (6) US5194975A (ko)
EP (1) EP0425685B1 (ko)
KR (1) KR970009490B1 (ko)
DE (1) DE69020855T2 (ko)
WO (1) WO1990011546A1 (ko)

Families Citing this family (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5194975A (en) * 1989-03-28 1993-03-16 Asahi Glass Company Ltd. Liquid crystal display device having biaxial birefringent plates at each side of the liquid crystal layer
JPH04194820A (ja) * 1990-11-22 1992-07-14 Sharp Corp 液晶表示装置
EP0522510B1 (en) * 1991-07-08 1996-10-02 Asahi Glass Company Ltd. Driving method of driving a liquid crystal display element
US5440413A (en) * 1991-09-30 1995-08-08 Casio Computer Co., Ltd. Liquid crystal display device with 2 adjacent biaxial retardation plates having Ny <Nz <Nx
JPH05158016A (ja) * 1991-12-10 1993-06-25 Sharp Corp 液晶表示装置
JP2796210B2 (ja) * 1992-01-30 1998-09-10 シャープ株式会社 液晶表示装置
US5583678A (en) * 1993-03-12 1996-12-10 Casio Computer Co., Ltd. Color liquid crystal display apparatus
CA2119484A1 (en) * 1993-03-25 1994-09-26 Toshihiro Ohnishi Optically anisotropic material, process for producing it, and retardation plate and liquid crystal display device using same
US5585950A (en) * 1993-04-12 1996-12-17 Casio Computer Co., Ltd. STN LCD device displaying multiple colors in response to different voltages which includes a retardation plate
JP2624116B2 (ja) * 1993-04-22 1997-06-25 松下電器産業株式会社 液晶表示装置およびそれを用いた投写型表示装置
US5986733A (en) * 1993-04-30 1999-11-16 Rockwell International Corporation Negative optical compensator tilted in respect to liquid crystal cell for liquid crystal display
JPH0784252A (ja) * 1993-09-16 1995-03-31 Sharp Corp 液晶表示装置
JP3325973B2 (ja) * 1993-10-22 2002-09-17 富士写真フイルム株式会社 光学異方素子およびそれを用いた液晶表示素子
US5907378A (en) * 1993-12-15 1999-05-25 Ois Optical Imaging Systems, Inc. Normally white twisted nematic liquid crystal display including retardation films for improving viewing characteristics
US5570214A (en) * 1993-12-15 1996-10-29 Ois Optical Imaging Systems, Inc. Normally white twisted nematic LCD with retardation films on opposite sides of liquid crystal material for improved viewing zone
US5576861A (en) * 1993-12-15 1996-11-19 Ois Optical Imaging Systems, Inc. Liquid crystal display having a retarder with 100-200nm retardation and having high contrast viewing zone centered in positive or negative vertical region
US5594568A (en) * 1993-12-15 1997-01-14 Ois Optical Imaging Systems, Inc. LCD with a pair of retardation films on one side of normally white liquid crystal layer
US6292242B1 (en) 1993-12-15 2001-09-18 Ois Optical Imaging Systems, Inc. Normally white twisted nematic LCD with positive uniaxial and negative biaxial retarders
US5657140A (en) * 1993-12-15 1997-08-12 Ois Optical Imaging Systems, Inc. Normally white twisted nematic LCD with positive and negative retarders
US6096375A (en) * 1993-12-21 2000-08-01 3M Innovative Properties Company Optical polarizer
US5882774A (en) * 1993-12-21 1999-03-16 Minnesota Mining And Manufacturing Company Optical film
CN1046664C (zh) * 1993-12-21 1999-11-24 美国3M公司 多层聚合物薄膜，其制造方法及其应用
US20070091230A1 (en) * 1993-12-21 2007-04-26 3M Innovative Properties Company Display incorporating reflective polarizer
US6025897A (en) * 1993-12-21 2000-02-15 3M Innovative Properties Co. Display with reflective polarizer and randomizing cavity
US5828488A (en) * 1993-12-21 1998-10-27 Minnesota Mining And Manufacturing Co. Reflective polarizer display
US6804058B1 (en) * 1993-12-21 2004-10-12 3M Innovative Properties Company Electroluminescent light source and display incorporating same
JP2933261B2 (ja) * 1993-12-27 1999-08-09 シャープ株式会社 液晶表示装置
US5668651A (en) * 1994-03-18 1997-09-16 Sharp Kabushiki Kaisha Polymer-wall LCD having liquid crystal molecules having a plane-symmetrical bend orientation
US5638197A (en) * 1994-04-04 1997-06-10 Rockwell International Corp. Inorganic thin film compensator for improved gray scale performance in twisted nematic liquid crystal displays and method of making
US5986734A (en) * 1994-04-04 1999-11-16 Rockwell International Corporation Organic polymer O-plate compensator for improved gray scale performance in twisted nematic liquid crystal displays
US5504603A (en) * 1994-04-04 1996-04-02 Rockwell International Corporation Optical compensator for improved gray scale performance in liquid crystal display
US5745200A (en) * 1994-04-28 1998-04-28 Casio Computer Co., Ltd. Color liquid crystal display device and liquid crystal display apparatus
JPH08194204A (ja) * 1995-01-20 1996-07-30 Hitachi Ltd 液晶表示装置
WO1996023244A1 (en) * 1995-01-23 1996-08-01 Asahi Glass Company Ltd. Color liquid crystal display apparatus
US5638200A (en) * 1995-02-03 1997-06-10 Ois Optical Imaging Systems, Inc. Liquid crystal display with tilted retardation film
JP3836140B2 (ja) * 1995-02-28 2006-10-18 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 電気光学装置
JP3075134B2 (ja) * 1995-04-04 2000-08-07 株式会社日立製作所 反射型液晶表示装置
US6707516B1 (en) 1995-05-23 2004-03-16 Colorlink, Inc. Single-panel field-sequential color display systems
US5822021A (en) * 1996-05-14 1998-10-13 Colorlink, Inc. Color shutter liquid crystal display system
US6882384B1 (en) * 1995-05-23 2005-04-19 Colorlink, Inc. Color filters and sequencers using color selective light modulators
US6252638B1 (en) * 1995-05-23 2001-06-26 Colorlink, Inc. Color controllable illumination device, indicator lights, transmissive windows and color filters employing retarder stacks
US6183091B1 (en) 1995-04-07 2001-02-06 Colorlink, Inc. Color imaging systems and methods
US5999240A (en) 1995-05-23 1999-12-07 Colorlink, Inc. Optical retarder stack pair for transforming input light into polarization states having saturated color spectra
US6049367A (en) * 1995-05-23 2000-04-11 Colorlink, Inc. Polarization manipulating device modulator with retarder stack which preconditions light for modulation and isotropic states
US5929946A (en) * 1995-05-23 1999-07-27 Colorlink, Inc. Retarder stack for preconditioning light for a modulator having modulation and isotropic states of polarization
US6417892B1 (en) 1995-05-23 2002-07-09 Colorlink, Inc. Color filters, sequencers and displays using color selective light modulators
US6273571B1 (en) 1995-05-23 2001-08-14 Colorlink, Inc. Display architectures using an electronically controlled optical retarder stack
EP0774131A1 (en) * 1995-06-07 1997-05-21 Asahi Glass Company Ltd. Reflection type color liquid crystal display apparatus
US5579139A (en) * 1995-06-07 1996-11-26 Ois Optical Imaging Systems, Inc. LCD with reduced canopy reflection having a retarder of 220-320 nm retardation outside a polarizer
US5686979A (en) * 1995-06-26 1997-11-11 Minnesota Mining And Manufacturing Company Optical panel capable of switching between reflective and transmissive states
US5701168A (en) * 1995-06-29 1997-12-23 Bell Communications Research, Inc. Inverse twisted and super-twisted nematic liquid crystal device
TW332870B (en) * 1995-08-17 1998-06-01 Toshiba Co Ltd LCD and optical anisotropy device
JP2728059B2 (ja) * 1995-10-06 1998-03-18 日本電気株式会社 反射型液晶表示装置
US5892561A (en) * 1995-10-18 1999-04-06 Fujitsu Limited LC panel with reduced defects having adhesive smoothing layer on an exterior surface of the substrate(s)
US5666177A (en) * 1996-02-26 1997-09-09 Industrial Technology Research Institute Black matrix for liquid crystal display
WO1997035225A2 (en) * 1996-03-07 1997-09-25 Asahi Glass Company Ltd. Gray scale driving method for a birefringent liquid crystal display device
WO1997043685A1 (fr) * 1996-05-10 1997-11-20 Citizen Watch Co., Ltd. Obturateur a cristal liquide et son procede de commande
DE69733987T2 (de) * 1996-05-17 2006-06-22 Koninklijke Philips Electronics N.V. Kompensator
JPH1073823A (ja) * 1996-09-02 1998-03-17 Hitachi Ltd アクティブマトリクス型液晶表示装置
US6437844B1 (en) * 1996-09-04 2002-08-20 Matsushita Electric Industrial Co., Ltd. Liquid crystal display device and associated fabrication method
US6356322B1 (en) * 1996-09-30 2002-03-12 Fuji Photo Film Co., Ltd. Liquid crystal display system with improved contrast and less dependence on visual angle
US6028656A (en) * 1996-10-09 2000-02-22 Cambridge Research & Instrumentation Inc. Optical polarization switch and method of using same
TW515925B (en) 1996-12-25 2003-01-01 Sharp Kk Liquid crystal display device
US5808715A (en) * 1997-03-27 1998-09-15 Industrial Technology Research Institute Liquid crystal display devices having undercoat and overcoat made of TiO2 --SiO2 composite material
US6101884A (en) * 1997-04-10 2000-08-15 Mcdonnell Douglas Corporation Fastener equipped with an untethered fiber-optic strain gauge and related method of using the same
JP3833777B2 (ja) * 1997-04-25 2006-10-18 旭硝子株式会社 カラー液晶表示装置
US6980267B1 (en) * 1997-05-09 2005-12-27 Lg.Philips Lcd Co., Ltd. Reflective-type liquid crystal display device having two uniaxial compensation films of same type and method for making the same
TW476856B (en) * 1997-06-27 2002-02-21 Toshiba Corp Liquid crystal display device
EP0936490A4 (en) * 1997-07-30 1999-12-22 Citizen Watch Co Ltd LIQUID CRYSTAL DISPLAY DEVICE
EP2284602A1 (en) * 1997-08-29 2011-02-16 Sharp Kabushiki Kaisha Liduid crystal display device
US5948487A (en) * 1997-09-05 1999-09-07 3M Innovative Properties Company Anisotropic retardation layers for display devices
JP3204182B2 (ja) * 1997-10-24 2001-09-04 日本電気株式会社 横電界方式の液晶表示装置
US6808658B2 (en) * 1998-01-13 2004-10-26 3M Innovative Properties Company Method for making texture multilayer optical films
JP2000310774A (ja) * 1999-04-28 2000-11-07 Asahi Glass Co Ltd カラー液晶表示装置
JP2000330103A (ja) * 1999-05-14 2000-11-30 Koninkl Philips Electronics Nv 反射型液晶表示装置
US6574044B1 (en) * 1999-10-25 2003-06-03 3M Innovative Properties Company Polarizer constructions and display devices exhibiting unique color effects
US6538714B1 (en) 1999-10-25 2003-03-25 3M Innovative Properties Company Dual color guest-host polarizers and devices containing guest-host polarizers
JP4566385B2 (ja) * 2000-10-30 2010-10-20 日東電工株式会社 偏光板
JP4566384B2 (ja) 2000-10-30 2010-10-20 日東電工株式会社 偏光板
JP2002148434A (ja) 2000-11-08 2002-05-22 Nitto Denko Corp 偏光板
KR100851604B1 (ko) * 2000-12-18 2008-08-12 니폰 가야꾸 가부시끼가이샤 광학필름 및 이를 사용한 편광필름, 및 편광필름의 시야각개량 방법
US7038744B2 (en) * 2002-01-09 2006-05-02 Konica Corporation Polarizing plate having a stretched film on a side thereof and liquid crystal display employing the same
US7193670B2 (en) * 2002-04-17 2007-03-20 Nitto Denko Corporation Compensator for liquid crystal display with two compensation sheets
US6891589B2 (en) * 2002-12-16 2005-05-10 Nitto Denko Corporation Optical film, elliptically polarizing plate and image display
US20070035536A1 (en) * 2005-08-11 2007-02-15 Eastman Kodak Company Display calibration method for optimum angular performance
TWI406899B (zh) * 2006-09-05 2013-09-01 Tosoh Corp Optical compensation film and phase difference film
JP2008209666A (ja) * 2007-02-27 2008-09-11 Nitto Denko Corp 光学積層体の製造方法、及び画像表示装置
US7948593B2 (en) * 2007-03-23 2011-05-24 Seiko Epson Corporation Projector having an adjustment mechanism
TWI507510B (zh) * 2011-04-28 2015-11-11 Univ Feng Chia 藍相液晶組合物與形成藍相液晶的方法

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1462978A (en) * 1974-04-17 1977-01-26 Rank Organisation Ltd Optical apparatus
US4385806A (en) * 1978-06-08 1983-05-31 Fergason James L Liquid crystal display with improved angle of view and response times
JPS5995513A (ja) * 1982-11-25 1984-06-01 Toray Ind Inc 液晶表示セル
GB2153575B (en) * 1983-12-16 1988-07-27 Citizen Watch Co Ltd Liquid crystal display device
FR2595157B1 (fr) * 1986-02-28 1988-04-29 Commissariat Energie Atomique Cellule a double couche de cristal liquide, utilisant l'effet de birefringence controlee electriquement et procede de fabrication d'un milieu uniaxe d'anisotropie optique negative utilisable dans cette cellule
FR2595156B1 (fr) * 1986-02-28 1988-04-29 Commissariat Energie Atomique Cellule a cristal liquide utilisant l'effet de birefringence controlee electriquement et procedes de fabrication de la cellule et d'un milieu uniaxe d'anisotropie optique negative, utilisable dans celle-ci
JPS63120227A (ja) * 1986-11-07 1988-05-24 Matsushita Electric Ind Co Ltd 水位検知装置
JPH0717277B2 (ja) * 1987-01-26 1995-03-01 高砂工業株式会社 タイルの匣鉢詰め、匣鉢出し装置
JPS63239421A (ja) * 1987-03-27 1988-10-05 Asahi Glass Co Ltd 液晶表示装置
FR2613566B1 (fr) * 1987-04-06 1989-06-09 Commissariat Energie Atomique Ecran a matrice active pour affichage en couleur d'images de television, systeme de commande et procede de fabrication dudit ecran
JPS63271414A (ja) * 1987-04-30 1988-11-09 Mitsubishi Electric Corp 液晶表示装置
US4984873A (en) * 1987-08-31 1991-01-15 Ricoh Company, Ltd. Liquid crystal display device
WO1989003542A1 (en) * 1987-10-06 1989-04-20 Asahi Glass Company Ltd. Liquid crystal display device
EP0311339B1 (en) * 1987-10-07 1995-09-20 Matsushita Electric Industrial Co., Ltd. Liquid crystal display
JPH01120527A (ja) * 1987-11-04 1989-05-12 Sharp Corp 液晶表示装置
US5119220A (en) * 1988-01-28 1992-06-02 Sanyo Electric Co., Ltd. Liquid crystal display device with a phase plate for shadow compensation
JPH0215238A (ja) * 1988-07-04 1990-01-18 Stanley Electric Co Ltd 異方性補償ホメオトロピック液晶表示装置
US5056896A (en) * 1988-08-29 1991-10-15 Ricoh Company, Ltd. Liquid crystal display device with dielectric anisotropy
JPH02111918A (ja) * 1988-10-21 1990-04-24 Seiko Epson Corp 液晶電気光学素子
US5189538A (en) * 1988-11-04 1993-02-23 Fuji Photo Film Co., Ltd. Liquid crystal display having positive and negative birefringent compensator films
JP2675158B2 (ja) * 1988-12-07 1997-11-12 シャープ株式会社 液晶表示装置
EP0379315B1 (en) * 1989-01-19 1994-05-18 Seiko Epson Corporation Electro-optical liquid crystal device
JP3071204B2 (ja) * 1989-02-10 2000-07-31 株式会社リコー 液晶表示素子
US5194975A (en) * 1989-03-28 1993-03-16 Asahi Glass Company Ltd. Liquid crystal display device having biaxial birefringent plates at each side of the liquid crystal layer
US5150237A (en) * 1989-05-15 1992-09-22 Ricoh Company, Ltd. Liquid crystal display element
US5126866A (en) * 1989-08-11 1992-06-30 Sharp Kabushiki Kaisha Liquid crystal display with a plurality of phase difference plates the slow axes of which form an angle of 20 to 40 degrees
US5175638A (en) * 1989-09-12 1992-12-29 Ricoh Company, Ltd. ECB type liquid crystal display device having birefringent layer with equal refractive indexes in the thickness and plane directions
US5138474A (en) * 1989-10-27 1992-08-11 Fuji Photo Film Co., Ltd. Liquid crystal display with compensator having two films with positive and negative intrinsic birefringence, respectively

Also Published As

Publication number Publication date
EP0425685A1 (en) 1991-05-08
US5923392A (en) 1999-07-13
DE69020855D1 (de) 1995-08-17
US5194975A (en) 1993-03-16
DE69020855T2 (de) 1996-03-28
US5406396A (en) 1995-04-11
WO1990011546A1 (en) 1990-10-04
KR970009490B1 (ko) 1997-06-13
US5523867A (en) 1996-06-04
US5369513A (en) 1994-11-29
US5650833A (en) 1997-07-22
EP0425685B1 (en) 1995-07-12

Similar Documents

Publication Publication Date Title
KR920700412A (ko) 액정 디스플레이 장치
KR940002194B1 (ko) 액정표시소자
US5016988A (en) Liquid crystal display device with a birefringent compensator
KR0142066B1 (ko) 위상차판 및 액정 표시 장치
KR910006760A (ko) 막과 광복굴절장치 그리고 이를 이용한 액정표시장치
KR930002916B1 (ko) 액정 표시소자
KR910012768A (ko) 시각특성을 개선한 액정 표시 장치
KR950029815A (ko) 컬러액정표시장치
KR900002107A (ko) 전기광학소자
KR950006510A (ko) 액정표시소자
KR920001231A (ko) 회전 대칭인 등-대비 곡선을 지닌 액정 디스플레이 장치
JP2856401B2 (ja) 液晶表示素子
KR890702069A (ko) 액정표시소자
KR890007109A (ko) 액정표시소자
KR970701870A (ko) 칼라 액정 디스플레이 장치(color liquid crystal display apparatus)
JPH10239683A (ja) 反射型液晶表示装置
JPH03103823A (ja) 液晶表示装置
JPH02111918A (ja) 液晶電気光学素子
JP3103479B2 (ja) 液晶表示装置
JPS63279229A (ja) 液晶表示装置
JP2815870B2 (ja) 液晶表示素子
KR910015874A (ko) 액정표시장치
JP3256531B2 (ja) 液晶表示装置
JP2567129B2 (ja) 液晶表示装置
JP3222878B2 (ja) 液晶表示装置

Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19901128

PG1501 Laying open of application
A201 Request for examination
PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 19921017

Comment text: Request for Examination of Application

Patent event code: PA02011R01I

Patent event date: 19901128

Comment text: Patent Application

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 19960824

Patent event code: PE09021S01D

G160 Decision to publish patent application
PG1605 Publication of application before grant of patent

Comment text: Decision on Publication of Application

Patent event code: PG16051S01I

Patent event date: 19970516

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 19970909

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 19971203

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 19971203

End annual number: 3

Start annual number: 1

PR1001 Payment of annual fee

Payment date: 20000607

Start annual number: 4

End annual number: 4

PR1001 Payment of annual fee

Payment date: 20010605

Start annual number: 5

End annual number: 5

PR1001 Payment of annual fee

Payment date: 20021121

Start annual number: 6

End annual number: 6

PR1001 Payment of annual fee

Payment date: 20031119

Start annual number: 7

End annual number: 7

PR1001 Payment of annual fee

Payment date: 20041123

Start annual number: 8

End annual number: 8

PR1001 Payment of annual fee

Payment date: 20051123

Start annual number: 9

End annual number: 9

PR1001 Payment of annual fee

Payment date: 20061124

Start annual number: 10

End annual number: 10

PR1001 Payment of annual fee

Payment date: 20071123

Start annual number: 11

End annual number: 11

PR1001 Payment of annual fee

Payment date: 20081126

Start annual number: 12

End annual number: 12

PR1001 Payment of annual fee

Payment date: 20091123

Start annual number: 13

End annual number: 13

PR1001 Payment of annual fee

Payment date: 20101124

Start annual number: 14

End annual number: 14

FPAY Annual fee payment

Payment date: 20111122

Year of fee payment: 15

PR1001 Payment of annual fee

Payment date: 20111122

Start annual number: 15

End annual number: 15

EXPY Expiration of term
PC1801 Expiration of term