IT8026333A0 - Dispositivo a cristalli liquidi. - Google Patents

Dispositivo a cristalli liquidi.

Info

Publication number
IT8026333A0
IT8026333A0 IT8026333A IT2633380A IT8026333A0 IT 8026333 A0 IT8026333 A0 IT 8026333A0 IT 8026333 A IT8026333 A IT 8026333A IT 2633380 A IT2633380 A IT 2633380A IT 8026333 A0 IT8026333 A0 IT 8026333A0
Authority
IT
Italy
Prior art keywords
liquid crystal
crystal device
liquid
crystal
Prior art date
Application number
IT8026333A
Other languages
English (en)
Other versions
IT1134524B (it
Inventor
Gary Delane Boyd
Julian Cheng
Peter Dinh Tuan Ngo
Original Assignee
Western Electric Co
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
Application filed by Western Electric Co filed Critical Western Electric Co
Publication of IT8026333A0 publication Critical patent/IT8026333A0/it
Application granted granted Critical
Publication of IT1134524B publication Critical patent/IT1134524B/it

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
    • 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
    • G02F1/1391—Bistable or multi-stable liquid crystal 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers

Landscapes

  • 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)
  • Secondary Cells (AREA)
IT26333/80A 1979-11-30 1980-11-28 Dispositivo a cristalli liquidi IT1134524B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/098,976 US4333708A (en) 1979-11-30 1979-11-30 Mechanically multistable liquid crystal cell

Publications (2)

Publication Number Publication Date
IT8026333A0 true IT8026333A0 (it) 1980-11-28
IT1134524B IT1134524B (it) 1986-08-13

Family

ID=22271806

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26333/80A IT1134524B (it) 1979-11-30 1980-11-28 Dispositivo a cristalli liquidi

Country Status (15)

Country Link
US (1) US4333708A (it)
JP (1) JPS56501421A (it)
KR (1) KR830002412B1 (it)
BE (1) BE886402A (it)
CA (1) CA1147043A (it)
CH (1) CH656235A5 (it)
DE (1) DE3050086A1 (it)
ES (1) ES497271A0 (it)
FR (1) FR2470978B1 (it)
GB (1) GB2065907B (it)
HK (1) HK6486A (it)
IT (1) IT1134524B (it)
NL (1) NL8020477A (it)
SE (1) SE451283B (it)
WO (1) WO1981001618A1 (it)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505548A (en) * 1980-10-20 1985-03-19 At&T Bell Laboratories Bistable liquid crystal twist cell
US4400060A (en) * 1981-04-08 1983-08-23 Bell Telephone Laboratories, Incorporated Cell isolation in bistable nematic liquid crystal cells
US4529271A (en) * 1982-03-12 1985-07-16 At&T Bell Laboratories Matrix addressed bistable liquid crystal display
US4472026A (en) * 1982-05-06 1984-09-18 At&T Bell Laboratories Electrothermal matrix addressable liquid crystal display
FR2532453A1 (fr) * 1982-08-25 1984-03-02 Western Electric Co Dispositif d'affichage a cristaux liquides bistable utilisant des tensions de preparation
US4717243A (en) * 1982-08-25 1988-01-05 American Telephone And Telegraph Company, At&T Bell Laboratories Bistable liquid crystal display utilizing priming voltages
US4601543A (en) * 1982-10-15 1986-07-22 At&T Bell Laboratories Nematic liquid crystal storage display device
US4601542A (en) * 1982-10-15 1986-07-22 At&T Bell Laboratories Nematic liquid crystal storage display device
US4601544A (en) * 1982-10-15 1986-07-22 At&T Bell Laboratories Nematic liquid crystal storage display device
CA1210481A (en) * 1982-10-15 1986-08-26 Robert B. Meyer Liquid crystal display cells and methods of switching same
US4582396A (en) * 1983-05-09 1986-04-15 Tektronix, Inc. Field sequential color display system using optical retardation
US4566758A (en) * 1983-05-09 1986-01-28 Tektronix, Inc. Rapid starting, high-speed liquid crystal variable optical retarder
DE3444525A1 (de) * 1984-12-06 1986-06-19 Vdo Adolf Schindling Ag, 6000 Frankfurt Fluessigkristallzelle
US4917476A (en) * 1985-06-21 1990-04-17 British Aerospace Public Limited Company Thermal imagers using liquid crystal sensing elements
DE3674757D1 (de) * 1985-12-12 1990-11-08 Hitachi Ltd Optischer schalter.
US4840461A (en) * 1986-10-07 1989-06-20 British Telecommunications Public Limited Company Optical switching devices having liquid crystal with splayed molecular orientation
US4726663A (en) * 1986-11-14 1988-02-23 Tektronix, Inc. Switchable color filter with enhanced transmissivity
US4917475A (en) * 1987-03-06 1990-04-17 At&T Bell Laboratories Flexoelectric liquid crystal device
US4900132A (en) * 1987-04-13 1990-02-13 Tektronix, Inc. Chiral liquid crystal cell
US5122888A (en) * 1987-07-10 1992-06-16 Canon Kabushiki Kaisha Focusing plate having phase grating formed by using liquid crystal
US5136409A (en) * 1987-09-29 1992-08-04 Canon Kabushiki Kaisha Liquid crystal device having at least two zones having different diffusion characteristics
US5504604A (en) * 1992-01-22 1996-04-02 Nec Corporation Liquid crystal display elements with opposite twist domains aligned in the same direction on one substrate
JP3753440B2 (ja) * 1992-05-07 2006-03-08 セイコーエプソン株式会社 液晶表示装置及び液晶表示装置の駆動方法
JP3634390B2 (ja) * 1992-07-16 2005-03-30 セイコーエプソン株式会社 液晶電気光学素子
KR100367869B1 (ko) * 1993-09-20 2003-06-09 가부시끼가이샤 히다치 세이사꾸쇼 액정표시장치
GB9402513D0 (en) * 1994-02-09 1994-03-30 Secr Defence Bistable nematic liquid crystal device
US5625477A (en) * 1994-04-11 1997-04-29 Advanced Display Systems, Inc. Zero field multistable cholesteric liquid crystal displays
US5889566A (en) * 1994-04-11 1999-03-30 Advanced Display Systems, Inc. Multistable cholesteric liquid crystal devices driven by width-dependent voltage pulse
KR100254647B1 (ko) 1995-05-17 2000-05-01 야스카와 히데아키 액정 표시 장치와 그 구동 방법 및 이에 이용되는 구동 회로 및 전원 회로 장치
JPH0961825A (ja) * 1995-08-28 1997-03-07 Sharp Corp 液晶表示装置
GB9521106D0 (en) 1995-10-16 1995-12-20 Secr Defence Bistable nematic liquid crystal device
FR2741165B1 (fr) * 1995-11-10 1998-01-30 Ist Naz Fisica Della Materia Dispositif d'affichage bistable a base de cristaux liquides nematiques autorisant des teintes de gris
JPH09297310A (ja) * 1996-05-01 1997-11-18 Stanley Electric Co Ltd 液晶表示素子とその製造方法
TWI269250B (en) * 1997-06-12 2006-12-21 Sharp Kk Liquid crystal display device
KR100313949B1 (ko) * 1998-11-11 2002-09-17 엘지.필립스 엘시디 주식회사 멀티도메인액정표시소자
EP1139152A1 (en) * 2000-03-27 2001-10-04 Hewlett-Packard Company, A Delaware Corporation Liquid crystal alignment structure
DE60034869T2 (de) * 2000-03-27 2008-02-14 Hewlett-Packard Co. (N.D.Ges.D.Staates Delaware), Palo Alto Bistabile nematische Flüssigkristallvorrichtung
US7460200B2 (en) * 2000-03-27 2008-12-02 Helwett-Packard Development Company, L.P. Liquid crystal alignment
EP1139150A1 (en) * 2000-03-27 2001-10-04 Hewlett-Packard Company, A Delaware Corporation Liquid crystal alignment structure
KR100670058B1 (ko) * 2000-03-30 2007-01-16 삼성전자주식회사 액정 표시 장치
FR2808890B1 (fr) * 2000-05-12 2002-08-09 Nemoptic Dispositif bistable d'affichage en reflexion avec contraste inverse
FR2808891B1 (fr) * 2000-05-12 2003-07-25 Nemoptic Dispositif bistable d'affichage en reflexion
KR100818193B1 (ko) * 2000-07-05 2008-04-01 롤리크 아게 네마틱 액정 전기광학 소자 및 장치
GB0017953D0 (en) * 2000-07-21 2000-09-13 Secr Defence Liquid crystal device
US6674932B1 (en) * 2000-12-14 2004-01-06 Hewlett-Packard Development Company, L.P. Bistable molecular mechanical devices with a middle rotating segment activated by an electric field for electronic switching, gating, and memory applications
EP1271225A1 (en) * 2001-06-22 2003-01-02 Hewlett-Packard Company, A Delaware Corporation Bistable nematic liquid crystal device
JP3852342B2 (ja) * 2002-01-28 2006-11-29 セイコーエプソン株式会社 反射板、反射板の製造方法、液晶装置、電子機器
GB0209917D0 (en) * 2002-04-30 2002-06-05 Hewlett Packard Co Bistable nematic liquid crystal device
JP4170121B2 (ja) * 2003-03-20 2008-10-22 株式会社 日立ディスプレイズ 液晶表示装置
KR100698047B1 (ko) * 2003-04-19 2007-03-23 엘지.필립스 엘시디 주식회사 횡전계형 액정 표시 장치 및 그 제조 방법
US7487209B2 (en) * 2004-07-13 2009-02-03 International Business Machines Corporation Delivering dynamic media content for collaborators to purposeful devices
GB0426582D0 (en) * 2004-12-03 2005-01-05 Univ Strathclyde Bistable liquid crystal device
GB0611141D0 (en) * 2006-06-07 2006-07-19 Univ Strathclyde Multistable reflective liquid crystal device
CN103383510B (zh) * 2013-07-09 2016-08-10 京东方科技集团股份有限公司 一种液晶面板和显示装置
US10670910B2 (en) 2018-09-24 2020-06-02 Sharp Kabushiki Kaisha LCD with four stable and optically distinct states
US10698284B2 (en) 2018-09-24 2020-06-30 Sharp Kabushiki Kaisha ZBD liquid crystal device and methods of operating such device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US527054A (en) * 1894-10-09 George c
US4002404A (en) * 1975-01-07 1977-01-11 Xerox Corporation Imaging system with latent alignment image
US4030997A (en) * 1975-04-21 1977-06-21 Hughes Aircraft Company Method of aligning liquid crystals
US4128313A (en) * 1977-08-18 1978-12-05 General Electric Company Liquid crystal display with dark characters on light background
US4239345A (en) * 1979-04-16 1980-12-16 Bell Telephone Laboratories, Incorporated Bistable liquid crystal twist cell

Also Published As

Publication number Publication date
DE3050086A1 (de) 1982-03-18
IT1134524B (it) 1986-08-13
FR2470978B1 (it) 1985-10-18
SE8104578L (sv) 1981-07-28
ES8106625A1 (es) 1981-08-16
GB2065907A (en) 1981-07-01
KR830004609A (ko) 1983-07-16
JPS56501421A (it) 1981-10-01
CA1147043A (en) 1983-05-24
ES497271A0 (es) 1981-08-16
CH656235A5 (de) 1986-06-13
BE886402A (fr) 1981-03-16
GB2065907B (en) 1984-05-23
KR830002412B1 (ko) 1983-10-26
SE451283B (sv) 1987-09-21
NL8020477A (it) 1981-10-01
US4333708A (en) 1982-06-08
WO1981001618A1 (en) 1981-06-11
FR2470978A1 (it) 1981-06-12
HK6486A (en) 1986-02-07

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