DE60219243T2 - Bistabile nematische Flüssigkristallvorrichtung - Google Patents

Bistabile nematische Flüssigkristallvorrichtung Download PDF

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Publication number
DE60219243T2
DE60219243T2 DE60219243T DE60219243T DE60219243T2 DE 60219243 T2 DE60219243 T2 DE 60219243T2 DE 60219243 T DE60219243 T DE 60219243T DE 60219243 T DE60219243 T DE 60219243T DE 60219243 T2 DE60219243 T2 DE 60219243T2
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DE
Germany
Prior art keywords
holes
liquid crystal
cell wall
orientation
alignment
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE60219243T
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German (de)
English (en)
Other versions
DE60219243D1 (de
Inventor
Stephen Christopher Alveston KITSON
Adrian Derek Portishead Geisow
John Christopher Rudin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hewlett Packard Development Co LP
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Hewlett Packard Development Co LP
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Filing date
Publication date
Application filed by Hewlett Packard Development Co LP filed Critical Hewlett Packard Development Co LP
Publication of DE60219243D1 publication Critical patent/DE60219243D1/de
Application granted granted Critical
Publication of DE60219243T2 publication Critical patent/DE60219243T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G02F1/137—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
    • 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
    • G02F1/133—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
    • G02F1/133761—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 pretilt angles
    • 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
    • G02F1/133776—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers having structures locally influencing the alignment, e.g. unevenness
    • 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
    • G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
DE60219243T 2001-06-22 2002-05-16 Bistabile nematische Flüssigkristallvorrichtung Expired - Lifetime DE60219243T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP01305418 2001-06-22
EP01305418A EP1271225A1 (en) 2001-06-22 2001-06-22 Bistable nematic liquid crystal device

Publications (2)

Publication Number Publication Date
DE60219243D1 DE60219243D1 (de) 2007-05-16
DE60219243T2 true DE60219243T2 (de) 2008-04-10

Family

ID=8182046

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60219243T Expired - Lifetime DE60219243T2 (de) 2001-06-22 2002-05-16 Bistabile nematische Flüssigkristallvorrichtung

Country Status (4)

Country Link
US (1) US6992741B2 (enExample)
EP (1) EP1271225A1 (enExample)
JP (1) JP4484422B2 (enExample)
DE (1) DE60219243T2 (enExample)

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US7253438B2 (en) * 2003-03-20 2007-08-07 Sharp Kabushiki Kaisha Liquid crystal display apparatus and manufacturing method therefor
GB2405217A (en) * 2003-08-22 2005-02-23 Qinetiq Ltd Phoretic display
GB0426582D0 (en) * 2004-12-03 2005-01-05 Univ Strathclyde Bistable liquid crystal device
US20060215095A1 (en) * 2005-03-26 2006-09-28 Qin Liu Laser-writing alignment marks on alignment layer to align liquid crystals
GB2424716B (en) * 2005-03-29 2010-03-24 Hewlett Packard Development Co Bistable liquid crystal display device
US7826019B2 (en) * 2005-08-31 2010-11-02 Japan Science And Technology Agency Liquid crystal display device using nematic liquid crystal and alignment layer favorable for low power consumption
GB0611141D0 (en) 2006-06-07 2006-07-19 Univ Strathclyde Multistable reflective liquid crystal device
US10708575B2 (en) 2012-06-25 2020-07-07 Sharp Kabushiki Kaisha Display system with diffuse and specular reflective modes
US9679506B2 (en) 2012-06-25 2017-06-13 Sharp Kabushiki Kaisha Multiple function display system
US10699612B2 (en) 2014-10-27 2020-06-30 Sharp Kabushiki Kaisha Display system with specular reflective mode

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US4358589A (en) * 1979-02-02 1982-11-09 Veb Werk Fur Fernsehelektronik Im Veb Kombinat Mikroelektronik Nematic liquid crystal compounds
US4333708A (en) 1979-11-30 1982-06-08 Bell Telephone Laboratories, Incorporated Mechanically multistable liquid crystal cell
JPS56138712A (en) 1980-03-31 1981-10-29 Citizen Watch Co Ltd Color liquid crystal display device
GB8608276D0 (en) 1986-04-04 1986-05-08 British Telecomm Optical devices
JPH02211422A (ja) 1989-02-13 1990-08-22 Seiko Epson Corp 液晶シャッター
FR2666908B2 (fr) 1990-01-30 1992-12-18 Centre Nat Rech Scient Perfectionnements aux dispositifs optiques bistables a cristaux liquides et commande electrochirale.
FR2666923A2 (fr) 1990-06-22 1992-03-20 Centre Nat Rech Scient Perfectionnements aux afficheurs a cristal liquide nematique, a bistabilite de surface, commandes par effet flexoelectrique.
US5327271A (en) 1990-08-17 1994-07-05 Dainippon Ink And Chemical, Inc. Liquid crystal device employing polymer network on one substrate and alignment layer or polymer network on other substrate
JP3267989B2 (ja) 1991-08-26 2002-03-25 株式会社東芝 液晶配向膜の製造方法
JPH0588177A (ja) 1991-09-30 1993-04-09 Toshiba Corp 液晶表示素子
JPH0643463A (ja) * 1992-07-23 1994-02-18 Canon Inc 液晶素子
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GB9402513D0 (en) 1994-02-09 1994-03-30 Secr Defence Bistable nematic liquid crystal device
TW428116B (en) 1994-05-18 2001-04-01 Matsushita Electric Industrial Co Ltd Liquid crystal display element and laminated phase difference plate used for the same
KR0148669B1 (ko) 1994-06-24 1998-11-16 가다오까 마사다까 액정소자, 그의 제조방법, 액정소자배향막의 형성방법, 액정소자배향막형성용 전사형, 그의 제조방법 및 배향막에 대한 요철모양의 전사장치
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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
EP1139150A1 (en) * 2000-03-27 2001-10-04 Hewlett-Packard Company, A Delaware Corporation Liquid crystal alignment structure

Also Published As

Publication number Publication date
JP4484422B2 (ja) 2010-06-16
EP1271225A1 (en) 2003-01-02
US20020196403A1 (en) 2002-12-26
JP2003066492A (ja) 2003-03-05
DE60219243D1 (de) 2007-05-16
US6992741B2 (en) 2006-01-31

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8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, US