HK1019487A1 - Liquid crystal device - Google Patents

Liquid crystal device

Info

Publication number
HK1019487A1
HK1019487A1 HK99104585A HK99104585A HK1019487A1 HK 1019487 A1 HK1019487 A1 HK 1019487A1 HK 99104585 A HK99104585 A HK 99104585A HK 99104585 A HK99104585 A HK 99104585A HK 1019487 A1 HK1019487 A1 HK 1019487A1
Authority
HK
Hong Kong
Prior art keywords
liquid crystal
crystal device
liquid
crystal
Prior art date
Application number
HK99104585A
Other languages
English (en)
Inventor
Guy Peter Bryan-Brown
Carl Vernon Brown
Ian Charles Sage
Original Assignee
Qinetiq Ltd
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 Qinetiq Ltd filed Critical Qinetiq Ltd
Publication of HK1019487A1 publication Critical patent/HK1019487A1/xx

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
    • G02F1/137—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
    • G02F1/137—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
    • 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
    • G02F1/133—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
    • G02F1/133742—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers for homeotropic alignment
    • 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
    • G02F1/13725—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 guest-host interaction

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)
HK99104585A 1996-04-16 1999-10-15 Liquid crystal device HK1019487A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9607854.8A GB9607854D0 (en) 1996-04-16 1996-04-16 Liquid crystal device
PCT/GB1997/001019 WO1997039382A1 (en) 1996-04-16 1997-04-14 Liquid crystal device

Publications (1)

Publication Number Publication Date
HK1019487A1 true HK1019487A1 (en) 2000-02-11

Family

ID=10792140

Family Applications (1)

Application Number Title Priority Date Filing Date
HK99104585A HK1019487A1 (en) 1996-04-16 1999-10-15 Liquid crystal device

Country Status (9)

Country Link
US (1) US6549256B1 (ja)
EP (1) EP0894285B1 (ja)
JP (1) JP4384262B2 (ja)
KR (1) KR100443441B1 (ja)
CN (1) CN1096622C (ja)
DE (1) DE69705216T2 (ja)
GB (2) GB9607854D0 (ja)
HK (1) HK1019487A1 (ja)
WO (1) WO1997039382A1 (ja)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9713164D0 (en) * 1997-06-23 1997-08-27 Secr Defence Liquid crystal device
GB9727142D0 (en) * 1997-12-24 1998-02-25 Secr Defence Bistable nematic liquid crystal device
EP1028346A3 (en) 1999-02-12 2002-05-02 Matsushita Electric Industrial Co., Ltd. Liquid crystal element and manufacturing method thereof
DE60034869T2 (de) * 2000-03-27 2008-02-14 Hewlett-Packard Co. (N.D.Ges.D.Staates Delaware), Palo Alto Bistabile nematische Flüssigkristallvorrichtung
EP1139152A1 (en) * 2000-03-27 2001-10-04 Hewlett-Packard Company, A Delaware Corporation Liquid crystal alignment structure
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
KR100344185B1 (ko) * 2000-06-13 2002-07-20 주식회사 네오텍리서치 액정표시장치
JP2002082358A (ja) * 2000-09-06 2002-03-22 Sony Corp 調光装置及び撮像装置
JP3683172B2 (ja) * 2000-11-09 2005-08-17 シャープ株式会社 液晶表示素子
DE10111452B4 (de) * 2001-03-09 2006-07-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Bistabile elektrooptische Flüssigkristallanzeigen und Verfahren zu ihrer Herstellung
JP3804502B2 (ja) 2001-09-27 2006-08-02 カシオ計算機株式会社 液晶表示装置の駆動方法
KR100431052B1 (ko) * 2001-10-08 2004-05-12 주식회사 네오텍리서치 표면 굴곡에 의하여 형성된 다중 영역 효과를 가지는 액정표시 장치
US20060035086A1 (en) 2002-10-17 2006-02-16 Qinetiq Limited Liquid crystal alignment layer
GB2394781B (en) 2002-10-31 2005-11-09 Hewlett Packard Co Bistable nematic liquid crystal display device
US20040165128A1 (en) * 2003-02-26 2004-08-26 Three-Five Systems, Inc. Vertically aligned nematic mode liquid crystal display having large tilt angles and high contrast
US6950173B1 (en) 2003-04-08 2005-09-27 Science Applications International Corporation Optimizing performance parameters for switchable polymer dispersed liquid crystal optical elements
US7728801B2 (en) * 2004-06-24 2010-06-01 Au Optronics Corp. Adjustable-viewing-angle liquid crystal display
TWI277790B (en) * 2004-07-28 2007-04-01 Au Optronics Corp Liquid crystal display and method of fabricating the lower substrate thereof
GB2424716B (en) 2005-03-29 2010-03-24 Hewlett Packard Development Co Bistable liquid crystal display device
CN103105690A (zh) * 2013-01-30 2013-05-15 江苏亿成光电科技有限公司 一种高对比低功耗液晶显示器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50150242A (ja) * 1974-05-24 1975-12-02
DE3313405A1 (de) * 1982-04-13 1983-10-20 Canon K.K., Tokyo Elektrooptische vorrichtung
US4796979A (en) * 1986-04-07 1989-01-10 Canon Kabushiki Kaisha Ferroelectric liquid crystal device having dual laminated alignment films
JPS62266522A (ja) * 1986-05-14 1987-11-19 Seiko Epson Corp 液晶表示装置
JP2530432B2 (ja) * 1986-07-22 1996-09-04 キヤノン株式会社 液晶素子
US4878742A (en) * 1986-08-04 1989-11-07 Canon Kabushiki Kaisha Liquid crystal optical modulator
JPH0812360B2 (ja) * 1989-12-21 1996-02-07 スタンレー電気株式会社 液晶表示装置およびその駆動方法
US5477358A (en) * 1993-06-21 1995-12-19 Case Western Reserve University Chiral nematic liquid crystal display with homeotropic alignment and negative dielectric anisotropy
GB9402517D0 (en) * 1994-02-09 1994-03-30 Secr Defence Ferroelectric liquid crystal alignment
GB9402513D0 (en) * 1994-02-09 1994-03-30 Secr Defence Bistable nematic liquid crystal device
US5638201A (en) * 1995-05-19 1997-06-10 Bos; Philip J. Optically active diffractive device
US5701168A (en) * 1995-06-29 1997-12-23 Bell Communications Research, Inc. Inverse twisted and super-twisted nematic liquid crystal device
JPH1073317A (ja) * 1996-08-28 1998-03-17 Toshiba Home Technol Corp 温風暖房機

Also Published As

Publication number Publication date
JP4384262B2 (ja) 2009-12-16
GB9607854D0 (en) 1996-06-19
GB9816827D0 (en) 1998-09-30
KR20000005473A (ko) 2000-01-25
CN1216122A (zh) 1999-05-05
CN1096622C (zh) 2002-12-18
GB2324620B (en) 2000-08-30
JP2000508784A (ja) 2000-07-11
DE69705216T2 (de) 2001-10-25
EP0894285A1 (en) 1999-02-03
US6549256B1 (en) 2003-04-15
EP0894285B1 (en) 2001-06-13
DE69705216D1 (de) 2001-07-19
WO1997039382A1 (en) 1997-10-23
KR100443441B1 (ko) 2004-11-03
GB2324620A (en) 1998-10-28

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20140414