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AU2001270784A1 - Bistable liquid crystal devices - Google Patents

Bistable liquid crystal devices

Info

Publication number
AU2001270784A1
AU2001270784A1 AU2001270784A AU7078401A AU2001270784A1 AU 2001270784 A1 AU2001270784 A1 AU 2001270784A1 AU 2001270784 A AU2001270784 A AU 2001270784A AU 7078401 A AU7078401 A AU 7078401A AU 2001270784 A1 AU2001270784 A1 AU 2001270784A1
Authority
AU
Australia
Prior art keywords
liquid crystal
switching
alignment
substrate
energy
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.)
Abandoned
Application number
AU2001270784A
Inventor
John Clifford Jones
Richard Jonathan Miller
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.)
Holographic Imaging LLC
Original Assignee
Holographic Imaging LLC
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 Holographic Imaging LLC filed Critical Holographic Imaging LLC
Publication of AU2001270784A1 publication Critical patent/AU2001270784A1/en
Abandoned 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
    • G02F1/137—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
    • 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
    • G02F1/133362—Optically addressed 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
    • G02F1/137—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

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)
  • Liquid Crystal (AREA)
  • Liquid Crystal Substances (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

In a liquid crystal device a substrate (1) favors at least two stable or metastable differently directed liquid crystal alignments, and switching means for causing the liquid crystal material to switch between the alignments includes means arranged for optically irradiating said device. The latter may provide linearly polarized light (3) for inducing a torque on the liquid crystal to determine the alignment direction, and may optionally cooperate with a second energy supplying means such as an electric field (V) for assisting and switching. Alternatively, the alignment of the liquid crystal may be switched by a second energy supplying means such as an electric field, the light serving to produce heat to aid the switching. Either or both energy sources may be applied locally for switching of selected areas or pixels. Energy levels at the bistable substrate may be adjusted by the use of an oligomeric additive (slippery surface). As shown, the alignment at the surface of an opposed substrate (2) optionally follows the alignment at substrate (1).
AU2001270784A 2000-07-15 2001-07-11 Bistable liquid crystal devices Abandoned AU2001270784A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0017312 2000-07-15
GBGB0017312.0A GB0017312D0 (en) 2000-07-15 2000-07-15 Bistable liquid crystal devices
PCT/GB2001/003112 WO2002006888A1 (en) 2000-07-15 2001-07-11 Bistable liquid crystal devices

Publications (1)

Publication Number Publication Date
AU2001270784A1 true AU2001270784A1 (en) 2002-01-30

Family

ID=9895666

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001270784A Abandoned AU2001270784A1 (en) 2000-07-15 2001-07-11 Bistable liquid crystal devices

Country Status (12)

Country Link
US (2) US7006165B1 (en)
EP (1) EP1303787B1 (en)
JP (1) JP2004504629A (en)
KR (1) KR20030016408A (en)
CN (1) CN1459045A (en)
AT (1) ATE337571T1 (en)
AU (1) AU2001270784A1 (en)
CA (1) CA2415419A1 (en)
DE (1) DE60122531T2 (en)
GB (1) GB0017312D0 (en)
RU (1) RU2253888C2 (en)
WO (1) WO2002006888A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0017312D0 (en) 2000-07-15 2000-08-30 Secr Defence Bistable liquid crystal devices
WO2003069396A2 (en) 2002-02-15 2003-08-21 Elop Electro-Optics Industries Ltd. Device and method for varying the reflectance or transmittance of light
JP4363029B2 (en) * 2002-11-06 2009-11-11 ソニー株式会社 Manufacturing method of split wave plate filter
US7397935B2 (en) 2004-05-10 2008-07-08 Mediguide Ltd. Method for segmentation of IVUS image sequences
JP2008014982A (en) * 2006-07-03 2008-01-24 Nec Lcd Technologies Ltd Method and apparatus for manufacturing liquid crystal display device
JP2015512766A (en) 2012-01-31 2015-04-30 ザ・ペン・ステート・リサーチ・ファンデーション Microfluidic manipulation and particle classification using variable stationary surface acoustic waves
RU2497167C1 (en) * 2012-05-03 2013-10-27 Государственное образовательное учреждение высшего профессионального образования Московский государственный областной университет Method of producing oriented liquid crystal layer
CN104968417B (en) * 2012-08-01 2017-08-18 宾夕法尼亚州立大学研究基金会 The high efficiency separation and operation of particle and cell
WO2014085627A1 (en) 2012-11-27 2014-06-05 The Penn State Research Foundation Spatiotemporal control of chemical microenvironment using oscillating microstructures
JP7152707B2 (en) * 2017-09-04 2022-10-13 国立大学法人東京工業大学 Optical element, method for manufacturing same, and method for driving optical element
WO2022035652A1 (en) * 2020-08-11 2022-02-17 Chongchang Mao Polarization insensitive liquid crystal on silicon

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4813767A (en) * 1980-01-08 1989-03-21 Clark Noel A Surface stabilized ferroelectric liquid crystal devices
WO1988006175A1 (en) * 1987-02-13 1988-08-25 The Secretary Of State For Defence In Her Britanni Substituted phthalocyanines
US4974941A (en) 1989-03-08 1990-12-04 Hercules Incorporated Process of aligning and realigning liquid crystal media
GB2286058A (en) * 1994-01-21 1995-08-02 Sharp Kk Switchable holographic apparatus
GB9402513D0 (en) 1994-02-09 1994-03-30 Secr Defence Bistable nematic liquid crystal device
US5846452A (en) 1995-04-06 1998-12-08 Alliant Techsystems Inc. Liquid crystal optical storage medium with gray scale
GB9521106D0 (en) 1995-10-16 1995-12-20 Secr Defence Bistable nematic liquid crystal device
GB9713658D0 (en) 1997-06-28 1997-09-03 Travis Adrian R L View-sequential holographic display
WO1999018474A1 (en) 1997-10-08 1999-04-15 Hewlett-Packard Company Liquid crystal device alignment
GB2330471A (en) 1997-10-15 1999-04-21 Secr Defence Production of moving images for holography
GB9727142D0 (en) 1997-12-24 1998-02-25 Secr Defence Bistable nematic liquid crystal device
GB2345978A (en) * 1999-01-23 2000-07-26 Sharp Kk Diffractive spatial light modulator
JP3879805B2 (en) * 1999-07-02 2007-02-14 富士ゼロックス株式会社 Optical filtering apparatus and method
GB0017312D0 (en) 2000-07-15 2000-08-30 Secr Defence Bistable liquid crystal devices

Also Published As

Publication number Publication date
DE60122531T2 (en) 2007-05-16
USRE44889E1 (en) 2014-05-13
DE60122531D1 (en) 2006-10-05
WO2002006888A1 (en) 2002-01-24
CN1459045A (en) 2003-11-26
CA2415419A1 (en) 2002-01-24
GB0017312D0 (en) 2000-08-30
EP1303787A1 (en) 2003-04-23
EP1303787B1 (en) 2006-08-23
RU2253888C2 (en) 2005-06-10
KR20030016408A (en) 2003-02-26
US7006165B1 (en) 2006-02-28
JP2004504629A (en) 2004-02-12
ATE337571T1 (en) 2006-09-15

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