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CA2261863A1 - Dispositifs de modulation de la lumiere - Google Patents

Dispositifs de modulation de la lumiere Download PDF

Info

Publication number
CA2261863A1
CA2261863A1 CA002261863A CA2261863A CA2261863A1 CA 2261863 A1 CA2261863 A1 CA 2261863A1 CA 002261863 A CA002261863 A CA 002261863A CA 2261863 A CA2261863 A CA 2261863A CA 2261863 A1 CA2261863 A1 CA 2261863A1
Authority
CA
Canada
Prior art keywords
liquid crystal
substrate
substrates
mixture
glass
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
CA002261863A
Other languages
English (en)
Inventor
Paul Arthur Holmes
Shirley Anne Sergeant
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.)
Pilkington Group Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2261863A1 publication Critical patent/CA2261863A1/fr
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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1341—Filling or closing of 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
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • 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
    • G02F1/1341—Filling or closing of cells
    • G02F1/13415—Drop filling process
    • 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
    • G02F1/13718—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 a change of the texture state of a cholesteric liquid crystal

Landscapes

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

Abstract

Cette invention se rapporte à un procédé adapté à la fabrication à grande échelle de dispositifs à cristaux liquides modulateurs de lumière, dotés d'une très fine couche, de l'ordre de 15 µm d'épaisseur, d'une matière (6) contenant des cristaux liquides et constituée de préférence d'un mélange susceptible de former un matériau à cristaux liquides stabilisé par un polymère ("PSCT"), pris en sandwich entre deux substrats (2, 4), l'un au moins de ces substrats étant constitué de verre. On applique ladite matière (6) contenant les cristaux liquides sur le premier substrat (2) avant d'amener le second substrat (4) en contact puis on comprime les deux substrats (2, 4), par exemple entre deux cylindres (18, 22), jusqu'à l'obtention de l'épaisseur requise de la matière à cristaux liquides. On maintient les deux substrats (2, 4) à une distance respective requise au moyen de séparateurs. Il est également nécessaire de polymériser ladite matière (6) contenant les cristaux liquides et susceptible de former le matériau PSCT en exposant la structure en sandwich comprimée à un rayonnement ultraviolet.
CA002261863A 1996-08-07 1997-08-07 Dispositifs de modulation de la lumiere Abandoned CA2261863A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2412496P 1996-08-07 1996-08-07
US60/024,124 1996-08-07

Publications (1)

Publication Number Publication Date
CA2261863A1 true CA2261863A1 (fr) 1998-02-12

Family

ID=21818993

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002261863A Abandoned CA2261863A1 (fr) 1996-08-07 1997-08-07 Dispositifs de modulation de la lumiere

Country Status (5)

Country Link
EP (1) EP0917665A1 (fr)
JP (1) JP2000515648A (fr)
AU (1) AU719372B2 (fr)
CA (1) CA2261863A1 (fr)
WO (1) WO1998005998A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2779839B1 (fr) * 1998-06-10 2003-06-06 Saint Gobain Vitrage Systeme electrocommandable a proprietes optiques variables
WO2000060407A1 (fr) * 1999-04-06 2000-10-12 Reveo, Inc. Structures de vitrage electro-optique presentant des modes de fonctionnement par diffusion et par transparence
US6275277B1 (en) 1999-05-17 2001-08-14 Colorado Microdisplay, Inc. Micro liquid crystal displays having a circular cover glass and a viewing area free of spacers
EP1676171A1 (fr) * 2003-10-02 2006-07-05 Reveo, Inc. Systeme d'assemblage de cellules a cristaux liquides
JP2006234885A (ja) * 2005-02-22 2006-09-07 Nippon Hoso Kyokai <Nhk> 液晶光変調器の製造方法、液晶光変調器および液晶表示装置
FR2964473B1 (fr) * 2010-09-03 2012-08-17 Saint Gobain Vitrage multiple a diffusion variable par cristaux liquides, son procede de fabrication
FR2965641B1 (fr) 2010-10-04 2013-10-11 Saint Gobain Vitrage multiple a diffusion variable par cristaux liquides, son procede de fabrication
FR2985328B1 (fr) * 2011-12-29 2013-12-20 Saint Gobain Vitrage multiple a diffusion variable par cristaux liquides
FR2985327B1 (fr) 2011-12-29 2013-12-20 Saint Gobain Vitrage multiple a diffusion variable par cristaux liquides, son procede de fabrication
KR101684012B1 (ko) * 2014-12-03 2016-12-07 현대자동차주식회사 글래스비드와 액정을 이용한 스마트 윈도우 및 이의 제조방법
GB201614208D0 (en) 2016-08-19 2016-10-05 Pilkington Group Ltd Switchable glazing unit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691995A (en) * 1985-07-15 1987-09-08 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal filling device
JPS62267721A (ja) * 1986-05-15 1987-11-20 Nec Corp 液晶素子の製造方法
US5474629A (en) * 1990-12-15 1995-12-12 Semiconductor Energy Laboratory Co., Ltd. Method for manufacturing a liquid crystal device
EP0582656B1 (fr) * 1991-05-02 1999-04-07 Kent State University Dispositif et materiau modulateurs de lumiere a cristaux liquides
EP0703485B1 (fr) * 1994-09-26 2002-06-05 Matsushita Electric Industrial Co., Ltd. Panneau d'affichage à cristal liquide, procédé et dispositif pour la fabrication d'un tel panneau

Also Published As

Publication number Publication date
AU719372B2 (en) 2000-05-11
JP2000515648A (ja) 2000-11-21
AU3858997A (en) 1998-02-25
EP0917665A1 (fr) 1999-05-26
WO1998005998A1 (fr) 1998-02-12

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