EP4127828A1 - Elektrisch steuerbare vorrichtung mit variabler diffusion durch flüssigkristalle und verfahren dafür - Google Patents

Elektrisch steuerbare vorrichtung mit variabler diffusion durch flüssigkristalle und verfahren dafür

Info

Publication number
EP4127828A1
EP4127828A1 EP21720800.8A EP21720800A EP4127828A1 EP 4127828 A1 EP4127828 A1 EP 4127828A1 EP 21720800 A EP21720800 A EP 21720800A EP 4127828 A1 EP4127828 A1 EP 4127828A1
Authority
EP
European Patent Office
Prior art keywords
layer
liquid crystals
mesophase
electric field
electrode
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.)
Pending
Application number
EP21720800.8A
Other languages
English (en)
French (fr)
Inventor
Frédéric MONDIOT
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.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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 Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of EP4127828A1 publication Critical patent/EP4127828A1/de
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/137Devices 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
    • G02F1/13731Devices 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 field-induced phase transition
    • G02F1/13737Devices 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 field-induced phase transition in liquid crystals doped with a pleochroic dye
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/137Devices 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
    • G02F1/13756Devices 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 the liquid crystal selectively assuming a light-scattering state
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1334Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • G02F1/13345Network or three-dimensional gels
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1343Electrodes
    • G02F1/134309Electrodes characterised by their geometrical arrangement
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/137Devices 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
    • G02F1/13775Polymer-stabilized liquid crystal layers
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528Polarisers
    • G02F1/133531Polarisers characterised by the arrangement of polariser or analyser axes
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/137Devices 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
    • G02F1/13787Hybrid-alignment cells
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F2202/00Materials and properties
    • G02F2202/04Materials and properties dye
EP21720800.8A 2020-04-01 2021-03-26 Elektrisch steuerbare vorrichtung mit variabler diffusion durch flüssigkristalle und verfahren dafür Pending EP4127828A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2003244A FR3108990A1 (fr) 2020-04-01 2020-04-01 DIspositif ELECTROCOMMANDABLE A DIFFUSION VARIABLE
PCT/FR2021/050530 WO2021198596A1 (fr) 2020-04-01 2021-03-26 Dispositif electrocommandable a diffusion variable par cristaux liquides et son procede

Publications (1)

Publication Number Publication Date
EP4127828A1 true EP4127828A1 (de) 2023-02-08

Family

ID=70614310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21720800.8A Pending EP4127828A1 (de) 2020-04-01 2021-03-26 Elektrisch steuerbare vorrichtung mit variabler diffusion durch flüssigkristalle und verfahren dafür

Country Status (5)

Country Link
US (1) US20230152649A1 (de)
EP (1) EP4127828A1 (de)
CN (1) CN113767325A (de)
FR (1) FR3108990A1 (de)
WO (1) WO2021198596A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023209726A1 (en) * 2022-04-29 2023-11-02 Saint-Gobain Glass France An automotive glazing unit having a switching assembly capable of having a stable performance solution
TWI833509B (zh) * 2022-12-20 2024-02-21 國立成功大學 液晶顯示元件、及其製備方法

Family Cites Families (29)

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Publication number Priority date Publication date Assignee Title
GB217907A (en) 1923-06-21 1924-11-20 Raoul Boizard Improvements in or relating to reflecting water level gauges
GB308990A (de) 1928-04-02 1930-08-05 Richard Senkel
GB308984A (en) 1928-04-02 1930-10-02 Alexandre Auguste Eveno Improvements in carburettors
GB308987A (en) 1928-04-02 1930-05-15 Anthon Johannes Baagoe Method of, and apparatus for, displaying rows of letters, signs or figures
BE565068A (de) 1957-02-22
US5437811A (en) * 1991-05-02 1995-08-01 Kent State University Liquid crystalline light modulating device and material
KR100320567B1 (ko) * 1992-05-18 2002-06-20 액정광변조장치및재료
US7009665B2 (en) * 1995-10-30 2006-03-07 Le Li Electro-optical glazing structures having scattering and transparent modes of operation and methods and apparatus for making the same
ES2183106T5 (es) 1996-11-26 2016-09-29 Saint-Gobain Glass France Utilización de un acristalamiento laminado para la amortiguación de vibraciones de origen sólido en un vehículo
US6674504B1 (en) * 2000-09-29 2004-01-06 Kent Optronics, Inc. Single layer multi-state ultra-fast cholesteric liquid crystal device and the fabrication methods thereof
FR2827397B1 (fr) * 2001-07-12 2003-09-19 Saint Gobain Dispositif electrocommandable a proprietes optiques variables ou systeme holographique, thermotrope ou a particules en suspension
DE10257711B4 (de) 2001-12-27 2019-09-26 Merck Patent Gmbh Polymerisierbare monocyclische Verbindungen enthaltende Flüssigkristallmischungen
FR2844364B1 (fr) 2002-09-11 2004-12-17 Saint Gobain Substrat diffusant
US7026042B2 (en) 2003-03-26 2006-04-11 The United States Of America As Represented By The Secretary Of The Navy Highly conducting and transparent thin polymer films formed from double and multiple layers of poly(3,4-ethylenedioxythiopene) and its derivatives
JP4100510B2 (ja) 2003-07-30 2008-06-11 日本板硝子株式会社 調光体及び合わせガラス
GB0823013D0 (en) 2008-12-18 2009-01-28 Cambridge Entpr Ltd Wide temperature-range smectic liquid crystall materials
FR2945985B1 (fr) 2009-05-27 2011-05-20 Saint Gobain Vitrage a faible niveau de double image.
GB0909422D0 (en) * 2009-06-02 2009-07-15 Cambridge Entpr Ltd Electro-Optical Switching Device
FR2961916B1 (fr) * 2010-06-25 2013-04-12 Saint Gobain Vitrage feuillete a diffusion variable par cristaux liquides, son procede de fabrication et dispositif pour sa fabrication
FR2965641B1 (fr) * 2010-10-04 2013-10-11 Saint Gobain Vitrage multiple a diffusion variable par cristaux liquides, son procede de fabrication
CN102053417B (zh) * 2010-12-09 2012-05-09 宁波大学 一种聚合物分散液晶三稳态膜及其制备方法
GB201100375D0 (en) * 2011-01-10 2011-02-23 Cambridge Entpr Ltd Smectic A compositions for use in electrical devices
FR2985327B1 (fr) * 2011-12-29 2013-12-20 Saint Gobain Vitrage multiple a diffusion variable par cristaux liquides, son procede de fabrication
EA030714B1 (ru) 2012-03-05 2018-09-28 Сэн-Гобэн Гласс Франс Стекло, снабженное покрытием, отражающим тепловое излучение
FR2997517B1 (fr) * 2012-10-31 2015-11-20 Saint Gobain Systeme a diffusion lumineuse variable comprenant une couche pdlc
FR2997770B1 (fr) 2012-11-07 2015-11-20 Saint Gobain Support electroconducteur pour vitrage a diffusion variable par cristaux liquides, et un tel vitrage
US9575352B2 (en) * 2013-07-23 2017-02-21 3M Innovative Properties Company Addressable switchable transparent display
FR3021418B1 (fr) * 2014-05-22 2018-03-02 Institut Mines Telecom - Telecom Bretagne Dispositif d'obturation electro-optique a double mode d'attenuation
FR3086771A1 (fr) * 2018-09-27 2020-04-03 Saint-Gobain Glass France Dispositif electrocommandable a diffusion variable par cristaux liquides et son procede.

Also Published As

Publication number Publication date
WO2021198596A1 (fr) 2021-10-07
CN113767325A (zh) 2021-12-07
FR3108990A1 (fr) 2021-10-08
US20230152649A1 (en) 2023-05-18

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