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WO2018233989A1 - Vitre de véhicule dotée d'un dispositif à cristaux liquides - Google Patents

Vitre de véhicule dotée d'un dispositif à cristaux liquides Download PDF

Info

Publication number
WO2018233989A1
WO2018233989A1 PCT/EP2018/064086 EP2018064086W WO2018233989A1 WO 2018233989 A1 WO2018233989 A1 WO 2018233989A1 EP 2018064086 W EP2018064086 W EP 2018064086W WO 2018233989 A1 WO2018233989 A1 WO 2018233989A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
layer
vehicle window
vehicle
window according
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.)
Ceased
Application number
PCT/EP2018/064086
Other languages
German (de)
English (en)
Inventor
Daniela BAIERL
Steffen Lorenz
Jonas DIETRICH
Max BUCHMANN
Jan Grothe
Oliver HEISEL
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.)
Webasto SE
Original Assignee
Webasto SE
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 Webasto SE filed Critical Webasto SE
Publication of WO2018233989A1 publication Critical patent/WO2018233989A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10541—Functional features of the laminated safety glass or glazing comprising a light source or a light guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10018—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising only one glass sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10082—Properties of the bulk of a glass sheet
    • B32B17/10119—Properties of the bulk of a glass sheet having a composition deviating from the basic composition of soda-lime glass, e.g. borosilicate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10128—Treatment of at least one glass sheet
    • B32B17/10137—Chemical strengthening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
    • B32B17/10467—Variable transmission
    • B32B17/10495—Variable transmission optoelectronic, i.e. optical valve
    • B32B17/10504—Liquid crystal layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10733—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing epoxy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10743—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing acrylate (co)polymers or salts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/1077—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing polyurethane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10798—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing silicone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10816—Making laminated safety glass or glazing; Apparatus therefor by pressing
    • B32B17/10825—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts
    • B32B17/10834—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts using a fluid
    • B32B17/10844—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts using a fluid using a membrane between the layered product and the fluid
    • B32B17/10853—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts using a fluid using a membrane between the layered product and the fluid the membrane being bag-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10816—Making laminated safety glass or glazing; Apparatus therefor by pressing
    • B32B17/10871—Making laminated safety glass or glazing; Apparatus therefor by pressing in combination with particular heat treatment
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • 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
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • 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
    • G02F1/133302—Rigid substrates, e.g. inorganic substrates
    • 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
    • G02F1/133305—Flexible substrates, e.g. plastics, organic film
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/54—Arrangements for reducing warping-twist
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Definitions

  • the invention relates to a vehicle window having the features of the preamble of patent claim 1.
  • Such a vehicle window is known from practice and may be an adjustable or fixed roof element of a motor vehicle.
  • the vehicle window comprises a plate-like disk body, which as a rule consists of glass and forms the outer skin of the roof element.
  • the disk body On its inside, the disk body is provided with a liquid crystal arrangement which is electrically switchable and thus defines the transparency of the vehicle window.
  • the vehicle window is either largely translucent or substantially opaque, so that it forms a shading arrangement.
  • liquid crystals in droplet form in a polymer.
  • the liquid crystals are disordered, which is why essentially no light transmission is possible. There is a milky appearance.
  • the liquid crystals align, whereby light can be transmitted.
  • SPD Small Particle Device
  • An SPD film comprises small, rod-shaped particles in a corresponding cell, which are embedded in a thin plastic film and initially aligned arbitrarily. Under an electric field, these particles align so that light can be transmitted.
  • the problem is that such SPD films only in blue and not can be produced in a neutral color, which can be readily used in a motor vehicle.
  • the invention has for its object to provide a vehicle window according to the initially mentioned type formed vehicle window, which has a liquid crystal arrangement with uniform shading behavior even with a three-dimensionally curved disk body.
  • a vehicle window which comprises a plate-like, planar or curved window body which has an outer side facing away from the vehicle surroundings and an inner side facing away from the outer side and on the inner side of which a shading arrangement is formed, which is formed from a liquid crystal arrangement comprising a liquid crystal cell ,
  • the liquid crystal device comprises two layers of flexible thin glass, between which the liquid crystal cell is arranged and between which spacers are arranged, so that the liquid crystal cell has an at least substantially constant thickness over its extent.
  • the liquid crystal device By arranging the liquid crystal cell between two flexible thin glass layers, the liquid crystal device can follow the particular curved shape of the plate-like disk body, which can be made of glass or a plastic such as a polycarbonate or PMMA.
  • the plate-like disk body which can be made of glass or a plastic such as a polycarbonate or PMMA.
  • a good deformability of the liquid crystal arrangement is ensured.
  • a homogeneous thickness of the liquid crystal cell can be achieved over its extent despite deformation of the two thin glass layers.
  • the thin glass used for the liquid crystal arrangement of the vehicle windshield according to the invention is, in particular, a chemically tempered glass, which may be assigned to the group of aluminosilicate glasses and is designed to be flexible. Such a glass is characterized by a high resistance to breakage and scratching.
  • the layers of flexible thin glass each have a thickness of 0.1 mm to 1.5 mm. Due to the low layer thicknesses, the total weight of the vehicle window can be kept low according to the invention.
  • the use of the thin glass layers for the liquid crystal device prevents moisture diffusion through the substrates of the liquid crystal device formed by the thin glass layers.
  • the thin glass has a high thermal and mechanical stability. This can be counteracted bulges and ripples, which could lead to liquid accumulation and / or defects in the liquid crystal cell.
  • the liquid crystal device can directly form the inner visible surface of the vehicle window according to the invention, since the thin glass itself can already have a high visual appearance.
  • the pane body has a curvature along a longitudinal direction of the pane and along a transverse direction of the pane. This results in a three-dimensional curvature of the disk body.
  • the curvature can each have a radius of curvature between 1,000 mm and 10,000 mm, preferably between 2,000 mm and 5,000 mm.
  • the radius of curvature can vary, that is, it must not be constant in the respective direction.
  • a conductive layer for the electrical connection of the liquid-crystal cell is arranged on the vehicle electrical system of the vehicle in question.
  • an alignment layer on the two thin glass layers on the inside or on the conductive layers in each case an alignment layer can be arranged, the for example, may be formed from a UV-curing acrylate or a polyimide. These serve to advance the liquid crystals of the liquid crystal cell in the non-switched state.
  • the liquid crystal device of the vehicle window according to the invention can be operated over a wide temperature range with short switching times of about one second.
  • a low voltage for actuating the liquid crystal device that is, for switching between a blocking position and a passage position, sufficient.
  • the voltage which is in particular designed as an alternating voltage, may be less than 30 V.
  • the frequency of the AC voltage is for example 60 Hz, but may also be higher depending on the desired speed of the alignment of the liquid crystals and be up to 100 to 120 Hz or lower.
  • the liquid crystal arrangement of the vehicle window according to the invention in the unswitched state provides a very low transmission, which is less than 1% for visible light.
  • the color of the liquid crystal array is gray, but can be customized by incorporation of dyes.
  • the vehicle window according to the invention is in particular a roof element of the relevant vehicle.
  • This roof element may be formed as a fixed roof element, which is rigidly connected to the vehicle body, or as a movable roof element, which constitutes a cover element of a sliding roof arrangement.
  • a polarizer layer is provided in a preferred embodiment of the vehicle window.
  • the polarizer layer is preferably arranged between the disk body and the liquid-crystal arrangement, but may also be arranged on the side of the liquid-crystal arrangement facing away from the disk body.
  • the polarizer layer preferably has, independently of the arrangement, a polarization direction which may be oriented at right angles to a polarization direction of the liquid crystal cell in its unswitched state. The switched state is then assigned to the transmission state. But it is also conceivable that in the unswitched state of the liquid crystal cell, the polarization direction of the polarizer layer is parallel to the polarization direction of the liquid crystal cell, so that then the transmission state of the arrangement is present.
  • the polarizer layer is preferably connected to this functional layer via a length expansion compensation layer.
  • the length expansion compensation layer which is preferably optically isotropic, may be an acrylate layer, a thermoplastic polyurethane layer, an epoxy layer, a silicone layer or else a layer of a crosslinking material, such as ethylene vinyl acetate (EVA) or polyvinyl butane (PVB).
  • EVA ethylene vinyl acetate
  • PVB polyvinyl butane
  • the length expansion compensation layer preferably has a thickness of at least 0.2 mm, preferably of at least 0.4 mm.
  • the vehicle window according to the invention expediently has a peripheral RandumFumung.
  • the vehicle window according to the invention may have a splinter protection film which is arranged on the side of the vehicle window facing away from the window body.
  • the splinter protection film In order to ensure the retention function of the preferably scratch-resistant and / or tear-resistant splinter protection film, it is preferably at least partially overlapped by the circumferential edge foam or foamed into it.
  • the shatter-proofing film can be glued in a central region of the pane. In an edge region, the splinter protection film can have perforations for the passage of the edge foam.
  • the splinter protection film is formed, for example, from a polysiloxane-coated ethylene terephthalate film (PET film).
  • the splinter protection film can be bonded to the liquid crystal arrangement or to the polarizer layer via an adhesive film which consists of a polyvinyl butyral film (PVB film) or a transparent polyurethane film.
  • PVB film polyvinyl butyral film
  • transparent polyurethane film a polyurethane film
  • a disk inner body may be arranged on the inside of the vehicle window, which is formed from glass, in particular a thin glass, or from a plastic, in particular from polycarbonate.
  • plastic as a disk body and / or as a disk inner body is simplified by the fact that thin glass layers are used as a substrate for the liquid crystal array, each forming a perfect barrier layer.
  • the inherently insufficient barrier properties of the respective plastic can thus be at least partially neglected.
  • a special embodiment of the vehicle window according to the invention comprises a light guide layer, which can be connected via its edge to a light source or is connected via its edge to a light source.
  • the light guide layer which can be integrated in a single-stage process during the manufacture of the vehicle window together with the liquid crystal arrangement and the possible further layers, can be an illumination system for the interior of the vehicle in question.
  • the light guide layer is part of a so-called ambient light illumination of the vehicle in question.
  • the functionality of the switchable liquid crystal arrangement and the functionality of a planar illumination, in particular an ambient light illumination are combined with one another.
  • the optical fiber layer and the remplissigkristallan- order are separately and independently controllable, d. H. switchable so that the liquid crystal device assumes its transmission state or its blocking state and the optical fiber layer is lit or not illuminated.
  • the process parameters When connecting the individual layers of the vehicle window, the process parameters must be matched to the liquid crystal arrangement and the light guide layer, that both the adhesion of the two layers and the function of both layers is ensured.
  • the light guide layer is arranged on the side facing away from the vehicle surroundings of the liquid crystal arrangement. This means that the light guide layer is independent of
  • the light guide layer can form an inner visible surface of the vehicle window.
  • the light guide layer may be made of any suitable materials.
  • the optical waveguide layer may comprise a planar glass body, which offers the advantage that it may be possible to dispense with further protective layers on the inner side of the vehicle window.
  • the light guide layer may comprise a plastic film and / or a plastic plate. This is particularly advantageous if the vehicle window should be designed weight-optimized.
  • the optical waveguide layer In order to be able to give the optical waveguide layer specific desired luminous properties, it preferably contains scattering centers, which in particular can be formed by nanoparticles. The scattering centers are distributed in particular homogeneously in the light guide layer.
  • the optical waveguide layer has a printing which, for example, specifies a luminous pattern and can also serve as a reflection layer. It is also conceivable that the liquid crystal arrangement has a reflection layer.
  • the optical waveguide layer may further comprise a scratch-resistant coating.
  • the production of the vehicle window according to the invention can take place in different ways.
  • the individual layers of the vehicle window are connected after a vacuum lamination or autoclave process, whereby the composite of the individual layers is exposed to specific pressures and temperatures.
  • adhesive plastic films can be used asChinanausdehnungskompensations füren that undergo thermoplastic or crosslinking properties in a heating compound with the other layers, that is with the disk body, the liquid crystal array, the polarizer layer and / or the disc inner body.
  • Vakuumlamination takes place a one-sided heating of the composite by a hot plate, wherein a pressurization takes place via a pressure difference in a chamber which is divided into two by a membrane.
  • the laminate When manufactured in an autoclave chamber, the laminate is heated on all sides by means of circulating air. Air pressures up to about 15 bar can be set.
  • the manufacture of the vehicle window according to the invention can take place by a so-called optical bonding method, in which optically highly transparent and non-yellowing adhesives are used as length expansion compensation layers.
  • silicones can be used which have a high temperature stability and could later be removed without destruction.
  • polyurethanes, acrylates or epoxides could be used.
  • the invention also relates to a method for producing a vehicle window, comprising the following steps:
  • Creating a structure of a plurality of layers in a stacked form in a frame comprising a disk body, a liquid crystal device comprising a liquid crystal cell and two layers of flexible thin glass, between which the liquid crystal cell is disposed, and a Gaznausdehnungskompensati- ons harsh between the liquid crystal array and the disk body comprises, wherein at least the liquid crystal array and the length expansion compensating layer are arranged in a frame defining their relative position;
  • the structure arranged in the vacuum bag is heated while being subjected to the pressure.
  • the temperatures at which the structure is heated for example, between 50 ° C and 150 ° C.
  • the pressure exerted on the vacuum bag is preferably in a range between 1 bar and 20 bar, in particular between 1 bar and 12 bar. This process can be carried out in an autoclave chamber.
  • a pressure plate To stabilize the structure in the frame, it can be covered with a pressure plate.
  • the pressure plate provides an auxiliary structure which ensures that the individual layers of the structure maintain their shape during the joining process.
  • the structure may according to the vehicle window according to the invention comprise a polarizer layer and / or a light guide layer.
  • a switchable shading device in the form of the liquid crystal arrangement and a surface illumination system in the form of the light guide layer can be integrated into the vehicle window.
  • Figure 1 is a plan view of a vehicle roof with a vehicle window according to the invention
  • Figure 2 shows a section through the vehicle window, the layer structure
  • FIG. 3 shows a section through a second embodiment of a vehicle window according to the invention
  • Figure 4 is a section through a third embodiment of a vehicle window according to the invention.
  • Figure 5 is a section through a fourth embodiment of a vehicle window according to the invention.
  • Figure 6 is a section through a fifth embodiment of a vehicle window according to the invention.
  • Figure 7 is a section through a sixth embodiment of a vehicle window according to the invention.
  • FIG. 9 shows a section through a seventh embodiment of a vehicle window according to the invention.
  • FIGS. 10a to e show the manufacture of the vehicle window according to FIG. 9.
  • FIG. 1 shows a vehicle roof 10 of a motor vehicle, which is not shown in detail.
  • the vehicle roof 10 is a panoramic roof, which is provided with an adjustable cover element 12 of a sunroof and a fixed roof element 14 which is rigidly connected to the structure of the motor vehicle.
  • the lid member 12 and the fixed compartment member 14 are each formed as a glass element and thus as a vehicle window.
  • the cover element 12 and the fixed roof element 14 each have the same layer structure, which is provided with a shading arrangement and which is illustrated with reference to FIG.
  • Each formed as a vehicle window roof panels 12 and 14 each form a disc assembly, which is a disc body 16 which is formed of a along a disc longitudinal direction and along a disc transverse direction in each case curved glass plate and the outer skin of the respective vehicle window.
  • a polarizer layer 20 which comprises a linear polarizer, is connected via a length expansion compensation layer 18 with adhesive properties.
  • the length-expansion compensating layer 18 may be formed of thermoplastic polyurethane, polyvinyl butyral, ethylene-vinyl acetate copolymer or the like.
  • the polarizer layer 20 is in turn applied to a liquid crystal array 22, which forms a flat shading arrangement of the vehicle window.
  • the liquid crystal assembly 22 is further provided with a splinter protection film 24.
  • the anti-shatter film 24 consists of a polysiloxane-coated polyethylene terephthalate film.
  • the polarizer layer 20 has a polarization direction which is oriented at right angles to the polarization direction of the liquid crystal cell 32 in its blocking position.
  • the vehicle windows forming the cover element 12 and the fixed roof element 14 have in each case an encircling edge foam 26, which engages over the splinter protection film 24 on the inside of the respective vehicle window and which is formed from a polyurethane foam.
  • the liquid crystal array 22 comprises two thin glass layers 28 and 30 having a thickness of about 0.5 mm.
  • the respective thin glass is a chemically toughened glass and flexible.
  • a single liquid crystal cell 32 is arranged.
  • a conductive layer for electrical connection of the liquid crystal cell to an electrical system of the vehicle is arranged in each case.
  • a respective alignment layer is expediently arranged on the conductive layers.
  • the alignment layers which may be formed of a polyimide or a UV-curing acrylate, respectively limit the liquid crystal cell 32 and serve for Pre-alignment of the liquid crystals in the liquid crystal cell in the non-switched state.
  • the two alignment layers are separated from one another by spacers 33, not shown in more detail, so that the thickness of the liquid crystal cell 32 in which the liquid crystals are arranged is at least substantially constant over the extent of the liquid crystal arrangement.
  • FIG. 3 shows an alternative embodiment of a vehicle window 40 which differs from the vehicle window illustrated in FIG.
  • polarizer layer 20 which is laminated directly onto the inside of the pane body 16 forming the outer skin.
  • the polarizer layer 20 is bent over a length expansion compensation layer 18 formed of an acrylate layer, a thermoplastic polyurethane layer, an epoxy layer, a silicone layer, or a layer of a crosslinking material such as ethylene vinyl acetate (EVA) or polyvinyl butyral (PVB) Liquid crystal device 22 which corresponds to the liquid crystal device shown in Figure 1.
  • EVA ethylene vinyl acetate
  • PVB polyvinyl butyral
  • the vehicle window 40 according to FIG. 3 also has a peripheral edge foam 26 made from a polyurethane foam. Between the thin glass layers 28 and 30 spacers 33 are arranged. It is also conceivable for the polarization layer 18 to be connected both to the disk body 16 and to the liquid crystal arrangement 22 via a length expansion compensation layer of the type described above.
  • FIG. 4 shows a further embodiment of a vehicle window 50, which likewise largely corresponds to the vehicle window according to FIG. 2, but differs therefrom in that a liquid crystal arrangement 22, which likewise has two layers 28 and 30 of bent thin glass, corresponding to the embodiment of FIG which bound a liquid crystal cell 32 is connected via a length expansion compensation layer 18 directly to a disk body 16 forming the outer skin.
  • a polarizer layer 20 is laminated onto the liquid crystal device 22, to which in turn a splinter protection film 24 is laminated.
  • the splinter protection film 24 is overlapped according to the embodiments described above at their edges by a circumferential polyurethane edge foam of the vehicle pulley 50.
  • FIG. 5 shows a further embodiment of a vehicle window 60 according to the invention.
  • the vehicle window 60 differs from the vehicle window according to FIG. 2 in that it has no anti-shatter protection film on the inside. Rather, a further layer 64 of bent thin glass is on another length expansion compensation layer 62 with adhesive properties on the
  • Liquid crystal assembly 22 laminated. This thin glass forms the inner visible surface of the vehicle window 60.
  • FIG. 6 shows a further embodiment of a vehicle window 70 according to the invention.
  • the vehicle window 70 differs from the vehicle window according to FIG. 5 in that it comprises a window body 16 'made of a plastic material, such as a polycarbonate. In addition, it also has on the inside, instead of a glass layer, a layer 64 'of a plastic material, such as polycarbonate.
  • the vehicle window 70 corresponds to the vehicle window according to FIG. 5.
  • FIG. 7 shows an alternative vehicle window 100 for use with a cover element or a fixed roof element of the type shown in FIG.
  • the vehicle window pane 100 forming a pane arrangement has a pane body 16, which may have a three-dimensional curvature and to which a liquid crystal arrangement 22 is attached on the inside via a length expansion compensation layer 18, which has adhesive properties.
  • the liquid crystal device 22 comprises two thin glass layers 28 and 30 between which a single liquid crystal cell 32 and spacers 33 are interposed.
  • conductive layers 28 and 30 are arranged on the insides of the foils and can be connected to the vehicle electrical system of the vehicle in question via a corresponding contact-connection, not shown in more detail.
  • the liquid crystal cell 32 can be switched between a transmission state and a blocking state.
  • An optical waveguide layer 80 which is formed from a thin plastic plate made of PMMA (polymethyl methacrylate) or the like, in which nanoparticles are embedded to produce scattering centers, is in turn connected to the liquid crystal arrangement 22 via a further length expansion compensation layer 102.
  • the light guide layer 80 On the inside, ie the side facing the vehicle interior, the light guide layer 80 is also provided with a scratch-resistant coating (hard coat) 82.
  • the light guide layer 80 is connected via its peripheral edge with a light source 81, so that in a corresponding switching state of the light source, light can be coupled into the light guide layer 80 and thus can be used as lighting for the relevant vehicle interior.
  • the length-expansion compensating layers 18 and 102 are formed corresponding to the length-expansion compensating layers of the embodiment of FIG.
  • a polarizer layer 20 is additionally arranged between the liquid crystal arrangement 22 and the light guide layer 80.
  • the polarizer layer 20 is laminated on the liquid crystal device 20 and can Alternatively, between the liquid crystal array 22 and the disk body 16 may be arranged.
  • the light guide layer 80, the liquid crystal array 22 with the polarizer layer 20, and the length expansion compensating layers 18 and 102 are provided (FIG. 8 a) and then stacked in a frame 84 and placed on the disk body 16.
  • the frame 84 is made of PTFE.
  • a pressure plate 86 is placed on the above-arranged light guide layer 80, which is provided with the scratch-resistant coating 82, so that an intimate connection between the individual placed on the disk body 16 layers ( Figure 8b).
  • the frame, together with the layer structure comprising the disk body 16, the length expansion compensation layers 18 and 102, the liquid crystal array 22, the polarizer layer 20, the light guide layer 80 and the pressure plate 46 is placed in a vacuum bag 98 (FIG. 8c).
  • FIG. 9 shows a further alternative embodiment of a pane arrangement 1 10 for use in a cover element or a fixed roof element of the type shown in FIG.
  • the disk assembly 110 also comprises a disk body 16, which may also have a three-dimensional curvature and to the inside via a Trustnausdehnungskom- compensation layer 18, which has adhesive properties, a liquid crystal array 22 is connected, which is formed according to the embodiment of Figure 7. Again, the liquid crystal array 22 is provided on its side facing away from the disk body 16 with a polarization layer 20. Via a further length expansion compensation layer 102, a light conductor layer 80 ', which can be regarded as a disk inner body and consists of a clear glass panel, is connected to the liquid crystal arrangement 22 with the polarizer layer 20. The light guide layer 80 'forms the inner visible surface of the disc assembly 1 10.
  • the light guide layer 80' On the side facing away from its inner visible surface, the light guide layer 80' is provided with a printing pattern 1 12, which supports the effect of the light guide layer 80 'as an ambient light illumination device. At its peripheral edge, the light guide layer 80 'is connected in the installed position with at least one light source 81, by means of the light in the light guide layer 80' can be coupled.
  • two functionalities are integrated, namely on the one hand a shading functionality in the form of the switchable liquid crystal array 22 together with the polarizer layer 20 and on the other hand, a lighting functionality in the form of the light guide layer 80 ', which is connected to the switchable light source 81 and is connectable. Again, both functions are independently controllable.
  • the production of the disk arrangement 1 10 forming a lamination structure shown in FIG. 9 takes place substantially analogously to the production of the disk arrangement according to FIG. 7, which is illustrated with reference to FIG. 8 and is illustrated with reference to FIG.
  • the length expansion compensation layer 18, the liquid crystal array 22 with the polarization layer 20, the longitudinal expansion compensation layer 102 and the precut light guide layer 80 'formed from a glass panel (FIG. 10a).
  • These layers which are intended to form a layer structure with the disk body 16 in the arranged form, are then arranged in a frame 84 on the disk body 16 in a stacked form.
  • the frame 84 holds the relative position of the individual layers of the layer structure (FIG. 10b).
  • the disk body 16 is inserted into a vacuum bag together with the frame 84 which receives said layers ( Figure 10c), which is then vented and subjected to an elevated pressure and temperature.
  • the optical waveguide layer 80 ', the liquid crystal array 22 with the polarizer layer 20 and the disk body 16 are arranged together in one process step (FIG. 10d).
  • the finished product that is, the disc assembly 1 10 can be removed from the vacuum bag 98 and after release from the frame 84 further processed or provided for use in a sliding roof cover element, a fixed roof element or the like ( Figure 10e).

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Abstract

L'invention concerne une vitre de véhicule comprenant un corps de vitre (16) en forme de panneau qui présente une face extérieure orientée vers un environnement du véhicule et une face intérieure opposée à la face extérieure, la face intérieure comprenant un dispositif d'ombrage constitué d'un dispositif à cristaux liquides (22) comprenant une cellule à cristaux liquides (32). Le dispositif à cristaux liquides (22) comprend deux couches (28, 30) de verre mince souple, entre lesquelles est disposée la cellule à cristaux liquides (32), des espaceurs étant disposés entre les deux couches (28, 30) de verre mince de sorte que la cellule à cristaux liquides (32) présente une épaisseur au moins largement constante sur son étendue.
PCT/EP2018/064086 2017-06-23 2018-05-29 Vitre de véhicule dotée d'un dispositif à cristaux liquides Ceased WO2018233989A1 (fr)

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WO2020083561A1 (fr) 2018-10-24 2020-04-30 Saint-Gobain Glass France Vitre feuilletée comprenant un élément fonctionnel doté de propriétés optiques pouvant être commandées électriquement et image optique améliorée
CN114556202A (zh) * 2020-09-18 2022-05-27 法国圣戈班玻璃厂 液晶层压窗玻璃
CN115519852A (zh) * 2021-06-25 2022-12-27 上海科德汽车部件有限公司 一种多层结构薄膜复合体增强的安全玻璃板及其制造方法
US11679649B2 (en) 2018-10-04 2023-06-20 Acr Ii Glass America Inc. Multifunctional switchable film and constructions including such a film

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FR3114266B1 (fr) * 2020-09-18 2022-11-18 Saint Gobain VITRAGE FEUILLETE A CRISTAUX LIQUIDES ET A COUPURE DANS l’UV

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WO1994011779A2 (fr) * 1992-11-12 1994-05-26 Crystalens Limited Dispositif a cristaux liquides
US6466298B1 (en) * 1996-08-22 2002-10-15 Saint-Gobain Glass France Glazing with variable optical and/or energetic properties
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WO2020083561A1 (fr) 2018-10-24 2020-04-30 Saint-Gobain Glass France Vitre feuilletée comprenant un élément fonctionnel doté de propriétés optiques pouvant être commandées électriquement et image optique améliorée
CN114556202A (zh) * 2020-09-18 2022-05-27 法国圣戈班玻璃厂 液晶层压窗玻璃
CN115519852A (zh) * 2021-06-25 2022-12-27 上海科德汽车部件有限公司 一种多层结构薄膜复合体增强的安全玻璃板及其制造方法
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