WO2012045973A1 - Vitrage multiple a diffusion variable par cristaux liquides, son procède de fabrication - Google Patents
Vitrage multiple a diffusion variable par cristaux liquides, son procède de fabrication Download PDFInfo
- Publication number
- WO2012045973A1 WO2012045973A1 PCT/FR2011/052311 FR2011052311W WO2012045973A1 WO 2012045973 A1 WO2012045973 A1 WO 2012045973A1 FR 2011052311 W FR2011052311 W FR 2011052311W WO 2012045973 A1 WO2012045973 A1 WO 2012045973A1
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- WIPO (PCT)
- Prior art keywords
- glazing
- edge
- liquid crystal
- wiring
- electrical
- Prior art date
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- 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
- B32B17/10036—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 two outer glass sheets
- B32B17/10045—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 two outer glass sheets with at least one intermediate layer consisting of a glass sheet
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- 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
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- 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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
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- 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
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- 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
- B32B17/10293—Edge features, e.g. inserts or holes
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- 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
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- 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
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
- B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
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- 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
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
- E06B3/6715—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased thermal insulation or for controlled passage of light
- E06B3/6722—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased thermal insulation or for controlled passage of light with adjustable passage of light
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- 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
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- 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
- G02F1/0102—Constructional details, not otherwise provided for in this subclass
- G02F1/0107—Gaskets, spacers or sealing of cells; Filling and closing of cells
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- 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
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- 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
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
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- 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
Definitions
- the invention relates to the field of electrically controllable glazings with variable optical properties and more particularly relates to a multiple glazing with variable diffusion by liquid crystals, provided with a layer of liquid crystals between two glasses and reversibly alternating by application of a field alternating electric between a transparent state and a translucent state.
- Glazes are known whose characteristics can be modified under the effect of a suitable power supply, especially the transmission, absorption, reflection in certain wavelengths of electromagnetic radiation, especially in the visible and / or in the infrared, or the light diffusion.
- the electrically controllable liquid crystal glazing can be used everywhere, in both the construction sector and the automotive sector, whenever the view through the glazing is to be prevented at given times.
- WO9805998 discloses a liquid crystal multiple glazing unit comprising:
- the two glass sheets are offset leaving opposite edges of projecting electrodes in order to facilitate the application of the adhesive-coated copper strips to distribute the current to the electrodes.
- the object of the present invention is to improve the robustness and reliability of liquid crystal variable diffusion glazing, at low cost, in a simple and long-term manner.
- the present invention proposes a multiple glazing with variable diffusion by liquid crystals, with a singing, glazing presenting:
- first glass sheet with a (main) face, said first internal face and another (main) face, said first external face (opposite to the internal face) and a so-called first slice,
- a second glass sheet with a (main) face said second internal face and another (main) face said second external face (opposite to the internal face) and a so-called second slice,
- first and second sheets of glass in particular floated, being sealed (at the edges of their internal faces) by a sealing gasket (peripheral),
- first and second electrodes respectively on the first and second internal faces, in the form of transparent electrically conductive layers, first and second electrodes respectively having first and second power supply zones,
- a layer of liquid crystals reversibly alternating between a transparent state and a translucent state by applying an alternating electric field, a layer of a thickness of between 15 and 60 ⁇ , including those values and incorporating spacers, preferably spherical, transparent, in particular plastic or even glass,
- the first glass sheet protruding from one edge of the second wafer, by a first (main) edge of the first internal face, said first protruding edge, and comprising the first electrical supply zone,
- first electrical insulation material of the first wiring input polymeric, and possibly a second electrical insulation material of the second wiring input, polymeric, identical to or distinct from the first,
- a third sheet of laminated glass by the second external face with the second sheet of glass by a first interlayer of lamination in a first transparent polymeric interlayer material, the third sheet of glass (and optionally the first interlayer of lamination) exceeding the second glass sheet, by a (main) edge of its inner face, covering the first electrical insulation material, said first covering edge.
- the third glass provides a mechanical protection of the first wiring input, preventing in particular a possible tearing cable in this area.
- the first electrical insulation material in turn strengthens the mechanical strength and the maintenance of the cable entry on the glass, secures the liquid crystal glazing and is mechanically protected by the first edge covering.
- the installation of the liquid crystal glazing is facilitated especially when the liquid crystal glazing is slid into a frame.
- the liquid crystal glazing is therefore both mechanically stronger and electrically secure.
- the first electrical insulating material may preferably completely fill the gap between the first covering edge and the first protruding edge.
- the first covering edge may cover all or part of the first protruding edge.
- the diameter of the wiring entry can be at least 0.3 mm or even at least 1 mm.
- the width of the first protruding edge may be at least 3 mm, or even at least 10 mm.
- the width of the first covering edge may be at least 3 mm or at least
- the wafer of the first glass sheet along the first wiring entrance is then substantially coplanar with the wafer of the third glass sheet.
- the liquid crystal glazing may comprise a fourth sheet of laminated glass by the first outer face with the first sheet of glass by a second lamination interlayer of a transparent interleaved polymeric material, in particular based on ethylene-vinyl acetate, polyvinylbutyral or polyurethane and preferably identical to the first intermediate material.
- PU polyurethane
- EVA ethylene / vinyl acetate copolymer
- PVB polyvinyl butyral
- a copolymer of polyethylene and acrylate by example sold by Dupont under the name of Butacite or sold by Solutia under the name of Saflex.
- EVA ethylene / vinyl acetate copolymer
- PVB polyvinyl butyral
- These plastics have for example a thickness between 0.2 mm and 1.1 mm, especially 0.38 and 0.76 mm including these values.
- plastics that may be used include polyolefins such as polyethylene (PE), polypropylene (PP), ethylene polynaphthalate (PEN) or polyvinyl chloride (PVC) or ionomer resins.
- PE polyethylene
- PP polypropylene
- PEN ethylene polynaphthalate
- PVC polyvinyl chloride
- This double lamination also allows the glazing to be classified:
- the glazing may further be protected from ultraviolet radiation by the addition of additives in the intercalated materials.
- All glass sheets are preferably of the same shape (curves or corners).
- the electrical wiring comprises a first electrical cable with the first wiring input and on at least a portion of its length beyond the first input of the wiring , in particular comprising at least one sheath (the inner sheath or even the conventional outer sheath of the cable), is housed in a groove formed:
- the groove or grooves protect and form a cable guide.
- the cable may be flush with the throat or completely in the throat.
- the insertion in the groove also allows to have a more compact glazing, to avoid a local extra thickness.
- Various wiring configurations can be envisioned along only one edge (lateral or longitudinal) of the glazing or on two adjacent or opposite edges of the glazing.
- the height of the peripheral groove between the protruding edge and the covering edge may be at least about 3 mm.
- the height of the peripheral groove between the third and the fourth glass (substantially corresponding to the thickness of the first and second glass sheets) may be at least about 6 mm.
- the electrical wiring may comprise a first electrical cable with the first wiring input and which over at least a portion of its length beyond the first input of the wiring comprises a sheath, in particular the inner sheath, covered by a material maintaining polymeric material (or even in direct contact), in particular a watertight or liquid-vaporous and / or electrically insulating material, preferably identical or even forming the first electrical insulation material, and the sheath preferably being fixed by the material holding (sheath preferably immersed in the holding material).
- a polymeric maintenance material sufficiently adherent to the sheath and adhered to the glass for example thermoplastic, is chosen.
- EVA for example has good adhesion with glass and a polyvinyl chloride (PVC) sheath unlike a fluorinated sheath (Teflon etc).
- PVC polyvinyl chloride
- Teflon fluorinated sheath
- This polymeric support material may be an adhesive.
- the thickness of the polymeric holding material is for example substantially equal to the cable diameter, for example of the order of 5 mm, especially if the cable is along the edge of the glazing.
- the holding material sets this length of wiring against the edge.
- this holding material can completely fill the groove at least on its more external part than the cable.
- This holding material further improves the mechanical strength and the positioning of the cable, facilitates the installation of the glazing especially when the glazing is slid into a frame.
- the wiring is covered all along the glazing by this material (before its exit for connection to the sector).
- the electrical wiring may comprise a first electrical cable with the first wiring entry and fixed in a determined unidirectional position, in particular linear, especially along the edge or a peripheral groove of the glazing, at the exit of the glazing or at from outside the first wiring input with the first electrical insulation material.
- the first electrical insulation material which can initiate a privileged direction as soon as the wiring entry zone
- the electrical wiring comprises a (single) first cable whose input is at the edge likely to be, after mounting the glazing, the upper edge or respectively lower (position relative to the ground) of the edge of the glazing or peripheral groove of the glazing, from the outside of the first wiring entry with the first electrical insulating material, this first cable is unidirectional, to the (general) power supply, in particular to the ceiling or respectively on the ground.
- the electrical wiring comprises a (single) first cable whose input is at the edge likely to be, after mounting the glazing, the side edge of the edge of the glazing or of a peripheral groove of the glazing, from the outside of the first wiring entry with the first electrical insulation material, the cable is unidirectional.
- the side edge is vertical after mounting, and may be either longer, equal or shorter than the horizontal edge.
- the cable follows a single edge.
- the electrical wiring can leave the glazing, in particular without coverage by the first electrical insulation material, in a single zone, in particular an area of only one edge of the edge, and preferably the wiring is constituted a single first electrical cable that is bi-stranded.
- the first power supply zone may comprise a first current supply on which is fixed the first wiring input and which is covered by the first covering edge and possibly protected by the first material of electrical insulation.
- the first power supply (commonly called "bus bar”) is for example an electroconductive strip in the form of a flexible copper foil attached to the first electrode along the edge.
- the glazing may comprise a seal with liquid water or steam, external to the seal and formed by a polymeric sealing material, in particular electrically insulating, the seal being arranged to sealing the first wiring input, and preferably any first current supply, and (all or part) of the first electrode in the area outside the seal.
- the polymeric sealing material according to the invention adheres sufficiently to the glasses and if necessary to the first interlayer material. It is also not necessary to add layer (s) (thin) of attachment to the surface of (s) glass (s) to strengthen the adhesion.
- the polymeric sealing material thus guarantees the sealing with liquid water, or even steam, especially very strict in humid environments (bathroom, etc.).
- a water room (separate or part of a room or any other room), a laundry, a laundry, in a bathroom, a shower, especially as floor, wall, partition, door (possibly sliding), front window or interior window,
- the sealing material further forms the first electrical insulation material.
- the seal may be along at least one edge of the first wafer and / or along a peripheral groove formed in the glazing, in particular between the first protruding edge and the first covering edge.
- the seal with liquid water, or even vapor is furthermore arranged for sealing the second wiring inlet, and preferably for a possible current supply of the second electrode and (on all or part) of the second electrode in the area outside the seal.
- the water-tight seal is around the entire periphery of the glazing:
- the water seal may border or possibly cover the electrical wiring, the sealing material may in particular be the maintenance material already mentioned.
- the water seal may be free of an external environment including opaque (rigid frame, stick, carpentry ).
- the water seal can provide a satisfactory finish required for edge-to-edge installations and door glazing installations. Moreover, the seal can dampen shocks, in particular to protect the glazing corners.
- Transparent sealing material such as EVA
- EVA EVA
- the width (cross section) of the seal with liquid water is not necessarily identical all around.
- the wiring entry is along the edge
- the holding material can be formed from the first interlayer film overflowing the third glass sheet (including folded to surround the wiring) .
- thermoplastic For the first electrical insulation material and / or the sealing material and / or a material for holding the electrical wiring, a material adhering to the glass, for example thermoplastic, is chosen.
- the first electrical insulating material and / or the sealing material of the joint which eventually forms the first electrical insulating material and / or the electrical wiring holding material can be advantageously converted (ie shaped, in particular by softening, gluing, liquefaction and preferably crosslinking) by thermal cycle, especially in an oven or by simple heating. This transformation is preferable:
- hot melt adhesive in English
- the first electrical insulation material may be ethylene-vinyl acetate (moldable material) or silicone, in particular to provide a seal with liquid water or steam.
- the first electrical insulation material may also be finally thermosetting resin, especially epoxy resin, preferably using the same material as the seal and also providing sealing liquid water or steam.
- the first electrical insulation material may be polyurethane or polystyrene (which are moldable) or polyvinyl butyral or ionomeric resin, but not provide a waterproof function.
- the sealing material which possibly forms the first electrical insulation material and / or which possibly forms a material for holding the electrical wiring is crosslinked, in particular forming a three-dimensional network for reinforcing the waterproofness with liquid water , even steam.
- the first electrical insulating material and / or the sealing material and / or a material for holding the electrical wiring may be silicone or based on ethylene-vinyl acetate, in particular crosslinked by agents such as organic peroxide.
- the EVA in particular adheres well to the glass as already indicated.
- the first intermediate material may be an organic assembly polymer, in particular thermoplastic, ethylene-vinyl acetate (EVA) or polyvinyl butyral (PVB), or polyurethane (PU), the first plastic interlayer possibly being in contact with the first electrical insulating material and / or the gasket sealing material and / or the electrical wiring holding material.
- EVA ethylene-vinyl acetate
- PVB polyvinyl butyral
- PU polyurethane
- the first intermediate material can advantageously be converted by thermal cycling as the first electrical insulating material and / or the sealing material and / or the cabling retaining material. by successive transformations of these materials during distinct thermal cycles (especially in an oven),
- the first electrical insulating material and / or the sealing material of the seal which possibly forms the first electrical insulating material and / or a material for holding the electrical wiring may have a so-called external surface, facing outwards of the glazed, which is molded.
- the outer surface may be flat, smooth or deliberately grooved, serrated. It can form a profile especially for a saving of material, being bulging outwards for example.
- the first protruding edge can be obtained by shifting the first and second slices or by partially cutting the second slice.
- the second glass sheet may protrude from one edge edge of the first glass sheet, by an edge of the second internal face said other edge protruding, having the second power supply zone, and in that the glazing comprises:
- a second electrical insulation material of the second wiring input polymeric, identical or different from the first electrical insulation material
- a fourth laminated glass sheet by the first external face with the first glass sheet by a second lamination interlayer of a transparent polymeric material, the fourth glass sheet (and optionally the second lamination interlayer) protruding from the first glass sheet, by an edge of its inner face, covering the second electrical insulation material, said other covering edge.
- the first protruding edge may extend over a limited portion of the first edge of the first internal face, the excess being obtained by a partial cut of the second edge.
- the second glass sheet may protrude from an edge of the first wafer, by an edge of the second inner face said other protruding edge, having the second power supply zone, and extending over a limited portion of an edge of the second inner face, the exceeding being obtained by a partial cut of the first wafer, and preferably the first protruding edge and the other protruding edge are on the same edge of the glazing.
- the liquid crystal glazing is thus further simplified by forming first and second close electrical supply zones and / or in addition this can limit the length of wiring needed. However, sufficient space is left between them to prevent heating of the cable entry connections - external parts, for example by welding.
- the ends of the first and second wiring entries are spaced apart by a so-called separation length, measured along the main plane of the glazing, greater than or equal to 10 cm, or even greater than or equal to 15 cm, in particular less than 30 cm.
- each of the first and second sheets of glass is cut halfway along the width of this piece of glass. edge.
- the spacers may preferably be made of a hard transparent plastics material.
- the spacers determine (roughly) the thickness of the liquid crystal layer.
- PMMA polymethylmethacrylate
- the spacers are preferably in terms of optical index (substantially) equal to the optical index of (the matrix of) the liquid crystal layer.
- the liquid crystal layer may be based on liquid crystals of different types.
- NCAP Nematic Curvilinearly Aligned Phases in English
- PDLC Polymer Dispersed Liquid Crystal in English
- CLC Cholesteric Liquid Crystal in English
- NPD-LCD Non-Homogeneous Polymer Dispersed Liquid Crystal Display
- These may further contain dichroic dyes, especially in solution in the liquid crystal droplets. It is then possible to modulate the light scattering and the light absorption of the systems.
- cholesteric liquid crystal-based gels containing a small amount of crosslinked polymer such as those described in patent WO-92/19695. More broadly, one can choose "PSCT” (Polymer Stabilized Cholesteric Texture in English).
- bistable smectic liquid crystals for example as detailed in patent EP2256545, which switch under the application of an alternating electric field in pulse form and which remain in the switched state until the application a new impulse.
- the liquid crystal system may be discontinuous, in several pieces (by example of type pixels).
- the glazing according to the invention can be used (also):
- the glazing according to the invention can form all or part of a partition and other window (type transom etc), a multiple glazing (by adding an additional glazing).
- the subject of the present invention is also a method of a liquid crystal variable diffusion multiple glazing unit as described above comprising the following steps in this order:
- the lamination with the first lamination interlayer material, in particular PVB involves placing the glazing in an autoclave.
- the plastic material does not require autoclaving to avoid degrading the liquid crystal, but a simple heating is sufficient. This is why EVA is preferred for the first electrical insulation material and possibly for the first interlayer plastic including thermoplastic (if one wants continuity of materials in particular).
- the Applicant has found that the optical performance of the liquid crystal glazing was not degraded by the autoclave because unexpectedly the spacers maintain the thickness of the liquid crystal layer, autoclave for example necessary to a laminate with PVB.
- the PVB also allows a mechanical reinforcement of the optimal glazing in the case of double laminating and the EVA is transformable during the lamination by the PVB.
- said electrical insulation comprises:
- Molding makes it possible to choose sizes and shapes of the electrical insulation material.
- the polymeric material of electrical insulation will indeed spread in a controlled manner. It is thus necessary to force the distribution of the material by using a mold of complementary shape to the desired shape for electrical insulation, or even for sealing, and / or mechanical protection of the wiring.
- the mold is preferably greater in height than the total height of the glazing (in other words the total thickness of the glazing).
- the EVA has a sufficient creep capacity and is preferably crosslinkable (by insertion of crosslinking agent (s)) during and / or from the passage in an oven.
- said heating can further fluidify the first intermediate material including EVA (and the second intermediate material, especially EVA) to achieve said lamination (and preferably the other lamination) preferably during the same thermal cycle, and if necessary, the first electrical insulation material comes into contact with the first intermediate material, in particular on the first covering edge.
- the mold (or another suitable element) is preferably kept around the perimeter of the glazing during the lamination, because if the plastic material, which is in particular thermoplastic, overflows fluently, it is then contained by the mold (or other suitable element).
- the first and third glass sheets may be uncontrollably (unwanted) shifted during assembly. This creates a disparity of dimensions that is problematic for the installation and can even lead to waste.
- the mold is kept on the periphery of the glazing during the lamination to eliminate this disadvantage.
- the mold can be supported on the glazing at least by an outer main face of the glazing and optionally abutting against the first wafer and the third wafer and / or the mold, in one or more pieces, belt the perimeter of the glazing.
- the mold can be supported by the two main outer faces of the glazing unit or the mold (for example with an L section) can be supported only on an edge of one of the main outer faces of the glazing and an envelope (textile, etc. ) is disposed on one edge of the other main outer face of the glazing and extends over the mold.
- the polymeric electrical insulation material is easily insertable between the mold and the edge of the first sheet.
- the same open mold (L %) can be used for different glass thicknesses, so the mold stock is easy to manage.
- a mold for example in two spaced pieces.
- a mold for example in one piece or in first and second pieces.
- the first piece and the second piece each having a free lateral end and a lateral end abutting against a lateral end of the other piece.
- the mold may be in four parts, for example each with one free end and one end abutting an end of another adjacent piece.
- the molding height can be the same or different for an edge with the power supply or an edge with a cable held or an edge without cable or power supply.
- the mold is adapted accordingly.
- the method may comprise an immobilization of the first electrical cable (before its connection, its exit from the glazing) or even a possible second electrical cable (before its connection, its exit from the glazing) preferably including an insertion of the holding material, preferably solid, in any form, in particular tongue, ball, granulated, or even in powder form - on the first cable and in the mold, monolithic or in several parts, the heating fluidifying the polymeric material of maintenance, in particular in EVA so that the maintenance material conforms to the molding surface and freezes the first electrical cable, in particular two strands, or even the second electrical cable.
- the holding material preferably solid, in any form, in particular tongue, ball, granulated, or even in powder form - on the first cable and in the mold, monolithic or in several parts
- the heating fluidifying the polymeric material of maintenance in particular in EVA so that the maintenance material conforms to the molding surface and freezes the first electrical cable, in particular two strands, or even the second electrical cable.
- the process may comprise a formation of the seal with liquid water, or even vapor, external to the sealing gasket, preferably including an insertion into the mold of the sealing material, preferably solid, in any form, in particular tongue, ball, granule, or even powder - of the first wiring input, the first electrode, the possible first current supply, or even the second wiring input, the second electrode, the second possible supply of current, the heating fluidifying the polymeric sealing material including EVA so that the holding material conforms to the molding surface and adheres to the glass, the formation of the seal preferably including immobilizing the first electrical cable.
- the mold comprising the holding material may be open or pierced with hole (s) on its wall facing the edge of the glazing to remove the wiring and / or the mold may be open laterally on at least one side to remove the first cable and preferably the lateral edges of the mold are closed, in particular by fabric or tape.
- the electrical insulation, the immobilization of the first cable and / or the formation of the seal, in particular with the mold may comprise a step of simultaneous heating and preferably from a single material, preferably EVA.
- the invention finally provides a mold for implementing the method of manufacturing the liquid crystal variable diffusion multiple glazing previously defined.
- the mold may have a non-adherent molding surface to the first polymeric material of electrical insulation, especially selected from teflon, silicone.
- the mold can have a cross section:
- the protective material will have a (symmetrical) shape of C with smooth angles.
- FIG. 1a represents a schematic cross-sectional view of a first embodiment of the variable-liquid-crystal variable-diffusion multiple glazing unit according to the invention
- FIG. 1b shows a schematic and partial side sectional view of the multiple liquid crystal variable diffusion glazing unit of FIG. 1;
- FIG. 1c is a schematic top view of the variable liquid crystal variable diffusion multiple glazing unit of FIG. 1a;
- FIG. 1d shows a partial and schematic cross-sectional view of the multiple liquid crystal variable diffusion glazing of FIG. 1a during manufacture
- FIG. 2a represents a schematic view from above of a second embodiment of the variable liquid crystal variable diffusion multiple glazing according to the invention
- FIG. 2b represents a schematic and partial side sectional view of the variable liquid crystal variable diffusion multiple glazing unit of FIG. 2a during manufacture
- FIG. 2c represents a schematic and partial side sectional view of the variable liquid crystal variable diffusion multiple glazing unit of FIG. 2a;
- FIG. 3a is a diagrammatic view from above of a third embodiment of the liquid crystal variable diffusion multiple glazing unit according to the invention.
- FIG. 3b is a schematic and partial side sectional view of the variable liquid crystal variable diffusion multiple glazing unit of FIG. 3a during manufacture
- FIG. 3c shows a schematic and partial side sectional view of the variable liquid crystal variable diffusion multiple glazing unit of FIG. 3a;
- FIG. 4a represents a schematic cross-sectional view of a fourth embodiment of the variable liquid crystal variable diffusion glazing according to the invention
- FIG. 4b is a diagrammatic and partial view from above of the liquid crystal variable diffusion multiple glazing unit of FIG. 4a,
- FIG. 5 shows a schematic top view of a fifth embodiment of the multiple glazing variable liquid crystal diffusion according to the invention.
- FIG. 1 represents a schematic cross-sectional view of a first embodiment of the liquid crystal variable diffusion multiple glazing according to the invention
- first sheet of glass 1 rectangular - defining four edges -, with a so-called first internal face 1 1 face and another so-called first outer face face 12 and a first said first portion 1 to 1 d,
- a second glass sheet, rectangular - defining four edges - with a so-called second inner face 1 'face and another so-called second outer face 12' and a said second wafer portion has the d.
- the first sheet of glass 1 protrudes from one edge of the second slice 1 'a, by a first edge 13 of the first inner face 1 1, said first edge exceeding 13.
- it is a first edge lateral (or longitudinal variant).
- the second glass sheet V protrudes from a edge edge of the first glass sheet 1b, by an edge of the second internal face said other edge exceeding 13 '.
- it is the second side edge (or longitudinal variant).
- the first edge protruding 13 and the other protruding edge are obtained by shifting the first and second slices 1a, the a.
- an electrically conductive layer 3, 3 ' On each of the first and second sheets of float glass 1 and 1 'is disposed on the inner faces 1 1, 1 1' an electrically conductive layer 3, 3 'with a thickness of about 20 to 400 nm, made of indium and tin (ITO) for example.
- ITO layers have a surface electrical resistance of between 5 ⁇ / and 300 ⁇ /.
- the liquid crystal layer 4 which may have a thickness of about 15 to 60 ⁇ , is located between the electrode layers 3 and 4.
- the liquid crystal layer 4 contains spherical spacers 5.
- the spacers 5 consist of a transparent hard polymer.
- the product of Sekisui Chemical Co., Ltd. known as "Micropearl” SP, has been found to be suitable as a spacer, polymethylmethacrylate (PMMA).
- liquid crystal layer it is also possible to use known compounds, for example the compounds described in document US Pat. No. 5,691,795.
- this product is mixed in a 10: 2 ratio with a chiral substance, for example 4-cyano-4 '- (2-methyl) butylbiphenyl, and this mixture is mixed in the ratio : 0.3 with a monomer, for example 4,4'-bisacryloylbiphenyl, and with a UV initiator, for example benzoin methyl ether.
- the mixture thus prepared is applied to one of the coated glass sheets. After curing the liquid crystal layer by irradiation with UV light, a polymer network is formed in which the liquid crystals are incorporated.
- the liquid crystal layer does not contain a stabilizing polymer but consists only of the mass of liquid crystals and spacers.
- the mass of liquid crystals is therefore applied as it is without monomer additive, at a thickness of 3 to 20 ⁇ on one of the glass sheets 1, V.
- Compounds for liquid crystal layers of this type are described for example in US 3,963,324.
- PDLCs such as 4 - ((4-)
- Ethyl-2,6-difluorophenyl ethinyl) -4'-propylbiphenyl and 2-fluorine-4,4'-bis (trans-4-propylcyclohexyl) biphenyl, for example sold by Merck under the reference MDA-00- 3506.
- the liquid crystal layer is sealed by a sealing adhesive seal 6 which serves at the same time to connect the glass sheets 1, 1 'provided with the electrodes 3, 3' firmly and permanently.
- the sealing adhesive material which seals the separate glass sheets 1 and 1 'on their edges contains an epoxy resin.
- this glazing 100 comprises first and second power supply zones:
- bus bar a flexible copper foil fixed on the first electrode, along the first edge exceeding 13,
- a second electroconductive strip 31 ' in the form of a flexible copper foil fixed on the second electrode, along the other protruding edge.
- the glazing 100 then comprises an electrical wiring with two cables 9, 9 'and thus two wiring inputs: a first wiring input 90 which is a core without sheath (s) of a first cable 9 welded to the first power supply 31 and a second wiring input 90 'which is the core without sheath (s) of a second cable 9' soldered to the second power supply 31 '.
- the first wiring input 90 is isolated by a polymeric electrical insulation material 61, here chosen in EVA.
- the second wiring input 90 ' is insulated by a polymeric electrical insulation material 61', here chosen in EVA.
- a third sheet of glass 8 rectangular, of thickness for example between 2 mm and 4 mm (including these values) is laminated by the second outer face 12 'with the second glass sheet 1' by a first lamination interlayer 7 into a first transparent polymeric interlayer material, here polyvinyl butyral of 0.38 m.
- the third glass sheet 7 and the first laminating interlayer 8 protrude from the second glass sheet 1 ', by an edge of its inner face, covering the first electrical insulation material 61, said first covering edge 83.
- a first peripheral groove 10a is thus formed between the first edge protruding 13 and the first covering edge 83.
- a fourth sheet of rectangular glass 8 ' is laminated by the first outer face 12 with the first glass sheet 1 by a second spacer of laminating 7 'in a transparent polymeric material, here polyvinyl butyral of 0.38 m.
- the fourth glass sheet 7 'and the second laminating interlayer 8' protrude from the first glass sheet 1, by an edge of its inner face, covering the second electrical insulation material, said other covering edge 83 'to the opposite of the first covering edge.
- a second peripheral groove 10b is thus formed between the other edge protruding 13 'and the other covering edge 83'.
- First and second cables 9, 9 ' are selected, for example, webs 90, 90' of section equal to 0.6 mm 2 , and of total diameter with the inner sheath 91, 91 'of 2 mm.
- the total diameter with the outer sheath 92, 92 ' is 5.5 mm.
- the cables are connected to the sector 93, 93 'at the outlet of the glazing unit 100.
- the first wiring input 90 (respectively of the second wiring input 90) is electrically isolated before the lamination.
- the thermoplastic polymer material EVA is preferably crosslinkable 610 by agents such as organic peroxide, this in the form of bands - or variations of beads - in the first groove 10a (respectively the second groove 10b).
- the width of the bands depends on the thickness of the glasses used. For example, 0.4 mm thick EVA strips are used to cover the first input of the stripped cable 90 (respectively the second input 90 ').
- the mold 1 10, of cross section (substantially) C, is:
- the mold 1 10 has a surface (internal) of non-adhesive molding with EVA, for example Teflon.
- the mold 1 10 is open laterally on one side to remove the first cable 9.
- the lateral edges of the mold are closed or closed in particular by tissue or tape (not visible).
- the mold 1 10 alternatively has a pierced side wall for the output of the first cable.
- the EVA strips (just) are placed before positioning the first laminating interlayer 7 and the third glass sheet 8.
- the glazing unit and mold (s) are placed in a simple vacuum-tight bag. It is put under primary vacuum, in order to degas the EVA (removal of bubbles ...) and heated above 100 ° C to fluidify the EVA polymeric material so that the EVA material marries the molding surface and to start the process. crosslinking of EVA.
- the liquid water sealing means of the first and second wiring inlets 90, 90 ' are formed at the same time.
- the grooves 10a and 10b are not filled by the EVA outside these zones.
- the top views of all the examples do not show the third glass sheet 8 and the first laminating interlayer 7.
- the EVA polymeric material 61 fills the remaining space in the first peripheral groove 10a between the molding surface and the edge 1 'a and comes into contact with the PVB 7.
- the EVA polymer material 61' fills the remaining space in the second peripheral groove 10b between the molding surface and the edge 1a and comes into contact with the PVB 7 '.
- the EVA strips are removed, the film 7 (respectively the film 7 ') then chosen in EVA is then overflown to isolate the first cable entry (respectively the second cable entry).
- the double lamination is carried out and then the EVA strips are inserted and the mold is placed before suitable heating.
- FIG. 2a is a diagrammatic view from above of a second embodiment of liquid crystal variable diffusion multiple glazing 200 according to the invention.
- the glazing 200 differs from the glazing 100 firstly by forming a seal with liquid water in EVA surrounding the glazing, sealing with liquid water:
- the seal On the first longitudinal edge as on the second longitudinal edge, the seal may be spaced apart from the first and second slices 1, 1 'possibly leaving the first and second protruding electrodes. Also, the seal protects the entire outer surface of electrodes from corrosion.
- the wiring 9 comprises a single bi-stranded cable 90, 90 'along the first longitudinal edge of the glazing 200.
- the EVA immobilizes the two inner sheaths 91, 91'.
- the electric cable is fixed in a determined unidirectional linear position at the outlet of the glazing. The cable leaves the glazing, in a single zone before connection to the sector 93.
- Molded EVA 61 has a smooth outer surface.
- IP protection index
- This coefficient is defined for example in the standards DIN40050, IEC 529, BS 5490.
- This glazing 200 passes the standard IPX7, that is to say that the glazing was operated in total immersion in water (test described by IEC 60335-1: 2002). It is a temporary immersion between 0.15 m and 1 m. More specifically, the test is carried out by completely immersing the glazing in the water in the service position as indicated by the manufacturer, so that the following conditions are observed:
- the glazing is at a depth of 1 m in a horizontal position and is electrically powered
- the temperature of the water must not differ from that of the glazing by more than 5 K.
- the cable entries 90, 90 'embedded also have a better holding.
- the pull-out resistance of the cable can be validated by the following method.
- the cable is subjected to a traction of 100 N during 1 s without jolting in the most unfavorable direction.
- the test is performed 25 times.
- the cable is subjected to a torque of 0.35 Nm applied as close as possible to the entrance of the glazing for 1 min.
- the cable must not be damaged, that is to say cut by the torsion.
- the pulling force is applied again and there must be no longitudinal movement of the cable more than 2 mm.
- FIG. 2b shows a schematic and partial side sectional view of the variable liquid crystal variable diffusion multiple glazing unit of FIG. 2a during manufacture.
- the mold 1 10 ' is further pierced with hole (s) 1 1 1 on its wall facing the edge of the glazing to remove the cable.
- FIG. 3a is a diagrammatic view from above of a third embodiment of liquid crystal variable diffusion multiple glazing 300.
- the glazing 300 differs from the glazing 200 in that the edges 8c, 8'c of the third and fourth slices, associated with the first longitudinal edge, protrude from the edges 1c, 1 'c of the first and second slices form a longitudinal peripheral groove 10c housing the bi-stranded cable 9 (see also FIG. 3c).
- the manufacturing method presented differs from the second embodiment in that the mold 120 of section L is open, therefore only on one edge of the main external face of the third sheet 8.
- An envelope 130 eg adhesive tape or adhesive tape
- FIG. 4a represents a schematic cross-sectional view of a fourth embodiment of the multiple crystal 400 variable diffusion glazing according to the invention.
- the glazing 400 differs from the glazing 100 in that the first edge exceeding 13 is obtained by partial cutting of the second slice 1 'a and the other edge exceeding 13' is obtained by partial cutting of the first slice 1 a.
- the first and second peripheral grooves 10a, 10b are fully filled with EVA 61, 61 '.
- FIG. 5 represents a schematic view from above of a fifth mode of realization of the multiple crystal 500 variable diffusion liquid crystal according to the invention.
- the glazing 500 differs from the glazing 100 in that the first edge exceeding 13 is obtained by partial cutting of the second slice 1 'a and the other edge exceeding 13' is obtained by partial cutting of the first slice 1 a.
- the first and second peripheral grooves 10a, 10b are fully filled with EVA 61, 61 '.
- the wiring is a single bi-strand cable 9 immobilized by EVA 61 ", 61" 'against the edge of the first longitudinal edge and a second side edge 1c, 1' c.
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Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020137011547A KR20130117782A (ko) | 2010-10-04 | 2011-10-04 | 액정에 의해 가변적으로 산란되는 다층 창유리 및 그의 제조 방법 |
EP11779792.8A EP2625563B1 (fr) | 2010-10-04 | 2011-10-04 | Vitrage multiple à diffusion variable par cristaux liquides, son procédé de fabrication |
JP2013532248A JP2014500972A (ja) | 2010-10-04 | 2011-10-04 | 液晶による可変の拡散を有する複層グレージングおよびその製造方法 |
DK11779792.8T DK2625563T3 (en) | 2010-10-04 | 2011-10-04 | MULTI-Layer GLASS WITH VARIABLE DISTRIBUTION THROUGH LIQUID CRYSTALS AND PROCEDURE FOR PREPARING SAME |
US13/877,629 US9400411B2 (en) | 2010-10-04 | 2011-10-04 | Multiple glazing having variable diffusion by liquid crystals, and method for manufacturing same |
CN2011800579235A CN103238102A (zh) | 2010-10-04 | 2011-10-04 | 具有液晶实现的可变漫射性的复层玻璃制品及其制造方法 |
ES11779792.8T ES2616009T3 (es) | 2010-10-04 | 2011-10-04 | Acristalamiento múltiple con difusión variable por cristales líquidos, su procedimiento de fabricación |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR1058004 | 2010-10-04 | ||
FR1058004A FR2965641B1 (fr) | 2010-10-04 | 2010-10-04 | Vitrage multiple a diffusion variable par cristaux liquides, son procede de fabrication |
Publications (1)
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WO2012045973A1 true WO2012045973A1 (fr) | 2012-04-12 |
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PCT/FR2011/052311 WO2012045973A1 (fr) | 2010-10-04 | 2011-10-04 | Vitrage multiple a diffusion variable par cristaux liquides, son procède de fabrication |
Country Status (10)
Country | Link |
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US (1) | US9400411B2 (fr) |
EP (1) | EP2625563B1 (fr) |
JP (1) | JP2014500972A (fr) |
KR (1) | KR20130117782A (fr) |
CN (1) | CN103238102A (fr) |
DK (1) | DK2625563T3 (fr) |
ES (1) | ES2616009T3 (fr) |
FR (1) | FR2965641B1 (fr) |
PL (1) | PL2625563T3 (fr) |
WO (1) | WO2012045973A1 (fr) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2013098522A1 (fr) * | 2011-12-29 | 2013-07-04 | Saint-Gobain Glass France | Vitrage multiple a diffusion variable par cristaux liquides |
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- 2011-10-04 EP EP11779792.8A patent/EP2625563B1/fr active Active
- 2011-10-04 PL PL11779792T patent/PL2625563T3/pl unknown
- 2011-10-04 KR KR1020137011547A patent/KR20130117782A/ko not_active Application Discontinuation
- 2011-10-04 US US13/877,629 patent/US9400411B2/en active Active
- 2011-10-04 JP JP2013532248A patent/JP2014500972A/ja active Pending
- 2011-10-04 DK DK11779792.8T patent/DK2625563T3/en active
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
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US9791759B2 (en) | 2010-09-03 | 2017-10-17 | Cardinal Ig Company | Multiple glazing with variable scattering by liquid crystals and its method of manufacture |
US9891454B2 (en) | 2011-12-29 | 2018-02-13 | Cardinal Ig Company | Multiple glazing with variable diffusion by liquid crystals and method of manufacture thereof |
US9547206B2 (en) | 2011-12-29 | 2017-01-17 | Cardinal Ig Company | Multiple glazing with variable diffusion by liquid crystals |
FR2985328A1 (fr) * | 2011-12-29 | 2013-07-05 | Saint Gobain | Vitrage multiple a diffusion variable par cristaux liquides |
WO2013098522A1 (fr) * | 2011-12-29 | 2013-07-04 | Saint-Gobain Glass France | Vitrage multiple a diffusion variable par cristaux liquides |
US20140078410A1 (en) * | 2012-09-14 | 2014-03-20 | Scienstry, Inc. | Switchable Projection Window |
US9690174B2 (en) * | 2012-09-14 | 2017-06-27 | Scienstry, Inc. | Switchable projection window |
DE202013006516U1 (de) | 2012-10-31 | 2013-11-07 | Saint-Gobain Glass France | System mit variabler Lichtstreuung, das eine PDLC-Schicht enthält |
WO2014068257A1 (fr) | 2012-10-31 | 2014-05-08 | Saint-Gobain Glass France | Vitrage comprenant un systeme a diffusion lumineuse variable et une paire d'elements absorbants |
US10539822B2 (en) | 2012-10-31 | 2020-01-21 | Cardinal Ig Company | Glazing unit comprising a variable light scattering system and a pair of absorbing elements |
WO2014096717A1 (fr) | 2012-12-21 | 2014-06-26 | Saint-Gobain Glass France | Vitrage comprenant un systeme a diffusion lumineuse variable utilise comme ecran |
WO2019150038A1 (fr) | 2018-01-31 | 2019-08-08 | Saint-Gobain Glass France | Vitrage feuillete a dispositif electrocommandable et fabrication. |
WO2019150037A1 (fr) | 2018-01-31 | 2019-08-08 | Saint-Gobain Glass France | Vitrage feuillete a dispositif electrocommandable et fabrication. |
US11407204B2 (en) | 2018-01-31 | 2022-08-09 | Saint-Gobain Glass France | Laminated glazing with an electrically controllable device and manufacture |
Also Published As
Publication number | Publication date |
---|---|
EP2625563A1 (fr) | 2013-08-14 |
KR20130117782A (ko) | 2013-10-28 |
ES2616009T3 (es) | 2017-06-09 |
US20130265511A1 (en) | 2013-10-10 |
DK2625563T3 (en) | 2017-03-27 |
FR2965641B1 (fr) | 2013-10-11 |
PL2625563T3 (pl) | 2017-06-30 |
EP2625563B1 (fr) | 2016-12-28 |
FR2965641A1 (fr) | 2012-04-06 |
CN103238102A (zh) | 2013-08-07 |
US9400411B2 (en) | 2016-07-26 |
JP2014500972A (ja) | 2014-01-16 |
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