EP4580874A1 - Vitre composite avec une couche réfléchissante appliquée dans des régions - Google Patents

Vitre composite avec une couche réfléchissante appliquée dans des régions

Info

Publication number
EP4580874A1
EP4580874A1 EP23768786.8A EP23768786A EP4580874A1 EP 4580874 A1 EP4580874 A1 EP 4580874A1 EP 23768786 A EP23768786 A EP 23768786A EP 4580874 A1 EP4580874 A1 EP 4580874A1
Authority
EP
European Patent Office
Prior art keywords
layer
pane
composite
glass
glass pane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23768786.8A
Other languages
German (de)
English (en)
Inventor
Jan Hagen
Michael Müller
Andreas GOMER
Oliver GIER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Sekurit France SAS
Original Assignee
Saint Gobain Sekurit France SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Sekurit France SAS filed Critical Saint Gobain Sekurit France SAS
Publication of EP4580874A1 publication Critical patent/EP4580874A1/fr
Pending legal-status Critical Current

Links

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
    • B32B17/10009—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
    • 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
    • B32B1/00—Layered products having a non-planar shape
    • 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
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B32B17/10201—Dielectric coatings
    • B32B17/10211—Doped dielectric layer, electrically conductive, e.g. SnO2:F
    • 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
    • B32B17/10247—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons
    • B32B17/10256—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques
    • B32B17/10266—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques on glass pane
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B32B17/10339—Specific parts of the laminated safety glass or glazing being colored or tinted
    • B32B17/10348—Specific parts of the laminated safety glass or glazing being colored or tinted comprising an obscuration band
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B32B17/10651—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 comprising colorants, e.g. dyes or pigments
    • B32B17/1066—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 comprising colorants, e.g. dyes or pigments imparting a tint in certain regions only, i.e. shade band
    • 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
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10899—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin
    • B32B17/10935—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin as a preformed layer, e.g. formed by extrusion
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
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    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/14—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
    • B32B5/142—Variation across the area of the layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/23—Head-up displays [HUD]
    • B60K35/231—Head-up displays [HUD] characterised by their arrangement or structure for integration into vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/50—Instruments characterised by their means of attachment to or integration in the vehicle
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/02—Surface treatment of glass, not in the form of fibres or filaments, by coating with glass
    • C03C17/04—Surface treatment of glass, not in the form of fibres or filaments, by coating with glass by fritting glass powder
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/3411—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
    • C03C17/3429—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating
    • C03C17/3441—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating comprising carbon, a carbide or oxycarbide
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/06—Joining glass to glass by processes other than fusing
    • C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
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    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/77—Instrument locations other than the dashboard
    • B60K2360/785—Instrument locations other than the dashboard on or in relation to the windshield or windows
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/20—Materials for coating a single layer on glass
    • C03C2217/21—Oxides
    • C03C2217/213—SiO2
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/20—Materials for coating a single layer on glass
    • C03C2217/28—Other inorganic materials
    • C03C2217/282—Carbides, silicides
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/70—Properties of coatings
    • C03C2217/73—Anti-reflective coatings with specific characteristics
    • C03C2217/734—Anti-reflective coatings with specific characteristics comprising an alternation of high and low refractive indexes
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2218/00—Methods for coating glass
    • C03C2218/10—Deposition methods
    • C03C2218/15—Deposition methods from the vapour phase
    • C03C2218/154—Deposition methods from the vapour phase by sputtering
    • C03C2218/156—Deposition methods from the vapour phase by sputtering by magnetron sputtering
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility

Definitions

  • the invention relates to a composite pane with a reflective layer applied in certain areas, a method for its production and its use, and a projection arrangement.
  • Head-up displays Modern automobiles are increasingly being equipped with so-called head-up displays (HllDs).
  • HllDs head-up displays
  • a projector typically in the dashboard area
  • images are projected onto the windshield, reflected there and perceived by the driver as a virtual image behind the windshield.
  • Important information can be projected into the driver's field of vision, such as the current driving speed, navigation or warning information, which the driver can perceive without having to take his eyes off the road.
  • Head-up displays can make a significant contribution to increasing road safety.
  • head-up displays often have the problem that the area of the windshield that is intended to reflect the light projected by the projector must have a high level of transparency, usually at least 70%.
  • the reflected light from the projector is therefore superimposed by light from the external environment, which, depending on the lighting conditions, can lead to a reduction in the contrast of the virtual image and thus to poorer visual perceptibility for the driver.
  • Sufficient visual perceptibility of particularly safety-relevant information such as lane guidance, speed display or engine speed should be guaranteed in all weather and lighting conditions. It would be desirable to have a projection arrangement based on head-up display technology in which no unwanted secondary images occur and whose arrangement is relatively easy to accomplish while being easy to see with sufficient brightness and contrast of the displayed image information.
  • the contrast increase can be achieved, for example, by making the background of the reflection area largely or completely opaque.
  • such solutions require that a reflection layer is only applied to a locally limited area of the windshield.
  • the application of metallic coatings to glass panes is usually carried out using sputtering, in particular magnetron sputtering.
  • sputtering atoms released from a target by bombardment with ions.
  • the glass pane is coated with the atoms released from the target in an evacuated chamber. The atoms move through the chamber towards the glass pane, guided by electric fields. So they move from the cathode, on which the target is arranged, towards the anode. Due to the arrangement of the glass pane between the cathode and anode, layers form on the glass pane.
  • Magnetron sputtering is also suitable for coating glass panes because, unlike many other coating technologies, it can also be used when the glass pane is curved, as is the case, for example, with panes intended for the automotive sector.
  • a disadvantage of sputtering is that without special precautions, only certain surface areas cannot be selectively coated, but only the entire surface. The selective coating of only certain surface areas can be achieved, for example, by complex masking of the areas that should not be coated. However, such masking can only be integrated into the industrial series production of coated glass panes with considerable effort and is associated with relatively high costs.
  • Cold gas spraying is also suitable as a method for coating glass panes and is a coating method well known to those skilled in the art, in which a powder is applied to a carrier at very high speed.
  • Methods for coating using cold gas spraying are known, for example, from WO2010/003396 A1, EP3845685 A1 and EP2902530 A1.
  • a composite pane with a holographic-optical element applied to the interior surface of the inner pane is known as a light-directing device for directing light from a projector, the light-directing device being arranged in overlap with a masking strip in order to enable a high contrast.
  • the present invention is based on the object of providing an improved composite pane with a reflective layer applied in certain areas.
  • the composite pane should be easy to manufacture.
  • the composite pane according to the invention comprises an outer pane, a thermoplastic intermediate layer, at least one masking layer, an inner pane, an adhesive layer and a glass pane.
  • the thermoplastic intermediate layer is arranged between the outer pane and the inner pane and the adhesive layer is arranged between the inner pane and the glass pane.
  • the at least one masking layer is arranged in an area of the composite pane and the glass pane is arranged in an area of the composite pane which, when viewed vertically through the composite pane, lies completely in the area in which the at least one masking layer is arranged.
  • the composite pane is intended to separate the interior of a vehicle window opening from the outside environment.
  • the inner pane refers to the pane of the composite pane facing the vehicle interior.
  • the outer pane refers to the pane facing the external environment.
  • the composite pane has in particular an upper edge and a lower edge, as well as two side edges running between them.
  • the top edge refers to the edge that is intended to point upwards in the installed position.
  • the lower edge refers to the edge that is intended to point downwards in the installed position.
  • the top edge is often referred to as the roof edge and the bottom edge as the engine edge.
  • the outer pane, the inner pane and the glass pane each have an outside surface and an interior surface and a circumferential side edge running between them.
  • the outside surface refers to the main surface which is intended to face the external environment in the installed position to be.
  • the interior-side surface refers to the main surface which is intended to face the interior in the installed position.
  • the interior surface of the outer pane and the outside surface of the inner pane face each other and are connected to one another by the thermoplastic intermediate layer.
  • the outside surface of the outer pane is referred to as side I.
  • the interior surface of the outer pane is referred to as side II.
  • the outside surface of the inner pane is referred to as side III.
  • the interior surface of the inner pane is referred to as side IV.
  • the outside surface of the glass pane is called side V.
  • the interior surface of the glass pane is referred to as side VI.
  • the interior surface of the outer pane and the outside surface of the inner pane face each other.
  • the inner pane is arranged between the outer pane and the glass pane, with the interior surface of the inner pane and the outside surface of the glass pane facing each other.
  • the glass pane is arranged between the outer pane and the inner pane, with the interior surface of the glass pane and the outside surface of the inner pane facing each other.
  • the glass pane is very thin and has a thickness of 20 pm (micrometers) to 500 pm.
  • the glass pane is therefore a pane made of ultra-thin glass.
  • Such a pane made of ultra-thin glass is flexible and can be advantageously adapted to the bend of a pane.
  • At least one reflection layer for reflecting light is arranged on the outside surface of the glass pane and/or on the interior surface of the glass pane.
  • a single reflection layer can thus be provided, which is arranged on the outside surface of the glass pane or on the interior surface of the glass pane.
  • two reflection layers can be provided, which are arranged on the outside surface of the glass pane and on the inside surface of the glass pane.
  • the outside surface and/or the inside surface of the glass pane is advantageously coated with the reflection layer, ie the reflection layer is as a coating on the arranged on the outside surface and / or the inside surface of the glass pane.
  • the at least one reflection layer has a smaller distance from the vehicle interior than at least one masking layer, so that the imaging unit of a projection arrangement, which is arranged in the vehicle interior, has a direct view of the reflection layer and the reflection layer is emitted by the imaging unit can reflect light.
  • an additional masking layer is also possible for an additional masking layer to be arranged closer to the vehicle interior than the reflection layer. In order to ensure a direct view of the imaging unit onto the reflection layer in this case, this additional masking layer has one or more openings so that the light from the imaging unit can be reflected by the reflection layer and seen by an observer in the vehicle interior.
  • the reflection layer applied to the glass pane is also arranged in an area which is vertical View through the composite pane lies completely in the area in which the masking layer is arranged.
  • the reflection layer is thus arranged in a vertical view through the composite pane or in an orthogonal projection through the composite pane in coverage or overlap with the masking layer.
  • the reflection layer therefore does not have a section that does not overlap the masking layer, i.e. the reflection layer is only formed where it is located in front of the masking layer in view of the inside of the composite pane. This ensures high contrast and brightness and thus good visibility of the virtual image reflected by the reflection layer.
  • the glass pane has a thickness of 50 pm to 300 pm, preferably 50 pm to 100 pm, for example 70 pm.
  • the reflection layer is a reflection layer for reflecting light.
  • the reflection layer is preferably opaque or partially translucent, which in the sense of the invention means that it is a medium layer Transmission (according to ISO 9050:2003) in the visible spectral range of preferably at most 80%, particularly preferably at most 50% and in particular less than 10%.
  • the reflection layer preferably reflects at least 10%, particularly preferably at least 50%, very particularly preferably at least 80% and in particular at least 90% of the light incident on the reflection layer.
  • the reflection layer preferably reflects p-polarized and s-polarized light in equal proportions, but it can also reflect p-polarized light and s-polarized light to different degrees. In one embodiment, the light reflected by the reflection layer predominantly has p-polarized light, so that the virtual image can be easily recognized even when using s-polarizing sunglasses.
  • the light reflected by the reflection layer is preferably visible light, i.e. light in a wavelength range of approximately 380 nm to 780 nm.
  • the reflection layer preferably has a high and uniform degree of reflection (over different angles of incidence) compared to p-polarized and/or s-polarized radiation so that a high-intensity and color-neutral image representation is guaranteed.
  • the indication of the direction of polarization refers to the plane of incidence of the radiation on the composite pane.
  • P-polarized radiation refers to radiation whose electric field oscillates in the plane of incidence.
  • S-polarized radiation refers to radiation whose electric field oscillates perpendicular to the plane of incidence.
  • the plane of incidence is spanned by the incidence vector and the surface normal of the composite pane in the geometric center of the irradiated area.
  • the polarization in particular the proportion of p- and s-polarized radiation, is determined at a point in the area irradiated by the image display device, preferably in the geometric center of the irradiated area. Since composite panes can be curved (for example if they are designed as a windshield), which has an impact on the plane of incidence of the image display device radiation, slightly different polarization components can occur in the remaining areas, which is unavoidable for physical reasons.
  • the reflection layer is designed so that it is suitable for reflecting light, preferably visible light.
  • the layer thickness and refractive index of the reflection layer are selected so that constructive interference occurs at the reflection layer when the incident light is reflected.
  • the light generated by the imaging unit of a projection arrangement and directed onto the reflection layer generally has not just a single wavelength, but a wavelength range with many different wavelengths.
  • the incident light will not only arrive at a single angle of incidence, but rather at a range of many different angles of incidence. It goes without saying that the broadest possible reflection at different angles of incidence is advantageous, although in practice a satisfactory compromise can be found for this.
  • Those skilled in the art are familiar with reflection from thin layers and suitable conditions can be determined using simple experiments.
  • the reflection layer is a dielectric layer.
  • the reflection layer is a silicon-based layer.
  • the reflection layer is a carbide layer. With these reflection layers, broadband reflections with high reflectivity based on constructive interference can be achieved.
  • the reflection layer is not a metallic layer, i.e. not a layer that contains or consists of metal.
  • the reflection layer is not a holographic-optical element, i.e. light is reflected by the reflection layer and not diffracted. Accordingly, the reflection layer formed in the form of a dielectric layer according to the first alternative of the invention is not a polymer layer that is part of a holographic-optical element.
  • the reflection layer is a dielectric layer and contains or consists of one or more materials that are electrically non-conductive or weakly conductive, where charge carriers present are not freely movable (insulators).
  • the dielectric layer can be a single-layer layer or a multi-layer layer, in particular a two-layer layer.
  • the dielectric layer is a two-layer layer (bilayer), the two-layer layer consisting of a first layer and a second layer, the first layer containing or consisting of an optically high-refractive material (with a high refractive index).
  • the second layer contains or consists of an optically low-refractive material (with a low refractive index).
  • high-refractive index and “low-refractive index” are common in the industry. To avoid absolute information, the term “high refractive index” can also be understood as “higher refractive index” and the term “low refractive index” can also be understood as “lower refractive index”, whereby the relative information refers to the refractive indices of the two layers.
  • the particular advantage of the two-layer reflection layer is the possibility of simpler production using a PVD process, in particular sputtering, since experience has shown that single-layer reflection layers with the desired layer thicknesses and refractive indices are more difficult to produce.
  • the two layers of the two-layer reflection layer preferably have different thicknesses and/or different refractive indices.
  • the first layer with an optically high-refractive material has a refractive index in the range from 1.9 to 2.5 and/or the second layer with an optically low-refractive material has a refractive index in the range from 1.3 to 1.6 .
  • the first layer with an optically high-refractive material has a thickness in the range from 50 to 100 nm, preferably 70 to 90 nm, and / or the second layer with an optically low-refractive material has a thickness in the range from 100 to 200 nm, preferably 110 to 150 nm.
  • refractive indices are generally specified based on a wavelength of 550 nm. Methods for determining refractive indices are known to those skilled in the art. The refractive indices specified within the scope of the invention can be determined, for example, using ellipsometry, whereby commercially available ellipsometers can be used.
  • the first layer with an optically high-refractive material is located between the glass pane and the second layer with an optically low-refractive material, i.e. the first layer with an optically high-refractive material is arranged closer to the glass pane than the second layer with an optically low-refractive material.
  • the coated glass pane is preferably arranged on the interior surface (side IV) of the inner pane, whereby the Reflective layer is located on the interior surface (side VI) of the glass pane.
  • the reflection layer is a silicon-based layer, i.e. the reflection layer contains or consists of silicon, with silicon being contained in the form of undoped silicon, doped silicon or a silicon compound.
  • the silicon-based layer can be a single-layer layer or a multi-layer layer, in particular a two-layer layer.
  • the silicon-based layer is a single-layer layer, i.e. consists of a single layer made of the same material.
  • the silicon-based layer advantageously contains or consists of undoped silicon.
  • the silicon-based layer contains doped silicon, which is doped with one or more dopants, the dopant preferably being selected from boron (B), aluminum (Al) and zirconium (Zr), or consisting of it.
  • B boron
  • Al aluminum
  • Zr zirconium
  • the silicon-based layer is a two-layer reflection layer (bilayer), the two-layer reflection layer consisting of a first layer and a second layer, the first layer being silicon doped with one or more dopants, the dopant being chosen in particular is made of boron (B), Aluminum (Al) and zirconium (Zr), contains or consists of, and the second layer contains or consists of a silicon compound.
  • B boron
  • Al Aluminum
  • Zr zirconium
  • the second layer contains or consists of a silicon compound.
  • the two-layer reflection layer consists of Si(B)/SiAIN x , Si(ZrAI)/SiAIO x , or Si(B)/SiAIO x .
  • the dopant is indicated in brackets.
  • the first layer is located between the glass pane and the second layer, ie the first layer is arranged closer to the glass pane than the second layer.
  • the silicon-based layer advantageously has a thickness in the range from 10 to 100 nm, preferably 20 to 50 nm.
  • a one- or two-layer reflection layer is arranged on the outside surface (side V) and the inside surface (side VI) of the glass pane. It is conceivable to apply a further layer of SiÜ2 to the reflection layer on the interior surface (side VI) of the glass pane in order to further increase the reflectivity.
  • the layer of SiO2 preferably has a thickness in the range of 50 to 150 nm, more preferably in the range of 70 to 130 nm.
  • the reflection layer is a carbide layer, i.e. the reflection layer contains or consists of a carbide compound.
  • the carbide layer is a single-layer layer, i.e. consists of a single layer with the same substance.
  • the carbide layer is advantageously a single-layer layer and has a layer thickness in the range from 10 to 100 nm, preferably 30 to 80 nm.
  • the carbide layer advantageously contains TiC or ZrC, or consists of it. As the inventors were able to show, high reflectivity can be achieved across a broad band with such a reflection layer.
  • layer thicknesses or thicknesses refers to the geometric thickness of a layer.
  • the methods for determining layer thicknesses are known to those skilled in the art.
  • the layer thicknesses specified in the context of the invention can be determined, for example, by means of ellipsometry, whereby commercially available ellipsometers can be used.
  • At least one masking layer is arranged in a region of the composite pane.
  • this is Masking layer is arranged in an edge region of the composite pane, which typically adjoins the pane edge of the pane.
  • the masking layer is preferably arranged at least along the lower edge and adjacent to the lower edge. This results in a top view of the composite pane as a rectangular opaque strip that is arranged along the lower edge.
  • the masking layer is designed in a frame-shaped circumferential manner.
  • the frame-shaped masking layer is preferably provided with a widening, i.e. has a larger width (dimension perpendicular to the extension) than in other sections.
  • the masking layer can be suitably adapted to the dimensions of the glass pane with the reflective layer applied thereon.
  • the masking layer is designed to be frame-shaped all around and has a greater width, in particular in a section that overlaps the glass pane, than in sections different therefrom.
  • the glass pane with the reflection layer applied thereon preferably has essentially the shape of a rectangle, which extends in an area near the lower edge between the two side edges.
  • the edges of the glass pane do not extend to the side edges and the lower edge, but are spaced from them, for example, by 2 cm to 5 cm.
  • the masking layer in the sense of the invention is a layer that prevents visibility through the composite pane. There is a transmission of at most 5%, preferably at most 2%, particularly preferably at most 1%, in particular at most 0.1%, of the light of the visible spectrum through the masking layer.
  • the masking layer is therefore an opaque masking layer, preferably a black masking layer.
  • the masking layer is preferably a coating made up of one or more layers. Alternatively, the masking layer can also be a colored area of the thermoplastic intermediate layer.
  • the masking layer consists of a single layer. This has the advantage of a particularly simple and cost-effective production of the composite pane, since only a single layer has to be formed for the masking layer.
  • the masking layer is in particular an opaque cover print made of a dark, preferably black, enamel.
  • the at least one masking layer is advantageously designed as an opaque covering print arranged on the interior surface (side II) of the outer pane, in particular made of a dark, preferably black, enamel.
  • the masking layer is designed as an opaque covering print arranged on the outside surface (side III) of the inner pane, in particular made of a dark, preferably black, enamel.
  • a first opaque covering print can be arranged on the interior surface (side II) of the outer pane and a second opaque covering print on the outside surface (side III) of the inner pane.
  • the glass pane coated with the at least one reflective layer is arranged on the outside surface (side III) of the inner pane, there is a masking layer between the outer pane and the coated glass pane. If an additional masking layer (e.g. opaque cover print) is arranged closer to the inner pane, this masking layer is provided with one or more openings in order to ensure a clear view of the reflection layer from the interior.
  • an additional masking layer e.g. opaque cover print
  • the masking layer is formed as an opaque colored area of the thermoplastic intermediate layer.
  • the thermoplastic intermediate layer is formed in one piece and is colored opaque in one area.
  • a masking layer designed as an opaque colored area of the thermoplastic intermediate layer can also be realized by using a thermoplastic intermediate layer composed of an opaque thermoplastic film and a transparent thermoplastic film.
  • the opaque thermoplastic film and transparent thermoplastic film are preferably arranged offset from one another so that both films do not overlap when viewed through the composite pane.
  • the transparent and opaque films are made of the same plastic or preferably contain the same plastic.
  • the materials on the basis of which the opaque film and the transparent film can be formed are those that are also described for the thermoplastic intermediate layer.
  • the opaque film is preferably a colored film, which can have different colors, in particular black.
  • the composite pane according to the invention can in particular have an opaque covering pressure arranged on the interior surface of the inner pane, in particular at least in the area in which the glass pane is arranged.
  • Such a covering pressure on the interior surface of the inner pane improves the adhesion properties of the surface compared to an adhesive layer.
  • the opaque cover print is preferably frame-shaped.
  • a reflection layer for reflecting light is arranged on the interior surface of the glass pane and a protective layer is arranged on this reflection layer.
  • a reflection layer for reflecting light is arranged both on the interior surface of the glass pane and on the outside surface of the glass pane, and on the reflection layer which is arranged on the interior surface of the glass pane there is a protective layer arranged.
  • No protective layer is necessary for the reflection layer arranged on the outside surface of the glass pane, since this reflection layer is connected to the inner pane via the adhesive layer and is therefore protected.
  • a protective layer can also be arranged on the reflection layer arranged on the outside surface of the glass pane.
  • the protective layer is preferably transparent and applied flat, in particular congruently, to the reflection layer.
  • the protective layer is preferably a polymer based on polyacrylates, polyoximes, alkyd resins, polyurethanes or mixtures thereof.
  • the protective layer preferably has a thickness of 50 nm to 10 pm and particularly preferably 100 nm to 5 pm.
  • the protective layer does not consist of a glass material, that is, the protective layer is not a glass pane.
  • the protective layer protects the reflection layer from mechanical damage such as scratches. It can also serve to increase the durability of the reflective layer.
  • the adhesive layer is a thermoplastic layer or an optically clear adhesive (OCA).
  • OCA optical clear adhesives
  • An adhesive layer designed as a thermoplastic layer contains at least one thermoplastic polymer, preferably ethylene vinyl acetate (EVA), polyvinyl butyral (PVB) or polyurethane (PU) or mixtures or copolymers or derivatives thereof, particularly preferably PVB.
  • the thermoplastic layer is typically formed from a thermoplastic film (connecting film).
  • the thickness of the thermoplastic layer is preferably from 0.2 mm to 2 mm, particularly preferably from 0.3 mm to 1 mm, for example 760 ⁇ m.
  • the thermoplastic layer can be formed by a single film or by more than one film.
  • the glass pane can be firmly connected to the inner pane, for example by laminating.
  • the composite pane is preferably bent in one or more directions of space, as is common for motor vehicle windows, with typical radii of curvature in the range from approximately 10 cm to approximately 40 m.
  • the composite pane can also be flat, for example if it is intended as a pane for buses, trains or tractors.
  • the thermoplastic intermediate layer via which the outer pane is connected to the inner pane, contains at least one thermoplastic polymer, preferably ethylene vinyl acetate (EVA), polyvinyl butyral (PVB) or polyurethane (PU) or mixtures or copolymers or derivatives thereof, particularly preferably PVB.
  • the thermoplastic intermediate layer is typically formed from a thermoplastic film (connecting film).
  • the thickness of the thermoplastic intermediate layer is preferably from 0.2 mm to 2 mm, particularly preferably from 0.3 mm to 1 mm, for example 760 ⁇ m.
  • the thermoplastic intermediate layer can be formed by a single film or by more than one film.
  • the thermoplastic intermediate layer can also be a film with functional properties, for example a film with acoustically dampening properties.
  • the outer pane and inner pane preferably contain or consist of glass, particularly preferably flat glass, float glass, quartz glass, borosilicate glass, soda-lime glass, aluminosilicate glass, or clear plastics, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate , polystyrene, polyamide, polyester, polyvinyl chloride and/or mixtures thereof.
  • glass particularly preferably flat glass, float glass, quartz glass, borosilicate glass, soda-lime glass, aluminosilicate glass, or clear plastics, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate , polystyrene, polyamide, polyester, polyvinyl chloride and/or mixtures thereof.
  • the outer pane and the inner pane can be clear and colorless, but also tinted or colored. In a preferred embodiment, the total transmission through the windshield in the main viewing area is greater than 70% (illuminant A).
  • the term total transmission refers to the procedure for testing the light transmission of motor vehicle windows specified by ECE-R 43, Appendix 3, ⁇ 9.1.
  • the outer pane and the inner pane can be independently non-prestressed, partially prestressed or prestressed. If at least one of the panes is to have a prestress, this can be a thermal or chemical prestress.
  • the invention also relates to a projection arrangement which comprises a composite pane according to the invention and an imaging unit directed onto the reflection layer.
  • the reflection layer is arranged spatially in front of the masking layer when viewed through the inner window.
  • the area of the composite pane in which the reflection layer is arranged appears opaque.
  • the expression “in view through the composite pane” means that one looks through the composite pane, starting from the interior surface of the composite pane.
  • “spatially in front” means that the reflection layer is arranged spatially further away from the outside surface of the outer pane than the masking layer.
  • the masking layer is preferably widened at least in the area that overlaps with the reflection layer and in which the composite pane is used to display images. This means that the masking layer in this area, viewed perpendicular to the nearest section of the circumferential edge of the composite pane, has a greater width than in other sections. In this way, the masking layer can be adapted to the dimensions of the reflection layer.
  • FIG. 1 is a top view of an embodiment of the composite pane according to the invention.
  • FIG. 2 shows a cross section through the embodiment shown in FIG. 1,
  • FIG. 3 shows a cross section through a further embodiment of the composite pane according to the invention
  • FIG. 11 shows a cross section through a further embodiment of the composite pane according to the invention.
  • Figure 1 shows a top view of an embodiment of the composite pane 100 according to the invention and in Figure 2 the cross section through the composite pane 100 shown in Figure 1 is shown along the section line XX '.
  • the composite pane 100 shown in Figures 1 and 2 has an upper edge O, a lower edge U and two side edges S.
  • the composite pane 100 includes an outer pane 1 with an outside surface I and an inside surface II, an inner pane 2 with an outside surface III and an inside surface IV, a thermoplastic intermediate layer 3, a masking layer 4, an adhesive layer 5 and a glass pane 6 an outside surface V and an inside surface VI.
  • thermoplastic intermediate layer 3 is arranged between the outer pane 1 and the inner pane 2
  • the inner pane 2 is arranged between the outer pane 1 and the glass pane 6
  • the adhesive layer 5 is arranged between the inner pane 2 and the glass pane 6.
  • the outer pane 1, the thermoplastic intermediate layer 3 and the inner pane 2 are arranged one above the other over the entire surface.
  • the masking layer 4 is arranged between the outer pane 1 and the inner pane 2 in an area of the composite pane 100, the areal extent of which is smaller than the areal extent of the composite pane 100, ie the masking layer 4 does not extend over the entire surface of the composite pane 100.
  • the masking layer 4 is designed as a first opaque covering print arranged on the interior surface II of the outer pane 1 and is arranged only in an edge region of the composite pane 100 bordering the lower edge U.
  • the glass pane 6 is arranged in an area of the composite pane 100 which, when viewed vertically through the composite pane 100, lies completely in the area in which the masking layer 4 is arranged.
  • the glass pane 6 is thus smaller in terms of external dimensions than the inner pane 2.
  • the outside surface V of the glass pane 6 is connected to the interior surface IV of the inner pane 2 via the adhesive layer 5.
  • a reflection layer 7 for reflecting light is arranged on the interior surface VI of the glass pane 6.
  • the adhesive layer 5 consists, for example, of an optically clear adhesive.
  • the adhesive layer 5 is made of a thermoplastic material such as polyvinyl butyral (PVB), and the glass pane 6 has been bonded to the inner pane 2 by lamination.
  • PVB polyvinyl butyral
  • the composite disk 100 may have any suitable geometric shape and/or curvature.
  • the composite disk 100 is a curved composite disk.
  • the composite pane 100 is the windshield of a motor vehicle.
  • Figure 5 shows a cross section through a further embodiment of the composite pane 100 according to the invention.
  • the embodiment shown in cross section in Figure 5 differs from that shown in Figure 3 only in that the masking layer 4 is not arranged as a first on the interior surface II of the outer pane 1 opaque covering pressure is formed, but is formed as a first opaque covering pressure arranged on the outside surface III of the inner pane 2.
  • Figure 6 shows a cross section through a further embodiment of the composite pane 100 according to the invention.
  • the embodiment shown in cross section in Figure 6 differs from that shown in Figure 2 only in that the masking layer 4 is not arranged as a first on the interior surface II of the outer pane 1 opaque cover print is formed, but is formed as an opaque colored area of the thermoplastic intermediate layer 3.
  • Figure 7 shows a cross section through a further embodiment of the composite pane 100 according to the invention.
  • the one in Figure? The embodiment shown in cross section differs from that shown in Figure 3 only in that the masking layer 4 is not designed as a first opaque covering print arranged on the interior surface II of the outer pane 1, but rather as an opaque colored area of the thermoplastic intermediate layer 3.
  • Figure 8 shows a cross section through a further embodiment of the composite pane 100 according to the invention.
  • the embodiment shown in cross section in Figure 8 differs from that shown in Figure 2 only in that the reflection layer 7 is not on the interior surface VI of the glass pane 6, but on the external surface V of the glass pane 6 is arranged.
  • a protective layer can also be arranged on the reflection layer 7 directly adjacent to the adhesive layer 5.
  • Figure 9 shows a cross section through a further embodiment of the composite pane 100 according to the invention.
  • the embodiment shown in cross section in Figure 9 differs from that shown in Figure 2 only in that in addition to the reflection layer 7 arranged on the interior surface VI of the glass pane 6, there is also a a reflection layer 7 is arranged on the outside surface V of the glass pane 6.
  • Figure 10 shows a cross section through a further embodiment of the composite pane 100 according to the invention.
  • the embodiment shown in cross section in Figure 10 differs from that shown in Figure 9 only in that there is also a protective layer on the reflection layer 7 applied to the interior surface VI of the glass pane 6 8 is applied.
  • the protective layer 8 is, for example, a polymer based on polyacrylates, polyoximes, alkyd resins, polyurethanes or mixtures thereof.
  • the protective layer 8, for example has a thickness of 500 nm.
  • a further protective layer can also be arranged directly adjacent to the adhesive layer 5 on the reflection layer 7 applied to the outside surface V of the glass pane 6.
  • Figure 11 shows a cross section through a further embodiment of the composite pane 100 according to the invention.
  • the embodiment shown in cross section in Figure 11 differs from that shown in Figure 2 only in that the composite pane 100 additionally has a second opaque one applied to the interior surface IV of the inner pane 2 Cover pressure 9 has.
  • the second opaque cover print 9 is, for example, frame-shaped.
  • Figure 12 shows a cross section through a further embodiment of the composite pane 100 according to the invention.
  • the embodiment shown in cross section in Figure 12 differs from that shown in Figure 3 only in that the composite pane 100 additionally has a second opaque one applied to the interior surface IV of the inner pane 2 Cover pressure 9 has.
  • the second opaque cover print 9 is, for example, frame-shaped.
  • Figure 13 shows a cross section through a further embodiment of the composite pane 100 according to the invention.
  • the embodiment shown in cross section in Figure 13 differs from that shown in Figure 8 only in that the composite pane 100 additionally has a second opaque covering print 9 applied to the interior surface IV of the inner pane 2.
  • the second opaque cover print 9 is, for example, frame-shaped.
  • Figure 14 shows a cross section through a further embodiment of the composite pane 100 according to the invention.
  • the embodiment shown in cross section in Figure 14 differs from that shown in Figure 9 only in that the composite pane 100 additionally has a second opaque one applied to the interior surface IV of the inner pane 2 Cover pressure 9 has.
  • the second opaque cover print 9 is, for example, frame-shaped.
  • Figure 15 shows a cross section through a further embodiment of the composite pane 100 according to the invention.
  • the embodiment shown in cross section in Figure 15 differs from that shown in Figure 10 only in that the composite pane 100 additionally has a second opaque one applied to the interior surface IV of the inner pane 2 Cover pressure 9 has.
  • the second opaque cover print 9 is, for example, frame-shaped.
  • the projection arrangement 101 shown in FIG. 16 comprises a composite pane 100 and an imaging unit 10.
  • the projection arrangement 101 has an imaging unit 10.
  • the imaging unit 10 is used to generate p-polarized light and/or s-polarized light (image information), which is directed onto the reflection layer 7 and is reflected by the reflection layer 7 as reflected light into the vehicle interior, where it is reflected by a Viewer, e.g. driver, can be perceived.
  • the reflection layer 7 is designed to reflect the light from the imaging unit 10 in a suitable manner.
  • the light preferably hits the reflection layer 7 with an angle of incidence of 55° to 80°, in particular 62° to 77°.
  • the imaging unit 10 is, for example, a display, in particular an LCD display.
  • the imaging unit 10 is preferably used to generate only p-polarized light, which can also be seen well, in particular, with polarizing sunglasses that have an s-polarization filter.
  • FIG. 17 and 18 embodiments of the coated glass pane 6
  • FIG. 19 to 21 embodiments of the composite pane 100 according to the invention
  • the coated glass pane 6 is arranged on the outside surface (side III) of the inner pane 2.
  • These embodiments can equally be used in the projection arrangement 101 illustrated as an example in FIG. 16.
  • Figure 17 shows a cross section of an embodiment of the coated glass pane 6.
  • the cross section is only shown in the area of the glass pane 6.
  • the glass pane 6 is coated with a single-layer reflection layer 7.
  • the single-layer reflection layer 7 is a dielectric layer, or a silicon-based layer, which contains, for example, or consists of undoped silicon or doped silicon.
  • Doped silicon is doped, for example, with boron (B), aluminum (Al) and/or zirconium (Zr).
  • the single-layer reflection layer 7 is, for example, a carbide layer made of, for example, TiC or ZrC.
  • Figure 18 shows a cross section of a further embodiment of the coated glass pane 6.
  • the cross section is only shown in the area of the glass pane 6.
  • the glass pane 6 is coated with a two-layer reflection layer 7 (bilayer).
  • the two-layer reflection layer 7 consists of a first layer 11 and a second layer 12.
  • the first layer 11 consists of an optically high-refractive material
  • the second layer 12 consists of an optically low-refractive material, for example TiOx/SiOx.
  • the first layer 11 consists of doped silicon and the second layer 12 consists of a silicon compound, for example Si(B)/SiAIN x , Si(ZrAl)/SiAIO x , or Si(B)/SiAIO x .
  • Figure 19 shows a cross section through a further embodiment of the composite pane 100 according to the invention.
  • the cross section is only shown in the area of the glass pane 6.
  • the embodiment shown in cross section in Figure 19 differs from that shown in Figure 2 only in that the coated glass pane 6 is attached to the outside surface III of the inner pane 2.
  • the adhesive layer 5 is located between the glass pane 6 and the inner pane 2.
  • the reflection layer 7 is located between the glass pane 6 and the inner pane 2, i.e. is arranged on the interior surface VI of the glass pane 6.
  • Figure 20 shows a cross section through a further embodiment of the composite pane 100 according to the invention.
  • the cross section is only shown in the area of the glass pane 6.
  • the embodiment shown in cross section in FIG. 20 differs from that shown in FIG. 4 in that the coated glass pane 6 is attached to the outside surface III of the inner pane 2.
  • the adhesive layer 5 is located between the glass pane 6 and the inner pane 2.
  • the reflection layer 7 is located between the glass pane 6 and the inner pane 2, ie is arranged on the interior surface VI of the glass pane 6.
  • the masking layer 4, which is designed as a first opaque covering print arranged on the outside surface III of the inner pane 2 has one or more openings, so that light from the imaging unit 10 can hit the reflection layer 7 and be reflected by it.
  • FIG. 22 An exemplary embodiment of the method according to the invention is shown in FIG. 22 using a flowchart.
  • the glass pane 6 is connected to the inner pane 2 of the composite via an adhesive layer 5 to form a composite pane 100, such that the glass pane 6 is arranged in an area of the composite pane 100 which, when viewed vertically through the composite pane 100, is completely in the The area in which the masking layer 4 is arranged is located.
  • Steps S1, S2 and S3 can occur in any order or simultaneously.
  • the invention provides an improved composite pane with which the image of a projector is reflected and the virtual image can be visually perceived with sufficient brightness and high contrast, so that good visibility, in particular of safety-relevant information, is possible in all weather and lighting conditions is reliably guaranteed. In addition, unwanted secondary images can be avoided.
  • the composite pane can be produced efficiently and cost-effectively, and the production of the composite pane can be easily implemented in common manufacturing processes.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Transportation (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Ceramic Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne une vitre composite (100), comprenant au moins une vitre extérieure (1), une couche intermédiaire thermoplastique (3), une vitre intérieure (2), au moins une couche de masquage (4) qui est disposée dans une région de la vitre composite (100), une couche adhésive (5), et une vitre en verre (6) ayant une surface côté externe (V) et une surface côté interne (VI) et une épaisseur de 20 µm à 500 µm. La couche intermédiaire thermoplastique (3) est disposée entre la vitre extérieure (1) et la vitre intérieure (2), la couche adhésive (5) est disposée entre la vitre intérieure (2) et la vitre en verre (6), au moins une couche réfléchissante (7) pour réfléchir de la lumière est disposée sur la surface côté externe (V) de la vitre en verre (6) et/ou sur la surface côté interne (VI) de la vitre en verre (6), et la vitre en verre (6) est disposée dans une région de la vitre composite (100) qui se trouve entièrement dans la région dans laquelle la couche de masquage (4) est disposée lorsqu'elle est vue perpendiculairement à travers la vitre composite (100). La couche réfléchissante contient une couche diélectrique, une couche à base de silicium ou une couche de carbure ou est constituée de ces éléments.
EP23768786.8A 2022-08-30 2023-08-25 Vitre composite avec une couche réfléchissante appliquée dans des régions Pending EP4580874A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP22192935 2022-08-30
PCT/EP2023/073321 WO2024046888A1 (fr) 2022-08-30 2023-08-25 Vitre composite avec une couche réfléchissante appliquée dans des régions

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EP4580874A1 true EP4580874A1 (fr) 2025-07-09

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US (1) US20260070413A1 (fr)
EP (1) EP4580874A1 (fr)
CN (1) CN119789948A (fr)
WO (1) WO2024046888A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19726966C1 (de) 1997-06-25 1999-01-28 Flachglas Ag Verfahren zur Herstellung einer transparenten Silberschicht mit hoher spezifischer elektrischer Leitfähigkeit , Glasscheibe mit einem Dünnschichtsystem mit einer solchen Silberschicht und deren Verwendung
DE10126868C1 (de) 2001-06-01 2002-11-21 Saint Gobain Sekurit D Gmbh Scheibe mit einer opaken Beschichtung
US20090295681A1 (en) * 2008-05-27 2009-12-03 Gm Global Technology Operations, Inc. Virtual Image System for Windshields
DE102008031843A1 (de) 2008-07-05 2010-01-07 Mtu Aero Engines Gmbh Verfahren und Vorrichtung zum Kaltgasspritzen
US9347136B2 (en) 2014-01-31 2016-05-24 Pratt & Whitney Canada Corp. Method for applying a coating to a substrate
CA3014263A1 (fr) 2016-05-17 2017-11-23 Saint-Gobain Glass France Systeme d'affichage tete haute
GB202000103D0 (en) 2020-01-06 2020-02-19 Rolls Royce Plc Cold spraying
CN115136058A (zh) 2021-01-26 2022-09-30 法国圣戈班玻璃厂 用于平视显示器的交通工具板

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WO2024046888A1 (fr) 2024-03-07
CN119789948A (zh) 2025-04-08

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