EP4217197A1 - Vitre composite dotée de propriétés optiques régulables électriquement - Google Patents

Vitre composite dotée de propriétés optiques régulables électriquement

Info

Publication number
EP4217197A1
EP4217197A1 EP21766619.7A EP21766619A EP4217197A1 EP 4217197 A1 EP4217197 A1 EP 4217197A1 EP 21766619 A EP21766619 A EP 21766619A EP 4217197 A1 EP4217197 A1 EP 4217197A1
Authority
EP
European Patent Office
Prior art keywords
pane
layer
functional element
state
infrared
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
EP21766619.7A
Other languages
German (de)
English (en)
Inventor
Michael Labrot
Adil JAAFAR
Amaury PATISSIER
Laurent Maillaud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of EP4217197A1 publication Critical patent/EP4217197A1/fr
Pending legal-status Critical Current

Links

Classifications

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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
    • B32B17/10431—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
    • B32B17/10513—Electrochromic layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
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    • B32B17/10082—Properties of the bulk of a glass sheet
    • B32B17/1011—Properties of the bulk of a glass sheet having predetermined tint or excitation purity
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    • 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
    • B32B17/1022—Metallic coatings
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    • 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
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    • B32B17/10633—Infrared radiation absorbing or reflecting agents
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    • 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
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    • 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
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    • 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
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    • C03C17/3626—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer one layer at least containing a nitride, oxynitride, boronitride or carbonitride
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    • G—PHYSICS
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    • G02F1/15—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 an electrochromic effect
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    • 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/153—Constructional details
    • 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/153—Constructional details
    • G02F1/155—Electrodes
    • 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/153—Constructional details
    • G02F1/157—Structural association of cells with optical devices, e.g. reflectors or illuminating devices
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/28—Multiple coating on one surface
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • B32B2307/4026—Coloured within the layer by addition of a colorant, e.g. pigments, dyes
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/41—Opaque
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/414—Translucent
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/416—Reflective
    • 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
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/08—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 light absorbing layer
    • G02F2201/083—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 light absorbing layer infrared absorbing

Definitions

  • the present invention relates to a composite pane with electrically switchable optical properties and a method for producing a composite pane.
  • a vehicle occupant closes a mechanical shutter of a sunroof, they often do more than just reduce the amount of light entering the vehicle interior. Instead, it may be intended to be protected from heat from thermal radiation entering the vehicle.
  • This dimming function can be achieved by a composite pane with electrically controllable optical properties that allow light transmission to be altered in response to an applied voltage. Electrochromic materials can be used for this.
  • the inventors have found that, with some electrochromic materials, there can be a shift in the transmission spectra into the infrared range between the bright state and the darkened state. In this case, the pane is darkened in the visible spectral range, but the heat radiation enters the interior of the vehicle more intensely. This can lead to uncomfortable thermal irritation for the vehicle occupant.
  • a composite pane with electrically controllable optical properties with an outer pane and an inner pane, which are connected to one another over an intermediate layer; an electrochromic functional element with electrically controllable optical properties within the intermediate layer, in which the total solar energy transmission TTS is higher in the darkened state than in the bright state and/or the energy transmission TE is higher in the darkened state than in the bright state; and at least one infrared protective layer which is arranged or applied on an inside surface of the inner pane facing the intermediate layer, on an inside surface of the outer pane facing the intermediate layer or within the intermediate layer, the infrared protective layer having at least one silver-containing layer.
  • the infrared protective layer interacts with the electrochromic functional element in such a way that the total solar energy transmission TTS through the laminated pane (100) in the darkened state is lower than in the bright state and/or the energy transmission TE through the laminated pane (100) in the darkened state is lower than is in the bright state.
  • the infrared protective layer has at least one silver-containing layer.
  • the infrared protection layer blocks infrared radiation and allows visible light to pass through.
  • This laminated glass pane also prevents the ingress of infrared radiation if there is a shift in the transmission spectra as a result of the switching of the electrochromic functional element.
  • the laminated glass pane can be used, for example, in the automotive sector. In this case, the inner pane is adjacent to the vehicle interior, whereas the outer pane is adjacent to the outside environment.
  • Electrochromic functional elements change from darkened to bright states by means of reversible redox reactions.
  • the visible spectral range or visible light is understood to mean the spectral range from 380 nm to 780 nm.
  • blocking infrared radiation means that the infrared protective layer at least partially reflects and/or absorbs infrared radiation.
  • the infrared protection layer particularly preferably reflects infrared radiation.
  • the reflection of the infrared radiation has the advantage that the laminated pane does not heat up as much.
  • An electrochromic functional element is an element which has optical properties that can be switched, controlled or regulated. The transmission of light can be actively influenced by applying an electrical voltage. Installed in the laminated pane, a user can, for example, switch from a transparent (lighter state) to a less transparent state, ie dark or darkened state of the laminated pane. Gradations are also possible.
  • Electrochromic functional elements which the laminated pane according to the invention can have are known to the person skilled in the art. These can be constructed, for example, as disclosed in US Pat. No. 5,321,544, US Pat. No. 5,404,244, US Pat. No. 7,372,610 B2, US Pat.
  • the electrochromic functional element preferably includes in the following order:
  • the first surface electrode and the second surface electrode are intended to be electrically connected to a voltage source. All of the layers mentioned are preferably firmly connected to one another. All of the layers mentioned are preferably arranged congruently with one another.
  • the working electrode is also often referred to as an electrochromic layer and the counter-electrode as an ion storage device.
  • the working electrode and the counter-electrode are capable of reversibly storing charges.
  • the oxidation states of the working electrode in the stored and stored state differ in their coloring, with one of these states being light and another darkened.
  • the storage reaction can be controlled via the externally applied potential difference.
  • the color of the electrochromic functional element that can be set via the electrical potential is preferably set in a color range from blue to black; the color that can be set is in particular black.
  • the electrical potential range for changing between light and dark of the electrochromic functional element is preferably 0 V to 7 V and particularly preferably 0.5 V to 5 V direct voltage.
  • the first surface electrode and the second surface electrode are preferably transparent and electrically conductive.
  • the first flat electrode and the second flat electrode particularly preferably contain silver, gold, copper, nickel, chromium, tungsten, graphite, molybdenum and/or a transparent conductive oxide, preferably indium tin oxide (ITO), fluorine-doped tin oxide (SnÜ2:F) , antimony-doped tin oxide, aluminum-doped zinc oxide, boron-doped zinc oxide or gallium-doped zinc oxide.
  • ITO indium tin oxide
  • SnÜ2:F fluorine-doped tin oxide
  • antimony-doped tin oxide aluminum-doped zinc oxide
  • boron-doped zinc oxide or gallium-doped zinc oxide preferably indium tin oxide (ITO), fluorine-doped tin oxide (SnÜ2:F) , antimony-doped tin oxide, aluminum-doped zinc oxide, boron-doped zinc oxide or gallium-d
  • first surface electrode and/or the second surface electrode are based on a metal, they preferably have a total layer thickness of 1 nm to 50 nm, preferably 2 nm to 30 nm, particularly preferably 3 nm to 15 nm. If the first surface electrode and/or the second surface electrode is based on a transparent conductive oxide, they preferably have a total thickness of 20 nm to 2 ⁇ m, particularly preferably 50 nm to 1 ⁇ m, very particularly preferably 100 nm to 600 nm and in particular from 300 nm to 500 nm. This achieves advantageous electrical contacting of the working electrode and counterelectrode and good horizontal conductivity of the layers. According to the invention, the first and second surface electrodes are thin layers.
  • a polymeric material If something is designed “on the basis” of a polymeric material, the majority of it, ie at least 50%, preferably at least 60% and in particular at least 70%, consists of this material. It can also contain other materials such as stabilizers or plasticizers.
  • the total layer resistance of the first flat electrode and the second flat electrode is preferably 0.01 ohms/square to 100 ohms/square, particularly preferably ohms/square to 20 ohms/square, very particularly preferably 0.5 ohms/square to 5 ohms/square . In this area there is a sufficiently large current flow between the electrodes of the electrochromic functional element ensured, which enables optimal functioning of the working electrode and counter electrode.
  • the working electrode can be based on an inorganic or organic material.
  • the working electrode is preferably based on tungsten oxide, but can also be based on molybdenum, titanium or niobium oxide and mixtures thereof.
  • the working electrode can also be based on polypyrrole, PEDOT (poly-3,4-ethylenedioxythiophene), and polyaniline and mixtures thereof.
  • the counter-electrode can be formed, for example, on the basis of titanium oxide, cerium oxide, iron(II) hexacyanidoferrate(II/II) (Fe4[Fe(CN)6h) and nickel oxide, as well as mixtures thereof.
  • the electrolyte is ionically conductive and may be based on a layer of hydrated tantalum oxide and a layer of hydrated antimony oxide. Alternatively, the electrolyte can also be based on a polymer that contains lithium ions or be based on tantalum(V) oxide and/or zirconium(IV) oxide.
  • the electrochromic functional element contains no electrolyte, with the working electrode itself functioning as the electrolyte.
  • the working electrode itself functioning as the electrolyte.
  • tungsten oxide can assume the function of an electrolyte.
  • the electrochromic functional element preferably also includes a first film and a second film.
  • the first surface electrode is arranged on the first foil with a surface facing away from the working electrode, and the second surface electrode is arranged on the second foil with a surface facing away from the counter-electrode.
  • the first film and/or the second film are preferably transparent.
  • the first film and/or the second film are preferably based on transparent polyethylene terephthalate, polycarbonate and/or polycaprolactone.
  • the total layer thickness of the electrochromic functional element is preferably from 0.2 mm to 0.5 mm for this embodiment.
  • the outer pane and the inner pane each have an outside surface which faces away from the intermediate layer. If something is arranged "area-wise between the outer pane and the inner pane", this means within the meaning of the invention that it can be arranged on the electrochromic functional element, between the inner surface of the outer pane or the inner surface of the inner pane. In this case, it can be applied spatially directly to the outer pane or the inner pane or it can be arranged on the inner pane or the outer pane by additional layers, such as a covering print.
  • area it is meant that something extends over a majority of the entire major surface of the laminated pane. Preferably something extends over at least 60%, particularly preferably over at least 70%, very particularly preferably over at least 90% and in particular over 100% over the main surface of the laminated pane.
  • the expression "bright state” in connection with the electrochromic functional element means in the context of the invention that the electrochromic functional element has a maximum light transmittance for visible light with a light transmittance (TL) of at least 15%, preferably at least 30%, particularly preferably at least 50% .
  • the expression “dark state” or “darkened state” in connection with the electrochromic functional element means that the electrochromic functional element has a minimum light transmission for visible light with a light transmittance (TL) of at most 10%, preferably at most 5% and in particular at most 1%. having.
  • the light transmission through the laminated pane (100) in the darkened state of the electrochromic functional element (107) is less than or equal to 15%, preferably less than or equal to 10%. With light transmissions of 15% or less, the brightness is noticeably reduced for an occupant of a vehicle in which such a composite pane is used, for example, as a roof pane. This improves the comfort of the vehicle.
  • the infrared protective layer is arranged over the area between the outer pane and the functional element. This achieves the technical advantage, for example, that the infrared light cannot enter the functional element and cannot heat it up, and the best thermal comfort is achieved.
  • the infrared protective layer is arranged over the area between the inner pane and the electrochromic functional element. This achieves the technical advantage, for example, that entry of infrared light can be effectively suppressed
  • the infrared protective layer is applied to the inside surface of the outer pane or to a polyethylene terephthalate layer, with the polyethylene terephthalate layer being arranged within the intermediate layer.
  • the layers of the infrared protective layer can be applied to the polyethylene terephthalate layer in a coating process.
  • the polyethylene terephthalate layer serves as a substrate for the metal layers. This also achieves the technical advantage, for example, that the infrared light can be effectively blocked.
  • the infrared protective layer comprises at least one silver layer and preferably several silver layers.
  • Such silver layers have a particularly advantageous electrical conductivity combined with high transmission in the visible spectral range.
  • the thickness of a silver layer is preferably from 5 nm to 50 nm, particularly preferably from 8 nm to 25 nm. In this range for the thickness of the silver layer, an advantageously high transmission in the visible spectral range and a particularly advantageous electrical conductivity are achieved.
  • At least one dielectric layer is preferably arranged in each case between two adjacent silver layers of the coating.
  • a further dielectric layer is preferably arranged below the first and/or above the last silver layer.
  • a dielectric layer contains at least a single layer of a dielectric material, for example containing a nitride such as silicon nitride or an oxide such as aluminum oxide.
  • dielectric layers can also comprise a plurality of individual layers, for example individual layers of a dielectric material, smoothing layers, matching layers, blocking layers and/or antireflection layers.
  • the thickness of a dielectric layer is, for example, from 10 nm to 200 nm. This achieves the technical advantage, for example, that infrared light can be effectively blocked. Infrared light blocking is achieved particularly well when the infrared protective layer has at least two Silver layers, particularly preferably three silver layers and in particular exactly three silver layers.
  • the energy transmission TE in the bright state of the laminated pane in the spectral range from 800 nm to 2500 nm is less than or equal to 25%, preferably less than or equal to 15% and in particular less than or equal to 5%.
  • the total solar energy transmission TTS is preferably less than or equal to 35%, particularly preferably less than or equal to 25%, in particular less than or equal to 15% for the laminated pane in the bright state. This also achieves the technical advantage, for example, that heating behind the laminated glass pane is effectively reduced.
  • the light transmission TL through the compound pane in the bright state of the electrochromic functional element is preferably greater than or equal to 5%, particularly preferably greater than or equal to 10% and very particularly preferably greater than or equal to 20%.
  • the light transmission TL through the compound pane in the darkened state of the electrochromic functional element is preferably less than or equal to 10%, particularly preferably less than or equal to 5% and in particular less than or equal to 1%. These are degrees of transmission for light which, in the respective case (bright or darkened), are perceived as pleasant by the occupants of a vehicle with such a laminated pane.
  • Energy transmission TE and total solar energy transmission TTS are a measure of the amount of heat entering a vehicle or building through the composite pane. Very high TE or TTS values therefore mean that a building or vehicle absorbs a lot of heat. This generally worsens the thermal comfort for the occupants or occupants.
  • the averaging for light transmittance TL, energy transmittance TE and total solar energy transmittance TTS can be calculated according to ISO 9050 (2003-08) for
  • TE and TTS can also be determined using ISO 13837 (2008-04) for vehicle glazing.
  • D is the relative spectral distribution of the illuminant used (A) (see ISO/CIE 10526)
  • T( ) is the spectral transmittance of the glazing
  • V(A is the sensitivity curve of the human eye (see ISO/CIE 10527)
  • A is the wavelength interval is.
  • TTS is the sum of TE and the secondary heat transfer.
  • Secondary heat transfer means heat components that are based on convection and the infrared radiation re-emitted by the glass.
  • the laminated pane comprises an emissivity-reducing coating.
  • the emissivity-reducing coating is preferably applied to the outside surface of the inner pane.
  • the emissivity-reducing coating is a coating that reflects thermal radiation. Such a coating is often also referred to as a low-E coating or low-emissivity coating. It has the function of preventing the radiation of heat into the interior (thermal radiation from the pane itself) and also the radiation of heat from the interior. under emissivity is understood within the meaning of the invention, the normal emissivity at 283 K according to the standard EN 12898.
  • the emissivity-reducing coating is preferably a sequence of thin layers (layer structure, layer stack).
  • One layer is an electrically conductive layer, whereas the optical properties (transmission and reflectivity) of the coating are largely determined by the other layers and can thus be specifically adjusted through their design.
  • so-called antireflection coatings or antireflection coatings which have a low refractive index of preferably at most 1.8 and particularly preferably at most 1.6, have a particular influence.
  • these anti-reflection coatings can increase the transmission through the pane and reduce the reflectivity. The effect depends crucially on the refractive index and layer thickness.
  • the emissivity-reducing coating contains at least one transparent, electrically conductive oxide (TCO, transparent conductive oxide).
  • TCO transparent, electrically conductive oxide
  • the emissivity-reducing coating preferably contains indium tin oxide (ITO, indium tin oxide).
  • the emissivity-reducing coating can also contain, for example, indium-zinc mixed oxide (IZO), gallium-doped tin oxide (GZO), fluorine-doped tin oxide (SnO2:F) or antimony-doped tin oxide (SnO2:Sb).
  • ITO indium tin oxide
  • IZO indium-zinc mixed oxide
  • GZO gallium-doped tin oxide
  • SnO2:F fluorine-doped tin oxide
  • SnO2:Sb antimony-doped tin oxide
  • Such layers (TCO layers) are preferably arranged between two dielectric layers. Examples of common dielectric layers are:
  • Anti-reflection layers that reduce the reflection of visible light and thus increase the transparency of the coated pane, for example based on silicon nitride, silicon-metal mixed nitrides such as silicon zirconium nitride, titanium oxide, aluminum nitride or tin oxide, with layer thicknesses of 10 nm to 100 nm, for example;
  • Matching layers which improve the crystallinity of the electrically conductive layer, for example based on zinc oxide (ZnO), with layer thicknesses of, for example, 3 nm to 20 nm;
  • Smoothing layers which improve the surface structure for the overlying layers, for example based on a non-crystalline oxide of tin, silicon, titanium, zirconium, hafnium, zinc, gallium and/or Indium, in particular based on tin-zinc mixed oxide (ZnSnO), with layer thicknesses of 3 nm to 20 nm, for example.
  • ZnSnO tin-zinc mixed oxide
  • the emissivity-reducing coating is preferably built up in one of the following sequences, starting from the surface to be coated:
  • the thickness of the electrically conductive layer is preferably from 50 nm to 130 nm, particularly preferably from 60 nm to 120 nm, for example from 70 nm to 100 nm. This achieves particularly good results in terms of optical transparency.
  • the thickness of each silicon nitride layer is independently preferably from 1 nm to 100 nm, particularly preferably from 5 nm to 70 nm and in particular from 8 nm to 65 nm.
  • the thickness of the silicon oxide layer is independently preferably from 5 nm to 80 nm , particularly preferably from 10 nm to 60 nm and in particular from 15 nm to 50 nm. In this layer thickness range, particularly good results are achieved in relation to the amount of reflected thermal radiation and the emission reduction.
  • the emissivity-reducing coating and the infrared protection layer are preferably transparent and do not noticeably restrict the view through the pane.
  • the absorption of the emissivity-reducing coating and the infrared protection layer is preferably from about 1% to about 20% in the visible spectral range.
  • Emissivity-reducing coatings which the laminated pane according to the invention can have are known to the person skilled in the art. These can be designed, for example, as disclosed in WO2018206236A1.
  • the infrared protective layer is designed to reflect impinging infrared light.
  • the technical advantage is also achieved, for example, that a lower Energy transmission TE and a lower total solar energy transmission TTS can be achieved.
  • the infrared protective layer is designed to absorb incident infrared light. This also achieves the technical advantage, for example, that entry of infrared light is reduced.
  • the electrochromic functional element is arranged between two layers comprising polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), polyurethane (PU) and/or cycloolefin polymer (COP).
  • the layers are preferably based on polyvinyl butyral (PVB).
  • the layers preferably contain at least one plasticizer. This achieves the technical advantage, for example, that the functional element is embedded between two suitable layers.
  • the intermediate layer is thus preferably formed from two layers.
  • the electrochromic functional element is surrounded all around by a third layer.
  • the third layer is designed like a frame with a recess into which the electrochromic functional element is inserted.
  • the third layer can be formed by a thermoplastic film, which preferably comprises polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), polyurethane (PU) and/or cycloolefin polymer (COP) and preferably at least one plasticizer the recess has been introduced by cutting out.
  • the third layer can also be composed of several foil sections around the functional element.
  • the intermediate layer is then formed from a total of at least three layers arranged areally one on top of the other, with the middle layer having a recess in which the electrochromic functional element is arranged.
  • the third layer is sandwiched between the first and second layers, with the side edges of all layers preferably being in registry.
  • the third layer preferably has approximately the same thickness as the functional element. This compensates for the local thickness difference that is introduced by the locally limited functional element, so that glass breakage during lamination can be avoided and an improved visual appearance is created.
  • at least one of the layers comprises dye molecules for neutralizing the color of the electrochromic functional element.
  • the color of the electrochromic functional element can be neutralized when looking through the laminated pane.
  • the color of the dye molecules or thermoplastic layer is preferably yellow or orange.
  • the electrochromic functional element and/or the infrared protective layer has a thickness of 0.1 mm to 1 mm, preferably 0.3 nm to 0.5 mm nm. This achieves the technical advantage, for example, that the transparency of the laminated pane is only slightly impaired in the visible range.
  • the outer pane and/or the inner pane contain or consist of soda-lime glass, quartz glass or borosilicate glass.
  • the inner pane and/or the outer pane have a thickness of 0.5 mm to 15 mm, particularly preferably 1 mm to 5 mm. This also achieves the technical advantage, for example, that particularly suitable materials are used for the outer pane and/or the inner pane.
  • the outer pane and the inner pane can be flat glass (flat glass). This is particularly useful for applications in the building sector. Alternatively, the outer pane and the inner pane can also be curved. This is particularly useful for applications in the automotive sector.
  • this technical problem is solved by a method for producing a laminated pane with a pane and an inner pane which are connected to one another over an area by an intermediate layer.
  • the procedure includes the steps: An infrared protective layer comprising at least one silver-containing layer is arranged or applied to an inner surface of the outer pane facing the intermediate layer, an inner surface of the inner pane facing the intermediate layer or within the intermediate layer.
  • An electrochromic functional element with electrically controllable optical properties is arranged within the intermediate layer, with the total solar energy transmission TTS of the electrochromic functional element being higher in the darkened state than in the bright state and/or the energy transmission TE of the electrochromic functional element being higher in the darkened state than in the bright state is.
  • the infrared protective layer interacts with the electrochromic functional element in such a way that the total solar energy transmission TTS through the laminated pane is lower in the darkened state than in the bright state and/or the energy transmission TE through the laminated pane in the darkened state is lower than in the bright state.
  • the invention also extends to the use of the composite pane according to the invention in means of transport for traffic on land, in the air or on water, in particular in motor vehicles, the composite pane being used for example as a side window and/or glass roof, preferably as a glass roof.
  • the use of the laminated pane as a vehicle glass roof is preferred.
  • the laminated pane according to the invention can also be used as a functional and/or decorative individual piece and as a built-in part in furniture, appliances and buildings.
  • the laminated pane can also be used as part of a transparent display.
  • FIG. 1 shows a schematic cross-sectional view through a laminated pane with multiple layers
  • Fig. 2 transmission spectra of an electrochromic functional element in the bright and darkened state without an infrared protective layer
  • FIG. 6 shows a further schematic stack structure with a tinted thermoplastic layer
  • FIG. 11 is a block diagram of a method of making a laminated pane.
  • the composite pane 100 has multiple layers.
  • An outer pane 103 is connected over an area to an inner pane 105 via an intermediate layer 111 .
  • the outer pane 103 and the inner pane 105 are permanently and stably connected to one another by lamination via the intermediate layer 111 .
  • the intermediate layer 111 comprises at least one thermoplastic adhesive film.
  • the thermoplastic adhesive film contains at least one thermoplastic polymer, preferably ethylene vinyl acetate (EVA) and/or polyvinyl butyral (PVB). This achieves a connection between the intermediate layer 111 and the outer pane 103 and the inner pane 105 .
  • EVA ethylene vinyl acetate
  • PVB polyvinyl butyral
  • thermoplastic adhesive film can also contain, for example, at least polyurethane, polyethylene, polyethylene terephthalate, polypropylene, polycarbonate, polymethyl methacrylate, polyacrylate, polyvinyl chloride, polyacetate resin, casting resins, acrylates, fluorinated ethylene propylene, polyvinyl fluoride and/or ethylene tetrafluoroethylene.
  • the thickness of the thermoplastic adhesive film is preferably from 0.25 mm to 1 mm, for example 0.38 mm or 0.76 mm.
  • An electrochromic functional element 107 with electrically controllable optical properties is arranged in the intermediate layer 111 and can be electrically controlled back and forth between a bright state and a darkened state. In the bright state, the functional element 107 reduces the infrared radiation and in the darkened switched state, the functional element 107 is more permeable to infrared radiation (see FIG. 2).
  • the intermediate layer 111 also has an infrared protective layer 109 for blocking infrared radiation and two polycaprolactone layers (PCL layers) 113 between which the functional element 107 is arranged.
  • the functional element 107 can be applied, for example, to the inside surface of the outer pane 103 or the inner pane 105 .
  • the inside surface is the surface of a pane that faces the intermediate layer.
  • the functional element 107 is arranged in terms of area between at least two thermoplastic adhesive films.
  • Functional element 107 is connected to outer pane 103 via at least one first thermoplastic adhesive film and to inner pane 105 via at least one second thermoplastic adhesive film.
  • the first and the second thermoplastic adhesive film are in contact with the outer pane 103 and the inner pane 105, respectively, and cause the functional element 107 to be bonded to the outer pane 103 and the inner pane 105 to form the composite pane 100.
  • the outer pane 103 and the inner pane 105 can generally be non-tempered, partially tempered or toughened glass, preferably flat glass, float glass, quartz glass, borosilicate glass, soda-lime glass or clear plastics, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene , Polyamide, polyester, polyvinyl chloride and / or mixtures thereof and preferably have a thickness of 0.5 mm to 15 mm, particularly preferably from 1 mm to 5 mm.
  • the transmission of the electrochromic functional element 107 in the dark state or darkened state is lower than in the light state.
  • the transmission of the electrochromic functional element 107 is higher in the darkened state than in the bright state. In this case, the spectrum is shifted when the functional element 107 is switched.
  • the transmission curves show that the bright state blocks the infrared light and the darkened state allows the infrared light to pass.
  • the energy transmission TE and the total solar energy transmission TTS for the darkened state are therefore higher than for the light state.
  • 3 shows transmission spectra of the electrochromic functional element 107 without the infrared protective layer 109 in the bright state and in the darkened state. These transmission spectra correspond to those from FIG. 2. In addition, the reflection spectra of the functional element 107 in the bright state and in the dark state or darkened state are shown.
  • FIG. 4 shows the transmission spectra of the electrochromic functional element 107 in the bright state and in the dark or darkened state with the additional infrared protective layer 109.
  • the transmission of infrared light is essentially blocked when the functional element 107 is in the darkened state.
  • the reflection of the infrared light is higher when the functional element 107 is in the darkened state.
  • the thermal irritation caused by the infrared radiation can be prevented by the infrared protective layer 109, such as, for example, infrared-absorbing polyvinyl butyral (PVB) or infrared-reflecting layers.
  • a suitable infrared protective layer 109 can be determined by simulation and optical measurements of the stack structure of the laminated pane 100. The aim is that the energy transmission TE is greater in the bright state than in the darkened state (TE(bright) > TE(darkened)) and the total solar energy transmission TTS is also greater in the bright state than in the darkened state (TTS(bright) > TTS(darkened)).
  • a bluish color of the electrochromic (EC) functional element 107 in the darkened state 203 can be neutralized by adding a yellow PVB interlayer.
  • the following values result for the light transmission TL, the energy transmission TE and the total solar energy transmission TTS.
  • the layer sequences mentioned below go in order from the outside to the inside.
  • the inner pane 105 and the outer pane 103 consist, for example, of soda-lime glass.
  • the inner pane 105 and the outer pane 103 consist, for example, of soda-lime glass.
  • the infrared protective layer is an infrared-absorbing layer based on PVB.
  • the infrared protection layer 109 is a combination of multiple non-metallic interference layers applied to a film that reflects infrared solar energy with minimal effect on visible transmission.
  • the infrared protective layer 109 in this example consists of a silver-containing, transparent polyethylene terephthalate (PET) film sandwiched between PVB-based layers 113 to provide a protective barrier against harmful solar radiation.
  • the infrared protection layer 109 has in this Example 3 silver layers. The silver layers are separated from each other by dielectric layers.
  • the infrared protection layer 109 is silver-based and reflects light in the infrared range from 800 nm upwards.
  • the infrared protection layer 109 has 2 silver layers in this example.
  • the infrared protective layer 109 is applied directly to the inside surface, ie the surface facing the layers 113, of the outer pane 103.
  • the infrared protective layer 109 with 3 layers of silver blocks the TE and TTS through the laminated pane even better than the infrared protective layer 109 as shown in Example 6. 7.
  • the low-emissivity emissivity-reducing coating 117 (Low E layer) is a layer configured to reflect the thermal radiation at room temperature or to lower the emission.
  • the emissivity-reducing coating 117 is, for example, a layer sequence having an ITO layer.
  • the wavelength range of the reflection is 10 pm, for example. Since the glass is not transparent in this wavelength range, this layer is on the outside surface of the inner pane 100.
  • Figures 4, 7 and 8 show the optical performance of the above example number 6, in which an infrared protection layer 109 with 3 silver layers is used. It is found that the infrared transmission of the composite pane 100 in the darkened state can be completely suppressed, except for a small peak around a wavelength of 800 nm.
  • a particularly preferred stack structure for an application in the automotive sector is a combination with an emissivity-reducing coating 117 as in Example shown with number 7.
  • a color matching of the laminated pane 100 can be carried out.
  • electrochromic molecules to the electrochromic device 107 that switch to yellow or red to produce an overall neutral gray color.
  • dyes can also be used in the thermoplastic layer 113.
  • Such inked Thermoplastic layers 113 which are preferably based on PVB, cannot be actively switched and affect both the bright and the darkened state equally.
  • FIG 5 shows a schematic stack structure of the laminated glass pane 100.
  • the stack structure corresponds to the example with the number 7 with two clear layers 113 which are formed, for example, on the basis of PVB.
  • the laminated pane 100 has an emissivity-reducing coating 117 on the outside surface of the inner pane 105 .
  • the laminated pane 100 has different colorings in the light, ie transparent, state and darkened state (see Table 1).
  • Table 1 Colorations for the light and darkened state of the laminated pane 100 from FIG.
  • Fig. 6 shows another schematic stack structure of the laminated glass pane 100.
  • the stack structure corresponds to example number 7, in which the clear thermoplastic layer 113, for example based on PVB, is replaced by a colored, yellow thermoplastic layer 115, which is based, for example, on formed by PVB has been replaced.
  • a color balance with regard to the functional element 107 is thereby achieved.
  • Color matching is performed on the colored yellow layer 115.
  • the concentration of a dye can be adjusted to the thickness of the layer 115.
  • a neutral gray color of the laminated pane 100 is obtained if the color values of the functional layer 107 are in the blue range.
  • the laminated pane 100 has corresponding colorings in the light, ie transparent, state and darkened state (see Table 2).
  • Table 2 Colorations for the light and darkened state of the laminated pane 100 from Figure 6.
  • a colored layer 115 which is based on PVB
  • other layers can be used, such as ethylene-vinyl acetate copolymer (EVA), polyurethane (PU) or cycloolefin polymer (COP).
  • EVA ethylene-vinyl acetate copolymer
  • PU polyurethane
  • COP cycloolefin polymer
  • FIG. 7A shows another schematic cross-sectional view through a laminated pane 100 with multiple layers.
  • FIG. 7B shows the spectra associated with FIG. 7A.
  • the laminated pane 100 has a tinted lower glass (VG10) as the inner pane 105 .
  • the tinted glass is a gray glass with a light transmission of 28%.
  • the infrared protective layer 109 is a three-layer silver layer on the inside surface of the outer pane 103. This structure of the laminated pane 100 also covers a realistic application due to the lower light transmission and achieves improved color neutrality.
  • FIG. 8A shows another schematic cross-sectional view through a composite pane 100 with multiple layers.
  • FIG. 8B shows the spectra associated with FIG. 8A.
  • the laminated pane 100 has a tinted lower glass (VG10) as the inner pane 105 and an emissivity-reducing coating 117 which is designed to reflect thermal radiation at room temperature or to reduce emissions.
  • the emissivity-reducing coating is, for example, a layer sequence having an ITO layer.
  • the tinted glass is a gray glass with a light transmission of 28%.
  • the infrared protective layer 109 is, for example, a three-layer silver layer which is on the inside surface of the outer pane 103 is applied. A realistic application is covered by this structure of the laminated pane 100 due to the lower light transmission.
  • the structure with the emissivity-reducing coating 117 (low E layer) has approximately the same spectrum and thus TL and TE as that shown in Figure 7B, without the emissivity-reducing coating 117.
  • the composite pane 100 with the emissivity-reducing coating 117 but has significantly better TTS values. This effect is achieved by the emissivity-reducing coating 117 .
  • SPD functional element SPD - suspended particle device
  • the SPD functional element is inserted into a laminated pane 100 and the stack structure of the laminated pane 100 is:
  • the inner pane 105 and the outer pane 103 consist, for example, of soda-lime glass.
  • the transmission of the SPD functional element is lower in the dark or darkened state than in the bright state.
  • the transmission of the SPD Functional element in the darkened state especially in the more frequented infrared range (780 nm to 1300 nm), also lower than in the bright state. In this case, there is no spectrum shift when switching the SPD functional element.
  • the transmission curves show that SPD devices do not have the problem that the light state blocks the infrared light and the dark state allows the infrared light to pass.
  • the energy transmission TE and the total solar energy transmission TTS for the darkened state are significantly lower than for the light state.
  • the other electrochromic functional element differs from the electrochromic functional elements 107 from Examples 1 to 7 and Figures 1 to 8.
  • the other electrochromic functional element is used in a laminated pane 100 and the stacked structure of the laminated pane 100 is:
  • the transmission of the other electrochromic functional element is lower in the dark or darkened state than in the light state.
  • the transmission of the other electrochromic functional element is slightly lower in the darkened state than in the bright state.
  • the transmission curves show that not all electrochromic functional elements have the problem that the bright state blocks the infrared light and the dark one State that allows infrared light to pass.
  • the energy transmission TE and the total solar energy transmission TTS for the darkened state are significantly lower for certain electrochromic functional elements (e.g. the one shown in this example) than for the light state.
  • step S101 an infrared protection layer 109 for blocking infrared radiation is applied to an outer pane 103 or an inner pane 104 or arranged within an intermediate layer 111.
  • step S102 an electrochromic functional element 107 with electrically controllable optical properties is arranged within the intermediate layer 111.
  • the total solar energy transmission TTS is higher in the darkened state than in the bright state and/or the energy transmission TE is higher in the darkened state than in the bright state.
  • the outer pane 103 and the inner pane 105 are then connected to one another via the intermediate layer 111 to form a composite pane 100 .
  • the total solar energy transmission TTS through the laminated pane 100 is lower in the darkened state than in the bright state and/or the energy transmission TE through the laminated pane (100) is lower in the darkened state than in the bright state.
  • This laminated pane 100 meets the automotive manufacturers' expectations in terms of thermal comfort (TTS(light)>TTS(darkened)), aesthetics (color) and durability.
  • the composite pane 100 achieves the technical advantage that unwanted heating of a vehicle interior and thermal irritation of a vehicle occupant are prevented.
  • All of the features explained and shown in connection with individual embodiments of the invention can be provided in different combinations in the object according to the invention in order to realize their advantageous effects at the same time.
  • All method steps can be implemented by devices that are suitable for carrying out the respective method step.
  • All functions performed by physical features can be a method step of a method.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Laminated Bodies (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

La présente invention concerne une vitre composite (100) dotée de propriétés optiques régulables électriquement comprenant : - une vitre externe (103) et une vitre interne (105) qui sont raccordées l'une à l'autre sur leurs surfaces par l'intermédiaire d'une couche intermédiaire (111) ; - un élément fonctionnel électrochrome (107) ayant des propriétés optiques régulables électriquement à l'intérieur de la couche intermédiaire (111), la transmission d'énergie solaire totale (TTS) étant plus élevée à l'état sombre qu'à l'état éclairé et/ou la transmission d'énergie (TE) étant plus élevée à l'état sombre qu'à l'état éclairé dans l'élément fonctionnel ; et - une couche de protection contre les infrarouges (109) qui présente au moins une couche contenant de l'argent et qui est appliquée ou disposée sur la surface interne de la vitre interne (105) faisant face à la couche intermédiaire (111), sur la surface interne de la vitre externe (103) faisant face à la couche intermédiaire (111), ou à l'intérieur de la couche intermédiaire (111), ladite couche de protection contre les infrarouges coopérant avec l'élément fonctionnel électrochrome (107) de telle sorte que la transmission d'énergie solaire totale (TTS) à travers la vitre composite (100) est plus faible à l'état sombre qu'à l'état éclairé et/ou la transmission d'énergie (TE) à travers la vitre composite (100) est plus faible à l'état sombre qu'à l'état éclairé.
EP21766619.7A 2020-09-28 2021-08-24 Vitre composite dotée de propriétés optiques régulables électriquement Pending EP4217197A1 (fr)

Applications Claiming Priority (2)

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EP20198615 2020-09-28
PCT/EP2021/073324 WO2022063505A1 (fr) 2020-09-28 2021-08-24 Vitre composite dotée de propriétés optiques régulables électriquement

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EP4217197A1 true EP4217197A1 (fr) 2023-08-02

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EP (1) EP4217197A1 (fr)
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Publication number Priority date Publication date Assignee Title
US5321544A (en) 1991-09-04 1994-06-14 Sun Active Glass Electrochromics, Inc. Electrochromic structures and methods
US5404244A (en) 1992-04-10 1995-04-04 Sun Active Glass Electrochromics, Inc. Electrochromic structures and methods
US7372610B2 (en) 2005-02-23 2008-05-13 Sage Electrochromics, Inc. Electrochromic devices and methods
US7593154B2 (en) 2005-10-11 2009-09-22 Sage Electrochromics, Inc. Electrochromic devices having improved ion conducting layers
US9007674B2 (en) 2011-09-30 2015-04-14 View, Inc. Defect-mitigation layers in electrochromic devices
FR2962818B1 (fr) 2010-07-13 2013-03-08 Saint Gobain Dispositif electrochimique a proprietes de transmission optique et/ou energetique electrocommandables.
US8164818B2 (en) 2010-11-08 2012-04-24 Soladigm, Inc. Electrochromic window fabrication methods
WO2017102900A1 (fr) 2015-12-16 2017-06-22 Saint-Gobain Glass France Vitrage raccordable électriquement comprenant des électrodes de surface avec une conductivité anisotrope
CA3062469A1 (fr) 2017-05-09 2019-11-05 Saint-Gobain Glass France Disque presentant un revetement electro-conducteur et une visibilite reduite des traces de doigts
MA50982A (fr) * 2017-12-05 2020-10-14 Saint Gobain Vitre composite avec revêtement de protection solaire et revêtement réfléchissant les rayons calorifiques

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CN114616099A (zh) 2022-06-10
US20230258995A1 (en) 2023-08-17

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