• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    the present invention relates to a composite glazing (100) with a capacitive switching region (10) comprising at least:- a substrate (1), - at least a first intermediate layer (2), which is extensively joined to the substrate (1), - at least one second intermediate layer (3,3?), which is extensively joined to the first intermediate layer (2), and - an outer glazing (4), which is extensively joined to the second intermediate layer (3,3?), in which a carrier film (5) having an electrically conductive layer (6) is disposed, at least in sections, between the first intermediate layer (2) and the second intermediate layer (3.3? ), a capacitive switching region (10) is electrically separated from the electrically conductive layer (6) by at least one coating-free dividing line (7), the capacitive switching region (10) has a contact region (11) , a feed region (12), and a connecting region (13), with the feed region (12) being electrically connects the contact region (11) to the connection region (13) and the connection region (13) is electrically connectable to the sensor electronics (14), and the surface capacitance (ci) between the contact region (11 ) and the outer surface (iv) of the substrate (1) is greater than the surface capacitance (ca) between the contact region (11) and the outer surface (i) of the outer pane (4).
    公开号:BR112017011348B1
    申请号:R112017011348-1
    申请日:2016-01-15
    公开日:2021-06-15
    发明作者:Patrick Weber；Stefan Droste
    申请人:Saint-Gobain Glass France；
    IPC主号:
    专利说明:

    [0001] The invention relates to a composite glazing with a capacitive switching zone, a glazing arrangement, a method for producing the composite glazing, and its use.
    [0002] It is known that the switching zones can be formed by a surface electrode or by an arrangement of two coupled electrodes, for example, as capacitive switching zones. When an object approaches the switching zone, the capacitance of the surface electrode against the ground or the capacitance of the capacitor formed by the two coupled electrodes changes. Such switching zones are known, for example, from documents no. US 2010/179725 A1, no. US 6 654 070 B1, and no. US 2006/275599 A1.
    [0003] Capacitance change is measured by a circuit arrangement or sensor electronics, and when a threshold value is exceeded, a switching signal is triggered. Circuit arrangements for capacitive switching are known, for example, from documents no. DE 20 2006 006 192 U1, no. EP 0 899 882 A1, no. US 6,452,514 B1, and no. EP 1 515 211 A1.
    [0004] The aim of the present invention is to provide an improved composite glazing, which has a capacitive switching zone, which can be simply and economically integrated to the composite glazing and does not impair or little harm to vision through the glazing. With the capacitive switching zone, a contact sensor can be formed in a simple way.
    [0005] The object of the present invention is fulfilled according to the invention by a composite glazing with a switching zone, according to independent claim 1. Preferred embodiments emerge from the sub-claims.
    [0006] The composite glazing, according to the invention, with a capacitive switching zone comprises at least the following characteristics: - a substrate, - at least a first intermediate layer, which is bonded in area to the substrate, - at at least one second intermediate layer, which is area bonded to the first intermediate layer, and - a cover glazing, which is area bonded to the second intermediate layer, wherein - a carrier film with an electrically conductive layer is disposed, by except in sections between the first intermediate layer and the second intermediate layer, - a capacitive switching zone is electrically isolated from the electrically conductive layer by at least one coating-free separation line, - the capacitive switching zone has a contact zone, a power line zone, and a connection zone; the power line zone electrically connects the contact zone to the connection zone, and the connection zone is electrically connectable to the sensor electronics, and - the surface capacitance cI between the contact zone and the outer surface of the substrate is greater than the surface capacitance cA between the contact zone and the outer surface of the cover glazing.
    [0007] The surface capacitance cI or cA is defined as the capacitance of a plate capacitor from that zone of the composite glazing that results from the orthogonal projection of the contact zone between the contact zone and the outer surface of the substrate or surface outside of the cover glazing, with the resulting capacitance normalized over the area of the contact zone. Here, the term “outer surface” means the surface of the composite glazing facing outwards, ie away from the composite glazing. Consequently, “internal surface” means the surface of the substrate or the covering glazing that faces the interior of the composite glazing and is connected in area to an intermediate layer.
    [0008] The surface capacitance is, therefore, the capacitance of the entire layer sequence (coating) normalized over the area (and, in particular, over the aforementioned orthogonal projection area) between the electrically conductive layer and the respective external surface of composite glazing.
    [0009] In an advantageous embodiment of the invention, the ratio between length lZ and width bZ of the feed line zone is less than or equal to 1:700 and preferably from 1:1 to 1:100. In the context of the present invention, when the feed line zone does not have a constant width bZ, for example when it is implanted in the shape of a trapezoid or a droplet, the term "width bZ" means the average width of the line zone of food.
    [0010] The length z of the feed line zone is preferably from 1 cm to 70 cm and particularly preferably from 3 cm to 8 cm. The width bZ of the feed line zone is preferably from 0.5 mm to 10 mm and particularly preferably from 0.5 mm to 2 mm. The feed line zone is preferably shaped like a rectangle, a strip or a line.
    [0011] In an advantageous embodiment of the composite glazing, according to the invention, the connection zone is arranged on the outer edge of the glazing. The distance from the outer edge is preferably less than 10 cm, particularly preferably less than 0.5 cm. This makes it possible to hide an electrical contact from the connection zone, for example to a foil conductor, under an optically inconspicuous black print or with a cover, for example a camera housing.
    [0012] In an advantageous embodiment of the switching zone, according to the invention, the contact zone has an area of from 1 cm2 to 200 cm2, particularly preferably from 1 cm2 to 9 cm2. The length IB of the contact zone is preferably from 1 cm to 14 cm and particularly preferably from 1 cm to 3 cm. The maximum width bB of the contact zone is preferably from 1 cm to 14 cm and particularly preferably from 1 cm to 3 cm. The contact zone can, in principle, have any shape. Particularly suitable contact zones are implanted in a circular, elliptical or drop shape. Alternatively, angular shapes are possible, for example triangles, squares, rectangles, trapezoids or other types of quadrangles or polygons of a higher order. It is generally particularly advantageous for any corners to be rounded. This is true for all regions of the switching zone, in particular the transition zone between the contact zone and the supply line zone and/or the supply line zone and the connection zone. It is particularly advantageous for the corners to have a radius of curvature of at least 3 mm, preferably at least 8 mm.
    [0013] In another advantageous mode of the switching zone, according to the invention, the ratio between the feed line zone width bZ and the maximum contact zone width bB is at least 1:2 and in particular , at least 1:10. In this way, it was possible to obtain particularly satisfactory switching results.
    [0014] In an advantageous embodiment of the glazing according to the invention, the width ti of the separation lines is from 30 μm to 200 μm and preferably from 70 μm to 140 μm. Such fine separation lines allow for a reliable and suitably high electrical isolation, and at the same time, they only interfere with little or no vision through the composite glazing.
    [0015] The switching zone is a capacitive switching zone, in other words, it is specially implemented for capacitive contact detection. In an advantageous embodiment, the switching zone forms a surface electrode. Surface electrode capacitance is measured using external capacitance sensor electronics. The surface electrode's capacitance changes against the ground if an object (eg a human body) comes close to or, for example, touches an insulating layer above the surface electrode. The insulating layer in particular comprises the substrate itself. Capacitance change is measured by the sensor electronics; and when a threshold value is exceeded, a switching signal is triggered. The switching zone is defined by the shape and size of the surface electrode.
    [0016] The region of the electrically conductive layer that is disposed outside the capacitive switching zone - hereinafter called the "surrounding zone" - may be connectable to the sensor electronics via another connection zone.
    [0017] In such an arrangement, the capacitive switching zone and the surrounding zone form two electrodes which are capacitively coupled to each other. The capacitance of the capacitor formed by the electrodes is changed by the approach of an object, for example, a part of the human body. Capacitance change is measured by sensor electronics and when a threshold value is exceeded a switching signal is triggered. The sensitive zone is defined by the shape and size of the zone to which the electrodes are capacitively coupled.
    [0018] The capacitive switching zone according to the invention and, optionally, the surrounding zone, are integrated into the composite glazing according to the invention. In this way, no switching or the like is necessary, as a separate component that needs to be mounted in the composite glazing. The composite glazing preferably does not have any other components that are disposed in the transparent zone on its surfaces. This is particularly advantageous in relation to the thin construction of the composite glazing as well as a slight interference with vision through the composite glazing.
    [0019] An advantageous aspect of the invention comprises a glazing arrangement with a composite glazing, according to the invention, and sensor electronics, which are electrically connected to the capacitive switching zone through the connection zone and optionally to the surrounding surface through another connection zone. Sensor electronics are capacitive sensor electronics.
    [0020] In an advantageous embodiment of the circuit arrangement according to the invention, the sensitivity of the sensor electronics is selected so that the sensor electronics emit a switching signal when the contact zone on the substrate is touched by a finger human and do not emit a switching signal or a different switching signal when the contact zone on the cover glass is touched. Of course, touching the contact zone can also be done with multiple fingers or a different part of the human body. In the context of this invention, “touch” means any interaction with the switching zone that results in a measurable change in the measurement signal, ie, in this case, the capacitance. In particular, this is touching an outer surface of the composite glazing to a zone generated by orthogonally projecting the contact zone on the outer surface.
    [0021] In an advantageous embodiment of the composite glazing, according to the invention, the ratio between the surface capacitance cI and the surface capacitance cA is greater than or equal to 1.1:1, preferably greater than or equal to 1.2 :1. For such reasons, the touch of the external surface of the substrate can already be readily distinguished from the touch of the external surface of the cover glazing.
    [0022] The switching signals emitted can be of any type and adapted to the requirements of the respective use. Thus, the switching signal can mean a positive voltage, for example 12 V, no switching signal can mean, for example, 0 V, and another switching signal can mean, for example, + 6 V. switching can also correspond to the usual CAN_High and CAN_Low voltages with a CAN Bus and change by a voltage value between them. The switching signal can also be pulsed and/or converted to digital mode code.
    [0023] The sensitivity of sensor electronics can be determined as a function of the size of the contact zone and as a function of substrate thickness, intermediate layers, and cover glass in the context of simple experiments.
    [0024] The particular advantage of such a glazing arrangement according to the invention resides in that the switching signal can be activated only by touching the composite glazing from one of the external surfaces. In the case of a use of the glazing arrangement in a motor vehicle window and installation of the composite glazing with the substrate side towards the vehicle interior, it is possible, for example, to reliably prevent triggering of the switching operation by individuals from the outside or an unintended trigger of the changeover operation by rain or the movement of the windshield wiper, without fundamentally changing the customary glazing construction for laminated safety glass. This was unexpected and surprising to the person skilled in the art.
    [0025] In combination with the described glazing arrangement or alternatively, the sensitivity of the sensor electronics can be selected so that a switching signal is emitted when the contact zone on the substrate and/or on the covering glazing is touched by a human finger and no switching signal or a different switching signal is emitted when the feed line zone on the substrate and/or the cover pane is touched.
    [0026] The sensitivity of sensor electronics can be determined as a function of the size of the contact zone and as a function of geometry, as well as the aspect ratio between width and length of the feedline zone in the context of simple experiments. It is particularly advantageous for the width of the feed line zone to be selected as small as possible.
    [0027] The particular advantage of this modality of a glazing arrangement according to an invention lies in the fact that the switching signal can be activated only by touching the outer surface of the composite glazing through the contact zone or its immediate surroundings and in that way precise control of the switching operation is possible, and, for example, inadvertent switching is prevented.
    [0028] In an advantageous improvement of a glazing arrangement according to the invention, the connection zone is connected to a flat conductor and the flat conductor is guided away from the glazing. The integrated glazing arrangement can then be connected privately and simply, at the place of use, to a voltage source and a signal line which evaluates the switching signal of the sensor circuit, for example by means of a Bus CAN in a vehicle.
    [0029] In principle, all electrically insulating substrates which are chemically or thermally stable, as well as dimensionally stable under the conditions of production and use of the composite glazing according to the invention are suitable as substrate and covering glazing.
    [0030] The substrate and/or the cover glass preferably contains glass, particularly and preferably flat glass, float glass, quartz glass, borosilicate glass, sodium-calcium glass, or transparent plastics, preferably rigid transparent plastics, in particular, polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyesters, polyvinyl chloride, and/or mixtures thereof. The substrate and/or the cover glazing is preferably transparent, in particular for use of the glazing as a windshield or rear window of a vehicle or other uses where high light transmittance is desired. In the context of the invention, "transparent" means a glazing that has a transmittance greater than 70% in the visible spectral range. However, for glazing that are not situated in the field of vision relevant to the driver's traffic, eg for roof panels, the transmittance can be much lower, eg greater than 5%.
    [0031] The thickness of the substrate and/or the covering glazing can vary widely and be ideally adapted to the requirements of the individual case. Preferably, standard thicknesses from 1.0 mm to 25 mm, preferably from 1.4 mm to 2.5 mm, are used for motor vehicle glass and preferably from 4 mm to 25 mm for furniture, devices, and constructions , in particular, for electric heaters. The size of the glazing can vary widely and is governed by the size of use according to the invention. The substrate and, optionally, the covering glazing have, for example, in motor vehicle engineering and in the architectural sector, the usual areas of 200 cm2up to 20 m2.
    [0032] The composite glazing can have any three-dimensional shape. Preferably, the three-dimensional shape has no shadow areas so that it can, for example, be coated by sputtering. Preferably, the substrates are flat or slightly or heavily curved in one or a plurality of spatial directions. In particular, flat substrates are used. Window panes can be either colorless or tinted.
    [0033] The substrate and/or the covering glazing preferably has the relative permittivity εr,1/4 from 2 to 8 and particularly and preferably from 6 to 8. With such relative permittivities, it was possible to obtain a particularly satisfactory differentiation between the touch of the contact surface through the outer surface of the substrate compared to the outer surface of the cover glazing.
    [0034] The substrates and/or the covering glazing are bonded together by at least a first and a second intermediate layer. The intermediate layer is preferably transparent. The intermediate layer preferably contains at least one plastic, preferably polyvinyl butyral (PVB), ethylene vinyl acetate (EVA) and/or polyethylene terephthalate (PET). The intermediate layer can, however, also contain, for example, polyurethane (PU), polypropylene (PP), polyacrylate, polyethylene (PE), polycarbonate (PC), polymethyl methacrylate, polyvinyl chloride, polyacetate resin, casting resins , acrylates, fluorinated ethylene propylenes, polyvinyl fluoride, and/or ethylene tetrafluoroethylene, or copolymers or mixtures thereof. The intermediate layer can be formed from one or even a plurality of films arranged on top of each other, with a film thickness preferably from 0.025 mm to 1 mm, typically 0.38 mm or 0.76 mm. The intermediate layers can preferably be thermoplastic, and, after lamination, adhesively bond the substrate, the cover glazing, and any other intermediate layers together. In a particularly advantageous embodiment of the composite glazing according to an invention, the first intermediate layer is implanted as an adhesive layer produced from an adhesive, with which the carrier film is adhesively bonded to the substrate. In this case, the first intermediate layer preferably has the dimensions of the carrier film.
    [0035] The intermediate layer preferably has the relative permittivity of 2 to 4 and particularly and preferably from 2.1 to 2.9. With such relative permittivities, it was possible to obtain a particularly satisfactory differentiation between the touch of the contact surface via the outer surface of the substrate compared to the outer surface of the cover glazing.
    [0036] The carrier film according to an invention is preferably transparent. It preferably contains or is produced from a polyethylene terephthalate (PET) film. The thickness of the carrier film is preferably 0.025 mm to 0.1 mm. The carrier film preferably has a relative permittivity of from 2 to 4 and particularly preferably from 2.7 to 3.3. Particularly satisfactory composite glazing can be produced with such carrier films due to the fact that such thin carrier films can be seamlessly, readily and optically integrated into the composite glazing even with only a section arrangement. At the same time, satisfactory and selective switching signals can be generated. The electrically conductive layer according to the invention is preferably arranged on a surface of the carrier film, in other words on precisely one of the two sides of the carrier film (ie on its front side or its back side).
    [0037] The terms "substrate" and "covering pane" are selected to differentiate the two panes of a composite pane, according to the invention. No statement about geometric arrangement is associated with the terms. When the composite glazing according to the invention is provided, for example, in an opening, for example, of a vehicle or a building, to separate the interior from the external environment, the substrate may be facing towards the interior or the external environment.
    [0038] The electrically conductive layer preferably contains an electrically transparent conductive coating. Here, "transparent" means permeable to electromagnetic radiation, preferably electromagnetic radiation of a wavelength of 300 nm to 1,300 nm and, in particular, visible light.
    [0039] The electrically conductive layers according to the invention are known, for example, from documents No. DE 20 2008 017 611 U1, No. EP 0 847 965 B1, or No. WO2012/052315 A1. They typically contain one or a plurality, for example, two, three, or four electrically conductive functional layers. The functional layers preferably contain at least one metal, for example silver, gold, copper, nickel, and/or chromium, or a metal alloy. The functional layers particularly preferably contain at least 90% by weight of the metal, in particular at least 99.9% by weight of the metal. Functional layers can be made of metal or metal alloy. The functional layers particularly preferably contain silver or a silver-containing alloy. Such functional layers have a particularly advantageous electrical conductivity with, at the same time, high transmittance in the visible spectral range. The thickness of a functional 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 functional layer, advantageously high transmittance in the visible spectral range and particularly advantageous electrical conductivity are obtained.
    [0040] Typically, at least one dielectric layer is arranged in each case between two adjacent functional layers. Preferably, another dielectric layer is disposed below the first and/or above the last functional layer. The dielectric layer includes at least one individual layer produced from a dielectric material, for example, which contains a nitride such as silicon nitride or an oxide such as aluminum oxide. However, the dielectric layer can also include a plurality of individual layers, for example, individual layers of a dielectric material, smoothing layers, adaptive layers, blocking layers, and/or anti-reflective layers. The thickness of a dielectric layer is, for example, 10 nm to 200 nm.
    [0041] This layer structure is, in general, obtained by a sequence of deposition operations that are performed by a vacuum method, such as magnetically enhanced sputtering.
    [0042] Other suitable electrically conductive layers preferably contain indium-tin oxide (ITO), fluorine-doped tin oxide (SnO2:F), or aluminum-doped zinc oxide (ZnO:Al).
    [0043] The electrically conductive layer can be, in principle, any coating that can make electrical contact. If the glazing, according to the invention, is intended to enable vision through it, as is, for example, the case in glazing in the window sector, the electrically conductive layer is preferably transparent. In an advantageous embodiment, the electrically conductive layer is a layer or a layer structure of multiple individual layers with an overall thickness less than or equal to 2 □, particularly preferably less than or equal to 1 .
    [0044] An advantageous transparent electrically conductive layer, according to the invention, has blade resistance of 0.4 ohm/square to 200 ohm/square. In a particularly preferred embodiment, the electrically conductive layer according to the invention has a blade resistance of 0.5 ohm/square to 20 ohm/square. Coatings with such blade resistances are particularly suitable for heating motor vehicle glazing with typical built-in voltages from 12 V to 48 V or with electric vehicles with typical built-in voltages up to 500 V.
    [0045] The electrically conductive layer can extend over the entire surface of one side of the carrier film. However, alternatively, the electrically conductive layer may also extend over only a portion of the carrier film surface. The electrically conductive layer can have one or a plurality of uncoated zones. These zones can be permeable to electromagnetic radiation and are, for example, known as data transmission windows or communication windows.
    [0046] In an advantageous embodiment of a composite glazing according to an invention, the electrically conductive layer is arranged indented from the edge of the composite glazing for a width of 2 mm to 50 mm, preferably 5 mm to 20 mm . The electrically conductive layer then has no contact with the atmosphere and is advantageously protected, by the intermediate layers inside the composite glazing, against damage and corrosion.
    [0047] The electrical supply line is preferably deployed as a sheet metal conductor or a flexible sheet metal conductor (flat conductor, flat band conductor). The term “Sheet Metal Conductor” means an electrical conductor whose width is clearly greater than its thickness. Such a foil conductor is, for example, a strip or a band that contains or is produced from copper, tinned copper, aluminum, silver, gold, or alloys thereof. The sheet metal conductor has, for example, a width of 2 mm to 16 mm and a thickness of 0.03 mm to 0.1 mm. The foil conductor may have an insulating shell preferably polymeric, for example based on polyimide. Sheet metal conductors which are suitable for contacting electrically conductive coatings on glazing have a total thickness of, for example, merely 0.3 mm. Such thin sheet metal conductors can be embedded without difficulty between the individual panes in the thermoplastic intermediate layer. Multiple electrically insulated conductive layers may be located on a strip of foil conductor.
    [0048] Alternatively, thin metal wires can also be used as an electrical supply line. Metal wires contain, in particular, copper, tungsten, gold, silver, or aluminum or alloys of at least two of these metals. Alloys can also contain molybdenum, rhenium, osmium, iridium, palladium or platinum.
    [0049] The electrical line connection between the electrically conductive layer connection zones on the carrier film and the electrical supply line is preferably made by means of electrically conductive adhesives, which enable a reliable and durable electrical line connection between the zone connection and the power line. Alternatively, the electrical line connection can also be made by snapping, as the snapping connection is securely secured against slippage by the lamination procedure. Alternatively, the feed line can also be printed on the connection zone, for example by means of an electrically conductive printing paste which contains metal and, in particular, which contains silver.
    [0050] In an advantageous embodiment of the invention, the composite glazing, according to the invention, has a light irradiating means and a light deflecting means. The light radiating means and the light deflecting means are disposed on or on the substrate and/or on the cover glazing or between the intermediate layers or the carrier film.
    [0051] According to the invention, the light irradiating means comprises at least one light source, preferably an LED or OLED. The particular advantage lies in the small dimensions and low power consumption. The wavelength range emitted by the light source can be freely selected in the visible light range, for example, based on practical and/or aesthetic considerations. The light irradiating means may include optical elements, in particular to guide the light, preferably a reflector and/or a waveguide, for example a glass fiber or a polymeric optical fiber. The light radiating means can be arranged at any location on the substrate or on the cover glazing, in particular on the side edge of the substrate or on the cover glazing or in a small recess in the middle of the substrate or on the cover glazing.
    [0052] The light deflection means preferably includes particles, grids of dots, adhesives, deposits, knots, incisions, grids of lines, prints, and/or screen prints and is suitable for decoupling the light carried in the substrate or in the glazing coverage of it.
    [0053] The light deflection means can be arranged in any position at the level of the substrate or the covering glazing. It is particularly advantageous for the light deflection means to be arranged in the region of or in the immediate vicinity of the contact zone and for enabling, in this way, quick finding of the otherwise hardly visible contact zone. This is particularly advantageous at night or in the dark.
    [0054] Alternatively, light can be introduced into the contact zone through a waveguide that is disposed on the substrate, in the intermediate layer, or in the covering pane and can mark the contact zone.
    [0055] Alternatively or in combination, the light radiating means together with the light deflecting means can visualize the data in the glazing, for example, report the switching state of the capacitive switching zone or indicate, for example, whether a electrical function is turned on or off.
    [0056] In an advantageous alternative embodiment of the composite glazing according to the invention, the contact zone is directly capable of marking or marked by an active light source, preferably by a light-emitting diode (LED), a light-emitting diode organic light (OLED), an incandescent lamp, or other active luminaire, such as a luminescent material, preferably a fluorescent or phosphorescent material.
    [0057] In another advantageous alternative embodiment of the composite glazing according to the invention, the contact zone is marked by a colored print, preferably white or black, for example, a screen print, on the transparent substrate, on the intermediate layer, or on the cover glazing. This has the particular advantage that the contact zone is durably marked and independent of a voltage source. The print may also contain a luminescent material, preferably a fluorescent or phosphorescent material and/or be luminescent.
    [0058] Another aspect of the invention comprises a method for producing a composite glazing with a capacitive switching zone comprising at least: (a) Application of an electrically conductive layer on a surface of a carrier film, (b) Introduction of at least a separation line, which electrically divides the electrically conductive layer into at least one capacitive switching zone and forms at least one surrounding zone, preferably by laser patterning or mechanical or chemical ablation; and (c) Production of a sequence of stacks consisting of a substrate, a first intermediate layer, a second intermediate layer and a covering glazing, in which the carrier film is disposed, at least in sections, between the first intermediate layer and the second intermediate layer, and (d) Lamination of the stack sequence to form a composite glazing.
    [0059] The application of the electrically conductive layer in process step (a) can be done by a method known per se, preferably by magnetically enhanced sputtering. This is particularly advantageous in terms of simple, fast, economical and uniform coating of the substrate. However, the electrically conductive layer can also be applied, for example, by vapor deposition, chemical vapor deposition (CVD), plasma enhanced chemical vapor deposition (PECVD), or by wet chemical processes.
    [0060] The carrier film can be subjected to a temperature treatment after process step (a). The carrier film is heated together with the electrically conductive layer to a temperature of at least 200°C, preferably at least 300°C. Temperature treatment can also serve to increase transmittance and/or reduce the blade resistance of the electrically conductive layer.
    [0061] The coating removal of individual separation lines in the electrically conductive layer is preferably done by laser beam. Methods for standardizing metal films are known, for example, from documents no. EP 2 200 097 A1 or no. EP 2 139 049 A1. The coating removal width is preferably 10 µm to 1000 µm, particularly preferably 30 µm to 200 µm, and in particular 70 µm to 140 µm. In this range, a particularly transparent and residue-free coating removal by the laser beam takes place. Laser beam coating removal is particularly advantageous as the coating removed lines are optically very imperceptible and impact appearance and transparency only a little. Decoating a line with a width that is wider than the width of a laser cut is done by repeatedly tracking the line with the laser beam. Consequently, process duration and process costs increase with increasing line width. Alternatively, coating removal can be done by mechanical ablation as well as chemical or physical etching.
    [0062] The first or second intermediate layer can be formed by a single film or even by two or more films that are arranged in area one over the other.
    [0063] The connection of the substrate and the cover glazing in the process step (d) is preferably done under the action of heat, vacuum, and/or pressure. Methods known per se for producing a composite glazing can be used.
    [0064] For example, so-called autoclave methods can be carried out at an elevated pressure of approximately 1 MPa (10 bar) to 1.5 MPa (15 bar) and temperatures of 130 °C to 145 °C for approximately 2 hours. The vacuum bag or ring methods known per se operate, for example, at approximately 0.02 MPa (200 mbar) and 80°C to 110°C. The first glazing, the thermoplastic intermediate layer, and the second glazing can also be pressed in a calender between at least one pair of rollers to form a glazing. Systems of this type are known to produce glazing and normally have at least one heating tunnel upstream before a pressing plant. The temperature during the pressing procedure is, for example, 40 °C to 150 °C. Combinations of calender and autoclave processes have particularly proven their value in practice. Alternatively, vacuum laminators can be used. They consist of one or a plurality of heatable and evacuable chambers, in which the first glazing and the second glazing are laminated, for example, for approximately 60 minutes at reduced pressures from 1 Pa (0.01 mbar) to 0.08 MPa ( 800 mbar) and temperatures from 80 °C to 170 °C.
    [0065] Another aspect of the invention comprises the use of electrically heatable glazing with a capacitive switching zone, according to the invention, in buildings, in particular in the access area, window area, ceiling area, or facade area, such as an integrated component in furniture and devices, in means of transport for travel on land, in the air, or in water, in particular, in trains, boats, and motor vehicles, for example, as a windshield, rear window, side window , and/or ceiling panel.
    [0066] The invention further comprises the use of the capacitive switching zone for the electrical control of a function inside or outside the composite glazing, preferably a heating function, lighting, in particular, a lighting means disposed in the composite glazing, such as a LED, a change in optical transparency of a functional intermediate layer, in particular, a suspended particle device (SPD) layer or an electrochromic intermediate layer.
    [0067] In the following, the invention is explained in detail with reference to the drawings and exemplary embodiments. The drawings are a schematic representation and are not faithful to scale. The drawings in no way restrict the invention.
    [0068] They represent:
    [0069] Figure 1A is a plan view of an embodiment of a glazing arrangement, according to the invention, with a composite glazing, according to the invention,
    [0070] Figure 1B a cross-sectional representation along section line A-A' of Figure 1A,
    [0071] Figure 1C an enlarged representation of the carrier film, according to the invention, of Figure 1A,
    [0072] Figure 1D a cross-sectional representation along section line B-B' of Figure 1C,
    [0073] Figure 2A is a plan view of an alternative embodiment of the glazing arrangement, according to the invention, with a composite glazing, according to the invention,
    [0074] Figure 2B a cross-sectional representation along section line A-A' of Figure 2A,
    [0075] Figure 2C an enlarged representation of the carrier film, according to the invention, of Figure 2A,
    [0076] Figure 2D a cross-sectional representation along section line B-B' of Figure 2C, and
    [0077] Figure 3 is a detailed flowchart of an embodiment of the method, according to the invention.
    [0078] Figure 1A represents a plan view of an exemplary embodiment of a glazing arrangement 101, according to the invention, with a composite glazing 100, according to the invention.
    [0079] Figure 1B is a cross-sectional representation along section line A-A' of Figure 1A. The composite glazing 100 here comprises, for example, a substrate 1 and a covering glazing 4 which are bonded together by means of a first intermediate layer 2 and a second intermediate layer 3. The composite glazing 100 is, for example, a glazing of a motor vehicle and, in particular, the windshield of a passenger car. The dimensions of the composite glazing 100 are, for example, 0.9 m x 1.5 m. The substrate 1 is, for example, intended to be turned inwards in the installed position. In other words, the outer surface IV of substrate 1 is accessible from the inside; meanwhile, in contrast, the outer surface I of the cover glazing 4 is facing outwards with respect to the interior vehicle. The substrate 1 and the covering glass 4 are made, for example, of soda-lime glass. The thickness d1 of the substrate 1 is, for example, 1.6 mm and the thickness d4 of the covering pane 4 is 2.1 mm. Obviously, the substrate 1 and the covering glazing 4 can have any thickness, and, for example, they can also be implanted with the same thickness. Interlayers 2,3 are thermoplastic interlayers and are made of polyvinyl butyral (PVB). They have, in each case, a thickness d2/3 of 0.38 mm. A carrier film 5 with a capacitive switching zone 10 is disposed between the first intermediate layer 2 and the second intermediate layer 3 in the central lower section of the composite glazing 100.
    [0080] Figure 1C represents an enlarged representation of the carrier film 5, according to the invention, of Figure 1A. Figure 1D represents a corresponding cross-sectional representation along section line B-B' of Figure 1C.
    [0081] The carrier film 5 is, in this example, a transparent polyethylene terephthalate (PET) film with a d5 thickness of 0.05 mm. A transparent electrically conductive layer 6 is disposed on the carrier film 5. The electrically conductive layer 6 is a layer system that includes, for example, three electrically conductive silver layers that are separated from each other by dielectric layers.
    [0082] The electrically conductive layer 6 extends, for example, over an entire side of the carrier film 5. In the exemplary embodiment shown, the electrically conductive layer 6 is disposed on that side of the carrier film 5 that faces the substrate 1. Carrier film 5 is indented a distance of approximately 8 mm from the glazing edge into the glazing interior. This region is hermetically sealed by gluing the two intermediate layers 2,3 during the lamination so that the electrically conductive layer 6 is protected against the humidification of the adjacencies of the composite glazing 100 and thus against corrosion and damage. Alternatively, it would be possible to leave the carrier film coating 5 free in an edge region or to remove the electrically conductive layer 6 there.
    [0083] The electrically conductive layer 6 is divided by coating-free separation lines 7 into different zones electrically insulated from each other. In the example depicted in Figure 1C, two capacitive switching zones 10 are electrically divided by a common surrounding zone 15. Each switching zone 10 includes a contact zone 11, which is deployed approximately squarely and the transitions into a line zone feed length in strip form 12. The width bB and length lB of the contact zone 11 is in each case, for example, 40 mm. The width bZ of the feed line zone 12 is, for example, 1 mm. The ratio of bZ:bB is thus approximately 1:40. The supply line zone 12 is connected to a connection zone 13. The connection zone 13 has a square shape and an edge length bA of, for example, 12 mm. The length lZ of the feed line zone is approximately 48 mm.
    [0084] The separation line 7 has only a width ti of, for example, 100 µm and is introduced into the electrically conductive layer 6, for example, by laser patterning. The separation lines 7 with such a low width are hardly optically perceptible and interfere only slightly with vision through the composite glazing 100, which, particularly for use in motor vehicles, is of special importance for driving safety and is also particularly aesthetic.
    [0085] The connection zone 13 is electrically conductive connected to a foil conductor 17 by means of an electrical line connection 20. An electrically-reliable conductive connection is preferably obtained by means of an electrically conductive adhesive. The foil conductor 17 is made, for example, from a 50 µm thick copper foil and is, for example, insulated outside the connection zone 13 with a layer of polyimide. Thereby, the foil conductor 17 can be guided outward, without a short circuit, beyond the surrounding zone 15 onto the bottom edge of the composite glazing 100. Obviously, the electrical line connection from the connection zone to the side from the outside it can also be guided outwards by means of insulated wires or by means of a zone in which the electrically conductive layer of the surrounding zone is interrupted.
    [0086] Here, the foil conductor 17 is, for example, connected to capacitive sensor electronics 14 outside the composite glazing 100. In addition, the surrounding zone 15 is also connected to the sensor electronics 14 via another zone of connection 16. The sensor electronics 14 are suitable for precisely measuring the capacitance changes of the switching zone 10 with respect to the surrounding zone 15 and for routing a switching signal, for example, to the CAN bus of a motor vehicle as a function of a threshold value. Any functions in the motor vehicle can be switched via the switching signal. For example, lighting in or on composite glazing 100 can be turned on or off.
    [0087] When the composite glazing 100 is used, for example, as a windshield in a motor vehicle, the length of the power line zone 12 can be selected so that the driver of the vehicle or the previous seat passenger can comfortably reach the contact zone 11 of the switching zone 10.
    [0088] In the illustrated exemplary embodiment, the structure and tuning of the sensor electronics 14 are coordinated so that when the outer glazing surface IV of the substrate 1 is touched above the contact zone 11 of the capacitive switching zone 10, a switching signal is triggered, while when an outer glazing surface I of the covering glazing 4 is touched over the capacitive switching zone 10, no switching signal is triggered. To this end, the thicknesses and materials of the composite glazing according to the invention 100 are selected, according to the invention, so that the surface capacitance cI between the contact zone 11 and the outer surface IV of the substrate 1 is greater than the surface capacitance cA between the contact zone 11 and the outer surface I of the covering pane 4.
    [0089] The surface capacitance cI or cA is, in the context of the present invention, defined as the capacitance of a plate capacitor of that zone of the composite glazing 100 that results from the orthogonal projection of the contact zone 11 between the contact zone 11 and the outer surface IV of the substrate 1 or the outer surface I of the cover glazing 4, with the resulting capacitance normalized to the area of the contact zone.
    [0090] In the example depicted in detail in Figure 1B, the surface capacitance cI between the contact zone 11 and the outer surface IV of substrate 2 results in the series connection of the individual capacitances (1/c1+1/c2)-1 , with the individual capacitance resulting in ci=ε0*εr,i/di. This corresponds to the capacitance Ci of the respective individual layer with relative permittivity εr,i and thickness di, normalized to the area A of the contact zone 11, ie, ci=Ci/A.
    [0091] Furthermore, the surface capacitance cI between the contact zone 11 and the outer surface I of the covering pane 4 results in the series connection of the individual capacitances (1/c3+1/c4+1/c5)-1 .
    [0092] The relative permittivity of substrate 1 and covering glazing 4 are, here, for example, εr,1= εr,4=7; the relative permittivity of the first intermediate layer 2 and the second intermediate layer 3 are, here, for example, εr,2= εr,3=2.6; and the relative permittivity of the carrier film 5 is, here, for example, εr,5=3.
    [0093] This yields a ratio of the surface capacitances cI:cA of 1.2:1.
    [0094] Furthermore, in this example, the area A of the contact zone 11 and in particular its width bB is coordinated with the width bZ of the power line zone 12, so that a switching signal is emitted only when the outer surface IV of the substrate is touched above the contact zone 11 (i.e. in the region of the surface IV that results from the orthogonal projection of the contact zone 11 on the surface IV) and not when the surface IV above the line zone 12 power supply is played.
    [0095] Figure 2A represents a plan view of an alternative exemplary embodiment of a glazing arrangement 101, according to the invention, with the composite glazing 100, according to the invention.
    [0096] Figure 2B is a cross-sectional representation along section line A-A' of Figure 2A. The composite glazing 100 here comprises, for example, a substrate 1 and a covering glazing 4 which are bonded together by means of a first intermediate layer 2 and a second intermediate layer 3. The composite glazing 100 is, for example, a glazing of motor vehicle and, in particular, the roof panel of a passenger car. The dimensions of the composite glazing 100 are, for example, 1.2 m x 1.2 m. The substrate 1 is, for example, intended to be turned inwards in the installed position. In other words, the outer surface IV of substrate 1 is accessible from the inside; meanwhile, in contrast, the outer surface I of the cover glazing 4 faces outwards. The substrate 1 and the covering glass 4 are made, for example, of soda-lime glass. The thickness d1 of substrate 1 is, for example, 2.1 mm; and the thickness d4 of the covering pane 4 is, for example, also 2.1 mm. In this exemplary modality, the second intermediate layer 3.3’ is implemented in two layers. The 2,3,3’ intermediate layers are thermoplastic intermediate layers and are made of polyvinyl butyral (PVB). They have, in each case, a thickness d2/3/3’ of 0.38 mm. A carrier film 5 with a capacitive switching zone 10 is disposed between the first intermediate layer 2 and the second intermediate layer 3 in the central lower section of the composite glazing 100.
    [0097] Figure 2C represents an enlarged representation of the carrier film 5, according to the invention, of Figure 2A. Figure 2D represents a corresponding cross-sectional representation along section line B-B' of Figure 2C.
    [0098] The carrier film 5 is, in this example, a transparent polyethylene terephthalate (PET) film with a d5 thickness of 0.05 mm. Here, the carrier film 5 has a length of, for example, 250 mm and a width of, for example, 120 mm. A transparent electrically conductive layer 6 is disposed on the carrier film 5. The electrically conductive layer 6 is a layer system that includes, for example, three electrically conductive silver layers that are separated from each other by dielectric layers.
    [0099] The electrically conductive layer 6 extends, for example, across the entire surface of one side of the carrier film 5, minus a 10 mm coating free edge strip 18 that faces the outer glazing edge of the composite glazing 100. This region is hermetically sealed by gluing the two intermediate layers 2,3 during lamination so that the electrically conductive layer 6 is protected against the humidification of the adjacencies of the composite glazing 100 and thus against corrosion and damage . In the exemplary embodiment shown, the electrically conductive layer 6 is disposed on the side of the carrier film 5 that faces the substrate 1.
    [00100] The electrically conductive layer 6 is divided by coating-free separation lines 7 into different zones electrically insulated from each other. In the example depicted in Figure 2C, four capacitive switching zones 10 are electrically divided by a common surrounding zone 15. Each switching zone 10 includes a contact zone 11, which is deployed approximately in a drop shape and transitions into a zone of strip-shaped feed line 12. The width bB and the length lB of the contact zone 11 is in each case, for example, 40 mm. The width bZ of the feed line zone 12 is, for example, 1 mm. The ratio of bZ:bB is thus approximately 1:40. The supply line zone 12 is connected to a connection zone 13. The connection zone 13 has a square shape with rounded corners and an edge length bA of, for example, 12 mm. The length lZ of the feed line zone is approximately 48 mm.
    [00101] The separation line 7 has only a width ti of, for example, 100 µm and is introduced into the electrically conductive layer 6, for example, by laser patterning. The separation lines 7 with such a low width are hardly optically perceptible and interfere only a little with the vision through the composite glazing 100, which, particularly for use in motor vehicles as a roof panel, is particularly aesthetic.
    [00102] The connection zone 13 is electrically conductive connected to a foil conductor 17 by means of an electrical line connection 20. An electrically conductive connection is preferably obtained by means of an electrically conductive adhesive. The foil conductor 17 is made, for example, from a 50 µm thick copper foil and is, for example, insulated outside the connection zone 13 with a layer of polyimide. Thereby, the foil conductor 17 can be guided outwards, without a short circuit, beyond the surrounding zone 15 on the bottom edge of the composite glazing 100. Obviously, the electrical connection of the connecting zone 13 on the outside it can also be guided outwards by means of insulated wires or by means of a zone in which the surrounding zone 15 is interrupted.
    [00103] Here, the foil conductor 17 is, for example, connected to capacitive sensor electronics 14 outside the composite glazing 100. In addition, the surrounding zone 15 is also connected to the sensor electronics 14 via another zone of connection 16. The sensor electronics 14 are suitable for precisely measuring the capacitance changes of the switching zone 10 with respect to the surrounding zone and for routing a switching signal, for example, to the CAN bus of a motor vehicle as a function of a threshold value. Any functions in the motor vehicle can be switched via the switching signal. For example, the composite glazing 100 may have a suspended particle device (SPD) layer, an electrochromic layer, or another type of layer or film to control optical transparency, which can be changed in its optical transparency by means of the signal. switching, here, for example, with four levels of transparency, which can in each case be selected by means of the four capacitive switching zones. Obviously, alternatively or additionally, other electrical functions such as electrical heating or electrical lighting can also be controlled.
    [00104] When composite glazing 100 is used, for example, as a roof panel in a motor vehicle, the length of the power line zone 12 can be selected so that the driver of the vehicle, the passenger of the previous seat, or passengers in the rear seat can comfortably reach the contact zone 11 of the switching zone 10. Obviously, for this purpose, multiple carrier films 5 can also be arranged on the composite glazing 100, for example, in each case, a carrier film 5 for each vehicle occupant.
    [00105] In the illustrated exemplary embodiment, the structure and tuning of the sensor electronics 14 are coordinated so that when the outer glazing surface IV of the substrate 1 is touched above the contact zone 11 of the capacitive switching zone 10, a switching signal is triggered, while when an outer glazing surface I of the covering glazing 4 is touched, no switching signal is triggered. This has the particular advantage that no switching signals can be triggered as a result of intentional or inadvertent touching of the composite glazing 100 from outside the motor vehicle. Furthermore, the inadvertent triggering of a switching signal, for example by rain or vehicle washing, is avoided. For this purpose, the thicknesses and materials of the composite glazing 100 according to the invention are selected, according to the invention, so that the surface capacitance cI between the contact zone 11 and the outer surface IV of the substrate 1 is greater than the surface capacitance cA between the contact zone 11 and the outer surface I of the covering pane 4.
    [00106] In the example depicted in detail in Figure 2B, the surface capacitance cI between the contact zone 11 and the outer surface IV of substrate 2 results in the series connection of the individual capacitances (1/c1+1/c2)-1 . Furthermore, the surface capacitance cI between the contact zone 11 and the outer surface I of the covering pane 4 results in the series connection of the individual capacitances (1/c3+1/c3'+1/c4+1/c5) -1. The relative permittivity of substrate 1 and covering glazing 4 here is, for example, εr,1= εr,4=7; the relative permittivity of the first intermediate layer 2 and the second intermediate layer 3.3’ here is, for example, εr,2=εr,3= εr,3’=2.6; and the relative permittivity of the carrier film 5 here is, for example, εr,5=3. This yields a ratio of the surface capacitances cI:cA of 1.4:1.
    [00107] Furthermore, in this example, the area A of the contact zone 11 and in particular its width bB is coordinated with the width bZ of the power line zone 12, so that a switching signal is emitted only when the outer surface IV of the substrate is touched above the contact zone 11 (i.e. in the region of the outer surface IV that results from the orthogonal projection of the contact zone 11 onto the outer surface IV) and not when the outer surface IV is touched above the power line zone 12.
    [00108] Figure 3 illustrates a flowchart of an exemplary embodiment of the method according to the invention for producing a composite glazing 100 with a capacitive switching zone 10.
    [00109] Table 1 illustrates the calculation of surface capacitance ratios cI:cA of five exemplary embodiments from Examples 1 to 5 for various material thicknesses and material parameters. The calculation of surface capacitances was presented in detail above under Figure 1 and Figure 2. Example 3 corresponds to the exemplary modality in Figure 1 and Example 1 corresponds to the exemplary modality in Figure 2. Table 1

    [00110] The composite glazings 100, according to the invention, have ratios between surface capacitances cI:cA greater than or equal to 1.1:1. With such reasons, it was possible to obtain particularly satisfactory differentiation between touching the contact surface 11 above the outer surface IV of the substrate 1 in contrast to the outer surface I of the covering pane 4.
    [00111] The composite glazing 100, according to the invention, according to Figure 1 and 2, has a capacitive switching zone 10, which is, for example, connectable to capacitive sensor electronics 14. Furthermore, due at the low width of the separation lines 7, the view through the glazing is only minimally affected and meets, for example, the requirements for motor vehicle glazing.
    [00112] Particularly advantageous and surprising a glazing arrangement 101 with a composite glazing 100, wherein the sensitivity of the sensor electronics 14 to the ratio of the surface capacitances cI:cA above the contact zones 11 is tuned to so that selective triggering of the switching operation is only possible from an external surface IV of the composite glazing 100.
    [00113] This result was unexpected and surprising to the person versed in the technique.
    [00114] Reference Character List: 1 substrate 2 first intermediate layer 3 ,3' second intermediate layer 4 cover glazing 5 carrier film 6 electrically conductive layer 7 separation line 10 capacitive switching zone 11 contact zone 12 line zone supply 13 connection zone 14 capacitive sensor electronics 15 surrounding zone 16 additional connection zone 17 foil conductor 18 sheath free edge strip 20 power line connection 100 composite glazing 101 glazing arrangement The area of the contact zone 11 bA connection zone width 13 bB contact zone width 11 bZ supply line zone width 12 ci, AC,C1...5 surface capacitance C1...5 capacitance d1,d2,d3,d3', d4,d5 thickness ε0 electric field constant εr,1, εr,2, εr,3, εr,3',εr,4, εr,5 relative permittivity lA connection zone length 13 lB contact zone length 11 lZ 12 t power line zone length 1 width of parting line 7 A-A‘ section line B-B‘ section line i outer surface of cover glazing 4 iV outer surface of substrate 1
    权利要求:
    Claims (14)
    [0001]
    1. Composite glazing (100) with a capacitive switching zone (10) characterized in that it comprises: - a substrate (1), - at least one first intermediate layer (2), which is bonded in area to the substrate (1 ), - at least one second intermediate layer (3.3'), which is area bonded to the first intermediate layer (2), and - a covering glazing (4), which is area bonded to the second intermediate layer (3.3'), in which - a carrier film (5) with an electrically conductive layer (6) is disposed, at least in sections, between the first intermediate layer (2) and the second intermediate layer (3.3' ), - at least one capacitive switching zone (10) is electrically isolated from the electrically conductive layer (6) by at least one coating-free separation line (7), - the capacitive switching zone (10) has a zone of contact (11), a supply line zone (12), and a connection zone (13); the supply line zone (12) electrically connects the contact zone (11) to the connection zone (13), and the connection zone (13) is electrically connectable to the sensor electronics (14), and - a capacitance of surface cI between the contact zone (11) and the outer surface (IV) of the substrate (1), defined as the capacitance of a plate capacitor in that zone of the composite glazing (100) that results from the orthogonal projection of the zone of contact (11) between the contact zone (11) and the outer surface (IV) of the substrate (1), with the resulting capacitance normalized over the area of the contact zone (11), is greater than a surface capacitance cA between the contact zone (11) and the outer surface (I) of the covering pane (4), defined as the capacitance of a plate capacitor in that zone of the composite pane (100) that results from the orthogonal projection of the zone of contact (11) between the contact zone (11) and the outer surface (I) of the roof glazing a (4), with the resulting capacitance normalized to the area of the contact zone (11).
    [0002]
    2. Composite glazing (100), according to claim 1, characterized in that the ratio between the surface capacitance cI and the surface capacitance cA is greater than or equal to 1.1:1, preferably greater than or equal to 1.2: 1.
    [0003]
    3. Composite glazing (100) according to claim 1 or 2, characterized by the fact that the supply line zone (12) has a length lZ from 1 cm to 70 cm and preferably from 1 cm to 8 cm and has a width bZ from 0.5 mm to 10 mm and preferably from 0.5 mm to 2 mm and is preferably in the form of a rectangle, a strip or a line.
    [0004]
    4. Composite glazing (100), according to any one of claims 1 to 3, characterized by the fact that the ratio between length IZ and width bZ of the supply line zone (12) is less than or equal to 1:700 and preferably from 1:5 to 1:100.
    [0005]
    5. Composite glazing (100), according to any one of claims 1 to 4, characterized by the fact that the area of the contact zone (11) is from 1 cm2 to 200 cm2, particularly and preferably from 1 cm2 to 9 cm2 and/or has the shape of a rectangle, square, trapezoid, triangle, circle, ellipse, or droplet or has rounded corners.
    [0006]
    6. Composite glazing (100) according to any one of claims 1 to 5, characterized in that the region of the electrically conductive layer (6) outside the capacitive switching zone (10) forms a surrounding area (15), which it is connectable to the sensor electronics (14) via another connection zone (16).
    [0007]
    7. Composite glazing (100), according to any one of claims 1 to 6, characterized by the fact that the width t1 of the separation line (7) is from 30 μm to 200 μm and preferably from 70 μm to 140 μm.
    [0008]
    8. Composite glazing (100), according to any one of claims 1 to 7, characterized by the fact that the first intermediate layer (2) and/or the second intermediate layer (3.3') is transparent, contains or is produced of polyvinyl butyral (PVB), and/or has a relative permittivity εr,2/3/3' of 2 to 4 and particularly preferably of 2.1 to 2.9.
    [0009]
    9. Composite glazing (100), according to any one of claims 1 to 8, characterized in that the carrier film (5) is transparent, contains or is produced from polyethylene terephthalate (PET), and/or has a relative permittivity εr,5 from 2 to 4 and particularly preferably from 2.7 to 3.3.
    [0010]
    10. Composite glazing (100) according to any one of claims 1 to 9, characterized in that the substrate (1) and/or the covering glazing (4) contains glass, preferably flat glass, float glass, glass of quartz, borosilicate glass, soda-lime glass, or polymers, preferably polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, and/or mixtures thereof, and/or has a relative permittivity εr,1/4 from 2 to 8 and particularly and preferably from 6 to 8.
    [0011]
    11. Composite glazing (100) according to any one of claims 1 to 10, characterized in that the electrically conductive layer (2) is transparent and/or has a blade resistance of 0.4 ohm/square to 200 ohm/square and preferably from 0.5 ohm/square to 20 ohm/square and/or contains silver (Ag), indium tin oxide (ITO), fluorine-doped tin oxide (SnO2:F), or oxide of aluminum doped zinc (ZnO:Al).
    [0012]
    12. Glazing arrangement (101) characterized in that it comprises: - a composite glazing (100), as defined in any one of claims 1 to 11, and - capacitive sensor electronics (14), which are electrically connected to the connection zone (13), wherein the sensitivity of the sensor electronics (14) is selected so that a switching signal is emitted when the contact zone (11) on the surface (IV) of the substrate (1) is touched by a human finger and no switching signal or a different switching signal is emitted when the contact zone (11) on the surface (I) of the covering pane (4) is touched.
    [0013]
    13. Glazing arrangement (101) characterized in that it comprises: - a composite glazing (100), as defined in any one of claims 1 to 11, and - capacitive sensor electronics (14), which are electrically connected to the zone connection (13), wherein the sensitivity of the sensor electronics (14) is selected so that a switching signal is emitted when the contact zone (11) on the surface (IV) of the substrate (1) and/or on the surface (I) of the covering pane (4) is touched by a human finger and no switching signal or a different switching signal is emitted when the supply line zone (12) on the surface (IV) of the substrate (1 ) and/or on the surface (I) of the covering pane (4) is touched.
    [0014]
    14. Method for producing a composite glazing (100), as defined in any one of claims 1 to 11, characterized in that it comprises at least: (a) applying an electrically conductive layer (6) on a surface of a carrier film ( 5), (b) introduce at least one separation line (7), which electrically divides the layer (6) into at least one capacitive switching zone (10) and at least one surrounding zone (15), preferably by patterning by laser or by mechanical or chemical ablation, and (c) producing a stack sequence consisting of a substrate (1), a first intermediate layer (2), a second intermediate layer (3) and a cover glazing (4) , wherein the carrier film (5) is arranged, at least in sections, between the first intermediate layer (2) and the second intermediate layer (3), and (d) laminate the stack sequence to form a composite glazing (100 ).
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    同族专利:
    公开号 | 公开日
    PL3247558T3|2021-12-13|
    CN106457779A|2017-02-22|
    CN106457779B|2019-04-09|
    EP3247558A1|2017-11-29|
    JP6538858B2|2019-07-03|
    ES2887473T3|2021-12-22|
    US10525673B2|2020-01-07|
    EP3247558B1|2021-06-02|
    BR112017011348A2|2018-04-03|
    EA034011B1|2019-12-18|
    HUE055490T2|2021-11-29|
    WO2016116372A1|2016-07-28|
    MX2017009412A|2017-10-12|
    EA201791412A1|2017-11-30|
    US20180009198A1|2018-01-11|
    CA2969410A1|2016-07-28|
    KR20170097135A|2017-08-25|
    JP2018509361A|2018-04-05|
    KR101986031B1|2019-06-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB2090979B|1981-01-14|1985-07-03|Glaverbel|Proximity control switching panels|
    EP0146198A3|1983-12-20|1986-10-29|Cannon Davis Associates Limited|Improvements in selector devices|
    FR2757151B1|1996-12-12|1999-01-08|Saint Gobain Vitrage|GLAZING COMPRISING A SUBSTRATE PROVIDED WITH A STACK OF THIN FILMS FOR SUN PROTECTION AND / OR THERMAL INSULATION|
    DE19727220C2|1997-06-26|1999-08-26|Captron Elect Gmbh|Circuit arrangement for a capacitive switch|
    WO2000044018A1|1999-01-26|2000-07-27|Harald Philipp|Capacitive sensor and array|
    US6654070B1|2001-03-23|2003-11-25|Michael Edward Rofe|Interactive heads up display |
    BE1015302A3|2003-01-10|2005-01-11|Glaverbel|Glass with electronic components.|
    FR2859525B1|2003-09-09|2006-06-02|Delphi Tech Inc|SLIDE CAPACITIVE SWITCH|
    GB2423808B|2005-03-04|2010-02-17|Ford Global Tech Llc|Motor vehicle control system for controlling one or more vehicle devices|
    DE202006006192U1|2006-04-18|2006-07-27|Captron Electronic Gmbh|Door actuating touch switch for public transport vehicle of short and long range type, with optical display of multicoloured light sources, four-wire interface|
    GB0705120D0|2007-03-16|2007-04-25|Pilkington Group Ltd|Vehicle glazing|
    AT531083T|2008-06-25|2011-11-15|Atec Holding Ag|DEVICE FOR STRUCTURING A SOLAR MODULE|
    EP2200097A1|2008-12-16|2010-06-23|Saint-Gobain Glass France S.A.|Method of manufacturing a photovoltaic device and system for patterning an object|
    DE202008017611U1|2008-12-20|2010-04-22|Saint-Gobain Sekurit Deutschland Gmbh & Co. Kg|Disc-shaped, transparent, electrically heatable composite material|
    EP2444381A1|2010-10-19|2012-04-25|Saint-Gobain Glass France|Transparent glazing|
    BE1021978B1|2013-12-13|2016-02-01|Agc Glass Europe|AUTOMOBILE GLAZING|MX2018001949A|2015-08-18|2018-06-19|Saint Gobain|Pane arrangement comprising a pane with a low-e coating and a capacitive switching region.|
    CA3015171A1|2016-05-23|2017-11-30|Saint-Gobain Glass France|Laminated glass pane having a sensor assembly and method for producing a laminated glass pane having a sensor assembly|
    WO2018082977A1|2016-11-04|2018-05-11|Saint-Gobain Glass France|Sheet arrangement comprising a composite sheet having an extended capacitive switching region|
    US10814493B2|2017-01-12|2020-10-27|Robotiq Inc.|Tactile sensor and a method of manufacturing thereof|
    JP6997318B2|2017-12-05|2022-01-17|サン－ゴバン グラス フランス|How to make a laminated pane|
    BR112020021670A2|2018-04-25|2021-01-26|Saint-Gobain Glass France|composite glazing with electrically switchable functional element in intermediate thermoplastic layer|
    KR20210109580A|2019-01-30|2021-09-06|쌩-고벵 글래스 프랑스|Laminated panes and laminated pane assemblies with electrically controllable optical properties|
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    法律状态:
    2020-02-11| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-05-25| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-06-15| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/01/2016, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP15151763|2015-01-20|
    EP15151763.8|2015-01-20|
    PCT/EP2016/050789|WO2016116372A1|2015-01-20|2016-01-15|Composite pane with capacitive switching region|
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