CN113508358A

CN113508358A - Composite glass pane arrangement with touch control element for control function

Info

Publication number: CN113508358A
Application number: CN202180000762.XA
Authority: CN
Inventors: C·埃费尔茨; C·博托瓦
Original assignee: Saint Gobain Glass France SAS
Current assignee: Saint Gobain Glass France SAS; Compagnie de Saint Gobain SA
Priority date: 2020-02-03
Filing date: 2021-01-29
Publication date: 2021-10-15
Also published as: DE202021004033U1; WO2021156143A1

Abstract

The invention relates to a composite glass sheet device (1) comprising: -a composite glass pane (2) with a first glass pane (5), a second glass pane (6) and a thermoplastic interlayer (7), wherein the first glass pane (5) and the second glass pane (6) are joined to one another by the thermoplastic interlayer (7), -a touch-operated element (3) as a switching element for controlling an electrically adjustable functional element (12), and-a module (4) which is electrically connectable to the touch-operated element (3), wherein the module (4) is provided as a vibration module for generating a haptic effect in the form of vibrations as feedback in response to a manipulation of the touch-operated element (3), characterized in that the vibrations vary in intensity, duration and frequency.

Description

Composite glass pane arrangement with touch control element for control function

The invention relates to a composite pane arrangement having at least one touch-sensitive operating element as a switching element for controlling a functional element, and also to the use of the composite pane arrangement.

The composite glass pane consists of at least one outer glass pane, an inner glass pane and an adhesive interlayer joining the outer glass pane to the inner glass pane in a planar manner. A typical intermediate layer here is a polyvinyl butyral film which, in addition to its adhesive properties, has high toughness and high acoustic damping. The interlayer prevents the composite glass sheet from collapsing when damaged. The composite glass sheet only acquired cracks but remained shape stable.

Composite glass panels with electrically switchable optical properties are known from the prior art. Such composite glass sheets comprise a functional element, which typically contains an active layer located between two planar electrodes. The optical properties of the active layer can be changed by a voltage applied to the planar electrode. Examples of this are electrochromic functional elements, which are known, for example, from US 20120026573 a1 and WO 2012007334 a 1. Another example is an SPD function (suspended particle device) or a PDLC function (polymer dispersed liquid crystal), which are known for example from EP 0876608B 1 and WO 2011033313 a 1. The transmission of visible light through the electrochromic or SPD/PDLC functional element can be controlled by the applied voltage. A composite glass pane having such a functional element can thus be changed in a comfortable manner by electrical means in its optical properties and is usually inserted as a roof pane into a vehicle.

Furthermore, it is known to provide composite glass panes additionally with switching regions for controlling functional elements. Such a switching region may be constructed by a planar electrode or by arranging two coupling electrodes, for example as a capacitive switching region. When an object approaches the switching region, the capacitance of the planar electrode to ground or the capacitance of the capacitor formed by the two coupling electrodes changes. This change in capacitance is measured by the circuit arrangement or the sensor electronics and triggers a switching signal when a threshold value is exceeded. A circuit arrangement for a capacitive switch is known, for example, from EP 0899882 a 1. According to the prior art, the switching signal is triggered by the contact of a human hand on the contact area of the capacitive switching areas, which are therefore also referred to as touch controllers.

US 2010/179725 a1 discloses a vehicle glazing comprising a manually switchable sensor and a barrier assigned to the sensor. The sensor is manually manipulable and is configured to switch the external device.

Such a switching region is usually not arranged in the center of the windshield but in the edge region of the windshield or also in the edge region of the roof pane. The switching region is not located in the field of view of the vehicle driver, so the vehicle driver is often not aware whether he has contacted the switching region and whether a switching signal has been generated. Contact with the vehicle glazing, in particular the roof glazing, can lead to an unnecessary distraction of the vehicle driver or at least to an obvious difficulty for him to look at the road. At the same time, it is desirable to impair the view through the glass sheet as little as possible. Thus, for example, the sensor is arranged on the edge of the glass plate, preferably in the region of the black print.

The object of the invention is to provide an improved composite glazing unit having a touch-sensitive operating element, which does not require the driver to remove his line of sight from the road when operating the touch-sensitive operating element.

According to the invention, the object of the invention is achieved by a composite glass sheet device according to independent claim 1. Preferred embodiments of the invention follow from the dependent claims.

The composite glass sheet device of the present invention comprises at least the following features:

a composite glass pane having a first glass pane, a second glass pane and a thermoplastic interlayer, wherein the first glass pane and the second glass pane are joined to one another by the thermoplastic interlayer,

a touch-operated element as a switching element for controlling the electrically adjustable functional element, and

-a module electrically connectable with the touch-operated element, wherein the module is arranged as a vibration module for generating a haptic effect in the form of vibrations as feedback in response to a manipulation of the touch-operated element.

In particular, the haptic effect is triggered by the touch-sensitive element.

Since the vehicle user obtains haptic feedback for the manipulation of the touch-sensitive operating element, he does not have to look his way towards the touch-sensitive operating element and away from the road. As a result, the driving safety is increased, since the vehicle user, in particular the vehicle driver, receives a direct confirmation of the actuation of the touch-sensitive operating element.

The term "manipulation" should be interpreted broadly as including various interactions, i.e. contact with the composite glass sheet, which may be converted into an electrical switching signal.

The composite pane arrangement according to the invention with touch-sensitive operating elements serves to isolate the interior space from the outside environment. By means of the touch-operated element provided, it is possible to detect an object, for example a human hand, and to generate a switching signal. The touch-sensitive element can be used for electrically controlling functions in or out of the composite glass pane, preferably for changing the optical transparency of the functional elements of the window pane, in particular of the Suspended Particle Device (SPD) layer, the Polymer Dispersed Liquid Crystal (PDLC) layer or the electrochromic interlayer, or the heating function, in particular the illumination of a light source, such as a light emitting diode (LED or OLED), in particular a dimmable light emitting diode, arranged on or in the window pane. The light source can be arranged at any point on the first or second glass pane, in particular above the carrier and on the side edges of the composite glass pane.

The particular advantages of light emitting diodes are small size and small power consumption. The wavelength range emitted by the LED may be freely chosen in the range of visible light, for example from a practical and/or aesthetic point of view.

According to the invention, the composite glass pane has a thermoplastic intermediate layer, which may in particular have various thermoplastic materials based on a plurality of individual layers of thermoplastic material. The term "interlayer" refers to an integral layer disposed between a first glass sheet and a second glass sheet created by joining a plurality of different individual layers.

The glass plate preferably comprises or consists of glass, particularly preferably flat glass, very particularly preferably float glass, such as soda-lime glass, borosilicate glass or quartz glass. Alternatively, the glass plate may comprise or consist of a clear plastic, preferably a rigid clear plastic, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyester, polyvinyl chloride and/or mixtures thereof. The glass sheet is preferably transparent, particularly for applications where the composite glass sheet is used as a windshield or rear glass sheet for a vehicle or other applications where high light transmission is desired. Transparent in the sense of the present invention means a glass plate which has a transmission of more than 70% in the visible spectral range. However, for glass panels that are not in the driver's view in relation to traffic, for example for the roof glass panel, the transmission may also be much smaller, for example greater than 5%.

The composite glass sheet may have any three-dimensional shape. Preferably, the glass plate is flat or slightly or strongly curved in one or more directions in space. In particular flat glass plates are used. The glass plate may be colorless or colored.

The thickness of the glass plate can vary widely and is therefore adapted to the requirements of the respective case. Preferably, the standard thickness of each glass sheet is 1.0 mm to 25 mm, for example 1.1 mm to 2.0 mm, preferably 1.4 mm to 2.5 mm, for example 1.6 mm or 2.1 mm for vehicle glass, and preferably 4 mm to 25 mm for use in furniture, instruments and buildings. The size of the glass sheet can vary widely and depends on the size of the application for which the invention is intended. The first glass sheet and the second glass sheet are built and constructed, for example, in a vehicleHas 200 cm in the construction field²To 20 m²The common area of (a).

According to the invention, the module is provided as a vibration module for generating vibrations. The module may be arranged to confirm the recognized manipulation by vibration or to convey the impression of a key press to the user. The attention and the direction of the line of sight of the user, in particular of the driver of the vehicle, are not diverted by the fact that he must direct his line of sight in the direction of the touch-sensitive operating element, but rather the switching signal is ascertained for him by vibration when the hand is extended in the direction of the touch-sensitive operating element.

The vibration of the vibration module may vary in intensity, duration, and frequency. Various sequences of vibration signals may be generated. The vibration module can generate different vibrations when the touch-sensitive operating element is actuated depending on the assigned function. For example, the identified manipulation may be confirmed by a brief vibration. It is particularly advantageous here if there is a correlation between the intensity of the vibration and the distance or duration of the user contact.

In one embodiment of the composite pane arrangement according to the invention, the touch-sensitive operating element and/or the module is preferably arranged on a pane of composite pane, in particular a so-called inner pane. In the sense of the present invention, an inner glass pane denotes a glass pane of a composite glass pane which faces the interior space (vehicle interior space). The outer glass sheet represents a glass sheet facing the outside environment. The outer side surface of the glass pane is here the surface of the glass pane facing outwards, i.e. facing away from the interior space of the vehicle. Thus, the inside surface refers to the surface of the glass sheet facing the vehicle interior space. In the case of a composite glass pane as a vehicle glazing, it may be, for example, a roof glazing, a windshield glazing, a rear glazing, a side glazing or other glazing which delimits a vehicle interior. With this arrangement, the touch-sensitive element can be accessed particularly easily and the haptic effect is felt particularly strongly by the user.

Furthermore, the module, in particular the vibration module, can be joined in an adhesively secure manner to the inner glass pane. In this case, the module is preferably fixed to the inner pane by means of an adhesive.

In a further embodiment, the module can be designed, for example, as a piezo actuator.

According to another embodiment, the composite glass pane is designed as a roof glass pane of a vehicle and/or the functional element is arranged in or on the composite glass pane. This improves the driving safety if the touch-operated element is manipulated by the vehicle driver, since the vehicle driver does not have to take his line of sight away from the road, since the haptic effect is felt as feedback.

According to a further embodiment, the touch-sensitive elements, which are also referred to as so-called touch controllers, can be designed as capacitive or ohmic switching regions. In the case of capacitive switching zones, the switching zones are designed for capacitive touch detection. Within the scope of the present invention, contact is understood to mean various interactions with the switching region, which result in the generation of a switching signal. In particular, this is a contact to the surface of the composite glass pane in the region produced by the orthogonal projection of the touch-sensitive operating element on the surface.

In the case of a capacitive switching zone, the touch-sensitive operating element is preferably formed by a conductive layer. The conductive layer can have, for example, copper, silver, gold, or an alloy containing at least one of the above-mentioned materials. For example, the conductive layer may also serve as a heating layer or an antenna layer. The conductive layer is preferably transparent. The electrically conductive layer can be arranged directly on the inner side surface of the vehicle glass pane or on the intermediate layer or on an additional carrier film, preferably on a transparent carrier film.

Suitable electrically conductive layers are known, for example, from DE 202008017611U 1, EP 0847965B 1 or WO 2012/052315 a 1. It typically comprises one or more, for example two, three or four, electrically conductive functional layers. The functional layer preferably comprises at least one metal, such as silver, gold, copper, nickel and/or chromium, or a metal alloy. The functional layer particularly preferably contains at least 90% by weight of metal, in particular at least 99.9% by weight of metal. The functional layer may be composed of a metal or a metal alloy. The functional layer particularly preferably comprises silver or an alloy comprising silver. Such functional layers have a particularly advantageous electrical conductivity and at the same time have a high transmission in the visible spectral range. The thickness of the functional layer is preferably from 5 nm to 50 nm, particularly preferably from 8 nm to 25 nm. In this range of the functional layer thickness, an advantageously high transmission in the visible spectral range and a particularly advantageous electrical conductivity are achieved.

Typically, at least one dielectric layer is arranged between two adjacent functional layers, respectively. A further dielectric layer is preferably arranged below the first functional layer and/or above the last functional layer. The dielectric layer comprises at least one monolayer of a dielectric material, for example comprising a nitride, such as silicon nitride, or an oxide, such as aluminum oxide. However, the dielectric layer may also comprise a plurality of monolayers, such as a monolayer of dielectric material, a smoothing layer, a tuning layer, a barrier layer, and/or an antireflective layer. The thickness of the dielectric layer is, for example, 10 nm to 200 nm.

Other suitable conductive layers preferably comprise Indium Tin Oxide (ITO), fluorine doped tin oxide (SnO)₂F) or aluminium-doped zinc oxide (ZnO: Al) or consists thereof.

The electrically conductive layer can in principle be a variety of coatings which can be electrically contacted. If the composite glass pane according to the invention should be transparent, as for example a glass pane in the window area, the electrically conductive layer is preferably transparent. In one advantageous embodiment, the electrically conductive layer is a layer structure of one or more monolayers having a total thickness of less than or equal to 2 μm, particularly preferably less than or equal to 1 μm.

The formation of the touch-sensitive element can be carried out, for example, by printing or ablative mechanical and/or chemical methods, chemical vapor deposition (chemical vapor deposition, CVD), plasma-assisted vapor deposition (PECVD), and is not important for a further understanding of the invention in the following. This advantageously results in a thin arrangement which can be integrated easily into the composite glass pane. Further, the touch operation element may include an IR sensor.

According to another embodiment of the invention, the electrically conductive layer is arranged on a film which is joined to the vehicle glass pane, wherein the film is introduced between the first glass pane and the second glass pane. In particular, the film may comprise at least one material selected from the group consisting of polyimide, polyurethane, polymethylmethacrylate, polycarbonate, polyethylene terephthalate, polyvinyl butyral, FR6, acrylonitrile-butadiene-styrene copolymer, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polybutylene terephthalate, polyamide. The mass production in advance on the membrane makes it possible to produce it particularly cost-effectively.

Preferably, the module and the touch-operated element are electrically connected to each other by an external control module (ECU) and/or a flat conductor. Both the touch-operated element and the module can be electrically connected to each other by a flat conductor, a wire, or a linear conductor, respectively. The flat conductor is led out from the composite glass plate. The composite pane arrangement can therefore be connected particularly simply in the use position to a voltage source and to a signal line which evaluates the switching signal of the touch-sensitive operating element. The module, in particular the vibration module, can be contacted on the flat conductor or completely integrated in the flat conductor.

A flat conductor (also called flat ribbon conductor or film conductor) is understood to mean an electrical conductor whose width is significantly greater than its thickness. Such flat conductors are, for example, strips or ribbons which comprise or consist of copper, tin-plated copper, aluminum, silver, gold or alloys thereof. The flat conductor or the film conductor has, for example, a width of 2 mm to 16 mm and a thickness of 0.03 mm to 0.1 mm. The flat conductor or the film conductor can have an insulating, preferably polymeric, coating, which is based for example on polyimide. Film conductors suitable for contacting the conductive layers in the glass plate or the module have only a total thickness of, for example, 0.3 mm. Such a thin film conductor can be simply and aesthetically arranged and glued, for example, on the inside surface. In the film conductor strip, there may be a plurality of electrically conductive layers electrically insulated from one another.

The electrically conductive connection between the touch-sensitive element or module and the flat conductor is preferably realized by means of an electrically conductive adhesive which realizes a reliable and durable electrically conductive connection between the connection region and the feed line. Alternatively, the electrically conductive connection can also be realized by means of a stud or spring contact, or a flat conductor can also be printed on the connection region of the touch-sensitive operating element, for example by means of a fired, metal-containing and in particular silver-containing, electrically conductive printing paste or soldering, in particular ultrasonic soldering.

The switching signal is either transmitted directly from the touch-sensitive element to the module or is evaluated by the control module and transmitted to the module for generating haptic effects.

Such a composite pane arrangement CAN then be connected particularly simply in the use position to the voltage source and to the signal lines for evaluating the switching signals of the control module, for example in a vehicle via a CAN bus. The switching signal output can be adapted to the requirements of the respective application at will. For example, one switching signal may represent a positive voltage, e.g. 12V, no switching signal represents e.g. 0V, and another switching signal represents e.g. + 6V. The switching signals CAN also correspond to the voltages CAN _ high and CAN _ low that are customary in CAN buses and CAN be shifted by the voltage values lying between them. The switching signal may also be pulsed and/or digitally encoded.

According to another embodiment, the module may be arranged between an inner glass panel of the top glass panel and a cover, in particular a vehicle cover, and covered by the cover in the perspective direction of the top glass panel. With this arrangement, the haptic effect, particularly the intensity of vibration, can be improved.

According to yet another embodiment of the invention, the composite glass pane has an overlay print, in particular a black overlay print, on at least one portion of the edge of said first or second glass pane. The module can be covered by an opaque cover print in the perspective direction of the composite pane, in particular the windshield pane. Thereby significantly improving the visual appearance of the composite glass sheet installed in the vehicle. Furthermore, the touch-sensitive operating elements and modules can be arranged below the cover print in such a way that they remain visually invisible and thus do not interfere with the aesthetic impression.

In an advantageous embodiment of the composite pane according to the invention, the touch-sensitive operating elements and the modules are arranged at the outer edges of the composite pane. The distance from the outer edge is preferably less than 10 cm, particularly preferably less than 0.5 cm. This allows an electrically contacting of the touch-sensitive element underneath the visually inconspicuous overlay print with, for example, a flat conductor.

Another aspect of the invention includes the use of the composite glass sheet device of the invention in an amphibious air vehicle, particularly in a motor vehicle, for example as a windshield, rear glass, side glass and/or roof glass sheet.

The invention is explained in more detail below with the aid of figures and examples. The figures are schematic and not to scale. The drawings are not intended to limit the invention in any way.

Wherein:

figure 1 shows a cross-sectional view of a composite glass sheet apparatus of the present invention,

figure 2 shows an embodiment of the composite glass sheet device of the invention as a top glass sheet,

FIG. 3 shows a cross-sectional view of another alternative embodiment of a composite glass sheet device of the present invention having a vibration module on the outside surface of the inner glass sheet, an

Figure 4 shows a cross-sectional view of another alternative embodiment of the composite glass sheet device of the present invention having a vibration module on the inside surface of the inner glass sheet.

In all cases, the numerical descriptions are not to be understood as precise values, but also to include tolerances of +/-1% to +/-10%.

FIG. 1 shows a cross-sectional view of a composite glass sheet device 1 of the present invention. The composite pane arrangement 1 comprises a composite pane 2, a touch control element 3 and a module 4, in particular a vibration module, for example. The composite glass pane 2 comprises a first glass pane 5 and a second glass pane 6, which are joined to one another by an interlayer 7 made of PVB film. The module 4 is arranged in a firmly adhering manner on the second glass plate 6 and on the touch-sensitive operating element 3. In order to ensure that a contact detected by touching the operating element can be recognized, the module is provided for generating a haptic effect.

The touch-sensitive operating element 3 and the module 4 are each connected in an electrically conductive manner to the flat conductor 9 by means of an electrically conductive connection. In this case, a reliable electrically conductive connection is preferably realized by means of an electrically conductive adhesive. The flat conductor 9 is composed of, for example, a 50 μm thick copper film and is insulated, for example, by a polyimide layer. The flat conductor 9 is connected here, for example, outside the composite pane 2 to a control module (ECU). The control module has capacitive sensor electronics, which can evaluate and generate the switching signal. The sensor electronics are suitable for accurately measuring the change in capacitance of the switching region relative to the environmental region and for transmitting a switching signal, for example, to a CAN bus of the vehicle as a function of a threshold value.

By switching the signal, any function in the vehicle can be switched. For example, the illumination in or on the composite glass sheet may be turned on or off. A haptic effect, such as a vibration, is generated by the module 4 in accordance with the switching signal. The vibration signal or the exact vibration sequence is stored in the control module. Thus, for example, when the touch-sensitive operating element 3 is actuated, i.e. when the switching region is contacted, the control module can initiate brief vibrations. The vibration tactilely confirms to the vehicle driver that the switching signal has been generated without the vehicle driver having to change his direction of sight. Here, the smaller the distance between the finger of the vehicle user and the touch operation element is, the greater the intensity of the vibration can be.

The first glass plate 5 and the second glass plate 6 are each composed of, for example, soda lime glass, and are manufactured by a float process. The second glass plate 6 has a layer 8 on almost the entire outer side surface thereof. The layer 8 is an electrically conductive layer which is divided into different, electrically insulated regions from each other by uncoated parting lines. In this embodiment, electrically isolated means that the regions are galvanically isolated from each other, i.e. no Direct Current (DC) can flow between the regions. The width of the parting line is 30 μm to 200 μm, preferably 70 μm to 140 μm. Such thin separation lines allow a reliable and sufficiently high electrical insulation and at the same time do not or only slightly interfere with the transmission of the light through the composite glass pane.

In the edge region of the composite glass pane 2, the layer 8 has, for example, a touch-sensitive operating element which comprises a capacitive switching region. The touch-sensitive operating element generates an electric field 10 (only indicated here) which extends in the active region. The activation region is arranged above a surface parallel to the inner side surface and extends towards the interior space. The activation region can preferably have a width in the direction of the interior space of less than or equal to 10 cm. By means of the set activation area, an object, for example a human finger 11, can be detected and a signal generated. When an object moves into the activation region, the object causes a change in the electric field detected by the capacitive switching region.

The side edges of the composite glass sheet 2 are covered by vehicle shields 13.

Alternatively, the touch operating element 3 may be designed in the form of a pre-mass-produced patch. In this case, a conductive layer, for example made of silver (Ag), is applied to a film, for example made of PET (polyethylene terephthalate), wherein the touch control element 3 is introduced into the conductive layer, for example, by means of a laser. The patch is laminated into a transparent composite cover glass sheet 2.

Fig. 2 shows an embodiment of a composite glass pane arrangement 1 according to the invention as a roof glass pane in a motor vehicle. The driver of the motor vehicle sees through the windscreen panel 15. The field of view 16 thereof through the windscreen panel 15 is indicated by a dashed line.

The composite glass pane 2 here additionally comprises, for example, a functional element 12, which is embedded in the intermediate layer 7. The intermediate layer 7 comprises a total of three thermoplastic layers, each formed by a PVB thermoplastic film having a thickness of 0.38 mm. The first thermoplastic layer is bonded to the first glass plate 5 and the second thermoplastic layer is bonded to the second glass plate 6. A third thermoplastic layer located therebetween laterally surrounds the functional element 12. The functional member 12 is a PDLC functional element which acts as an adjustable sun visor. The driver can actuate the PDLC function by touching the operating element 3 as a function of the sun position.

The size of the composite glass pane 2 is for example 0.9 m x 1.5.5 m. The composite glass pane 2 is provided, for example, for separating the vehicle interior from the outside environment in the installed position. That is, the inside surface of the second glass pane 6 is accessible from the interior space, whereas the outside surface of the second glass pane 6 is directed outwards with respect to the vehicle interior space. The thickness of the first glass plate 5 is, for example, 2.1 mm. In principle, the first glass plate 5 can also have other thicknesses. Thus, the first glass plate 5 may for example have a thickness of 4 mm. The thickness of the second glass plate 6 is, for example, 1.6 mm.

In this case, the arrangement of the touch-sensitive operating element 3 is selected such that the vehicle driver can comfortably reach the activation region of the touch-sensitive operating element 3 above his head.

In the exemplary embodiment shown, the configuration is adapted such that the switching signal is triggered when the hand is moved within the activation region, i.e. when the second glass pane 6 is moved over the capacitive switching region on the inner side surface in fig. 2. Here, the module 4 generates vibrations as feedback in response to the manipulation of the touch-sensitive operating element 3 without the driver having to take his line of sight away from the road.

Fig. 3 shows another alternative embodiment of the composite glass pane arrangement 1 according to the invention with the module 4 as a vibration module on the outer side surface of the second glass pane 6, i.e. the inner glass pane of the vehicle. In this embodiment, the composite glass sheet 2 comprises a first glass sheet 5 and a second glass sheet 6, which are joined to each other by an interlayer 7 made of PVB film. The inner surface of the second glass plate 6 has a conductive layer 8 and a touch-operated element 3. In other words, the touch-sensitive operating element 3 is arranged on the surface of the second glass pane 6 facing away from the intermediate layer 7. The layer 8 may be a so-called low-e coating.

Such low-emissivity coatings have functional layers made of, for example, ITO and comprise the following layer stack: glass plate 1/adhesion layer/functional layer/barrier layer/anti-reflection layer. Low-e coatings have the advantage of corrosion resistance. Thus, a low-e coating can be applied to the surface of the second glass plate 6. The second glass pane 6 is arranged for facing, in the mounted position, for example, an interior space of a vehicle or a building. On this surface, the low-emissivity coating is particularly effective in reducing the emission of thermal radiation from the glazing panel into the interior space during the summer and out to the external environment during the winter.

The module 4 is fixed in an adhesively firm manner on the second glass plate 6. Both the touch-sensitive operating element 3 and the module 4 are covered by the black cover print 14 in the direction of the line of sight through the composite glass pane 2 and are therefore not visible to the observer.

Figure 4 shows another alternative embodiment of the composite glass sheet device 1 of the invention having the module 4 as a vibration module on the outside surface of the second glass sheet 6 (inner glass sheet). In this embodiment, the composite glass plate 2 further comprises a first glass plate 5 and a second glass plate 6 which are joined to each other by an interlayer 7 made of a PVB film, wherein the conductive layer 8 and the touch-operating element 3 are arranged on the inner side surface of the second glass plate 6. The composite glass panel 2 is mounted in the vehicle in a mounted position.

The side edges of the composite glass pane 2 are covered by a cover 13 of the vehicle, in particular made of plastic. The module 4 is fixed in an adhesively secure manner to the second glass plate 6 by adhesive bonding. In other words, the module 4 is arranged on the surface of the second glass pane 6 facing away from the intermediate layer 7. The module 4 is arranged on the glass plate 6 in such a way that it is covered by the cover 13 in the viewing direction. The touch-sensitive operating element 3 is arranged similarly to fig. 3 to be covered by a black cover print in the direction of the line of sight through the composite glass pane 2.

List of reference numerals:

1 composite glass plate device

2 composite glass plate

3 touch control element

4 module

5 first glass plate

6 second glass plate

7 intermediate layer

8 conductive layer

9 Flat conductor

10 electric field

11 finger

12 functional element

13 shield plate

14 overlay print

15 windscreen panel

16 driver views.

Claims

1. Composite glass sheet device (1) comprising:

-a composite glass pane (2) having a first glass pane (5), a second glass pane (6) and a thermoplastic interlayer (7), wherein the first glass pane (5) and the second glass pane (6) are joined to one another by means of the thermoplastic interlayer (7),

-a touch-operated element (3) as a switching element for controlling an electrically adjustable functional element (12), and

-a module (4) electrically connectable with the touch-operated element (3), wherein the module (4) is arranged as a vibration module for generating a haptic effect in the form of vibrations as feedback in response to a manipulation of the touch-operated element (3),

characterized in that the vibrations vary in intensity, duration and frequency.

2. Composite glass pane arrangement (1) according to claim 1, characterised in that the touch-operated element (3) and/or module (4) is arranged on a glass pane (5, 6) of the composite glass pane (2).

3. The composite glass pane arrangement (1) according to claims 1 to 2, characterised in that the composite glass pane (2) is designed as a roof glass pane of a vehicle and/or the functional element (12) is arranged in or on the composite glass pane (2).

4. A composite glass sheet arrangement (1) according to any one of claims 1 to 3, characterised in that the module (4) is joined in an adhesively secure manner to the second glass sheet (6).

5. A composite glass sheet device (1) according to any of claims 1 to 4, characterized in that the module (4) comprises a piezoelectric actuator.

6. A composite glass pane arrangement (1) according to any one of claims 1 to 5, characterised in that the touch-operated element (3) comprises a capacitive or ohmic switching region.

7. Composite glass pane arrangement (1) according to one of claims 1 to 6, characterised in that the touch-operated element (3) comprises an IR sensor.

8. Composite glass pane arrangement (1) according to one of claims 1 to 7, characterised in that the module (4) and the touch-operated element (3) can be electrically connected to one another by means of a control module (ECU) and/or a flat conductor.

9. A composite glass pane arrangement (1) according to any one of claims 3 to 8, characterised in that the module (4) is arranged between the second glass pane (6) of the top glass pane and a cover (13), in particular a vehicle cover, and can be covered in the see-through direction of the top glass pane.

10. A composite glass pane arrangement (1) according to any one of claims 2 to 9, characterised in that the module (4) is covered by an opaque cover print in the perspective direction of the composite glass pane (2).

11. Composite glazing unit (1) according to one of claims 1 to 10, characterised in that the touch-sensitive operating element (3) and/or the module (4) is arranged on the surface of the second glazing unit (6) facing away from the intermediate layer (7).

12. A composite glass sheet device (1) according to any of claims 1 to 11, characterized in that the functional element (12) is a PDLC functional element and/or a light source.

13. Composite glass pane arrangement (1) according to one of claims 1 to 12, characterised in that the touch-operated element (3) is provided for electrically controlling the optical transparency of the functional element (12).

14. Use of a composite glass pane arrangement (1) according to any one of claims 1 to 13 in a land, water and air vehicle, in particular in a motor vehicle, for example as a windscreen pane, a rear pane, a side pane and/or a roof pane.