WO2021156143A1

WO2021156143A1 - Composite pane assembly with touch operating element for controlling a function

Info

Publication number: WO2021156143A1
Application number: PCT/EP2021/052055
Authority: WO
Inventors: Christian EFFERTZ; Clément BOTTOIS
Original assignee: Saint-Gobain Glass France
Priority date: 2020-02-03
Filing date: 2021-01-29
Publication date: 2021-08-12
Also published as: DE202021004033U1; CN113508358A

Abstract

The invention relates to a composite pane assembly (1) comprising: — a composite pane (2) which has a first pane (5), a second pane (6), and a thermoplastic intermediate layer (7), said first pane (5) and second pane (6) being connected together via the thermoplastic intermediate layer (7), — a touch operating element (3) in the form of a switch element for controlling an electrically controllable functional element (12), and — a module (4) which can be electrically connected to the touch operating element (3), wherein the module (4) is provided as a vibration module for generating a haptic effect in the form of a vibration as feedback in response to an actuation of the touch operating element (3). The invention is characterized in that the vibration varies with respect to intensity, duration, and frequency.

Description

Composite pane arrangement with touch control element for controlling a

function

The invention relates to a composite pane arrangement with at least one touch operating element as a switching element for controlling a functional element, as well as a use of the composite pane arrangement.

Composite panes consist of at least one outer pane, one inner pane and an adhesive intermediate layer that connects the outer pane with the inner pane over a large area. Typical intermediate layers are polyvinyl butyral films which, in addition to their adhesive properties, have high toughness and high acoustic damping. The intermediate layer prevents the laminated glass pane from disintegrating in the event of damage. The composite pane only gets cracks, but remains dimensionally stable.

Composite panes with electrically switchable optical properties are known from the prior art. Such composite panes contain a functional element which typically contains an active layer between two surface electrodes. The optical properties of the active layer can be changed by a voltage applied to the surface electrodes. An example of this are electrochromic functional elements, which are known, for example, from US 20120026573 A1 and WO 2012007334 A1. Another example are SPD (Suspended Particle Device) or PDLC (Polymer Dispersed Liquid Crystal) functional elements, which are known, for example, from EP 0876608 B1 and WO 2011033313 A1. The applied voltage can be used to control the transmission of visible light through electrochromic or SPD / PDLC functional elements. Composite panes with such functional elements can therefore change their optical properties electrically in a convenient way and are often installed as roof panes in vehicles.

It is also known that composite panes also have a switching area for controlling the functional element. Such switching areas can be formed by a flat electrode or by an arrangement of two coupled electrodes, for example as capacitive switching areas. If an object approaches the switching area, the capacitance of the flat electrode to earth or the capacitance of the capacitor formed by the two coupled electrodes changes. The change in capacitance is measured via a circuit arrangement or sensor electronics and a switching signal is triggered when a threshold value is exceeded. Circuit arrangements for capacitive switches are known, for example, from EP 0 899882 A1. According to the state of the art, a switching signal is triggered when a contact surface of the capacitive switching area is touched by a human hand, which is why these switching areas are also referred to as touch control.

US2010 / 179725 A1 discloses a vehicle glazing which comprises a manually switchable sensor and a shield assigned to the sensor. The sensor can be operated manually and is intended for switching an external device.

Such switching areas are usually not arranged in the middle of a windshield, but in the edge area of the windshield or also a roof window. The switching area is not in the driver's field of vision, which is why it is often not clear to the driver whether he has touched the switching area and a switching signal has been generated. Touching the vehicle window, in particular the roof window, can unnecessarily distract a vehicle driver or at least make his view of the road more difficult. At the same time, there is a need to impair the field of vision as little as possible through a pane. Therefore, for example, sensors are arranged at the edge of the pane, preferably in the area of a black print.

The object of the present invention is to provide an improved composite pane arrangement which has a touch control element which, when actuated, the vehicle driver does not have to take his eyes off the road.

The object of the present invention is achieved according to the invention by a composite pane arrangement according to independent claim 1. Preferred embodiments of the invention emerge from the subclaims.

The composite pane arrangement according to the invention comprises at least the following features: A composite pane which has a first pane, a second pane and a thermoplastic intermediate layer, the first pane and the second pane being connected to one another via the thermoplastic intermediate layer,

- A touch control element as a switching element for controlling an electrically controllable functional element, and

- A module that can be electrically connected to the touch control element, the module being provided as a vibration module for generating a haptic effect in the form of a vibration as feedback in response to an actuation of the touch control element.

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

Since a vehicle user receives haptic feedback on actuation of the touch control element, he does not have to direct his gaze at the touch control element and turn away from the road. This increases driving safety, since the vehicle user, in particular the vehicle driver, receives a direct confirmation of the actuation of the touch control element.

The term “actuation” is to be interpreted broadly, so that it includes any interaction, contact with the laminated pane that can be converted into an electrical switching signal.

The composite pane arrangement according to the invention with a touch control element is used to separate an interior from an external environment. With the help of the touch control element provided, an object, for example a human hand, can be detected and a switching signal can be generated. The touch control element can be used to electrically control a function inside or outside the laminated pane, preferably a change in the optical transparency of the functional element, in particular a suspended particle device (SPD) layer, polymer dispersed liquid crystal (PDLC) layer or an electrochromic intermediate layer, the window pane of a heating function, lighting, in particular a light source arranged on or in the window pane, such as a light-emitting diode (LED or OLED), in particular a dimmable light-emitting diode. The light source can be arranged at any point on the first or second pane, in particular via a seat and a composite pane on the side edge. The particular advantage of the light-emitting diode lies in its small dimensions and low power consumption. The wavelength range emitted by the LEDs can be freely selected in the range of visible light, for example according to practical and / or aesthetic aspects.

According to the invention, the composite pane has a thermoplastic intermediate layer which, in particular, can have various thermoplastic materials based on several individual layers of thermoplastic materials. The term “intermediate layer” refers to an overall layer produced by connecting several different individual layers, which is arranged between the first and second pane.

The panes preferably contain glass, particularly preferably flat glass, very particularly preferably float glass, such as soda-lime glass, borosilicate glass or quartz glass, or consist thereof. Alternatively, the panes can contain or consist of clear plastics, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyester, polyvinyl chloride and / or mixtures thereof. The panes are preferably transparent, in particular for the use of the composite pane as a windshield or rear window of a vehicle or other uses in which a high light transmission is desired. Transparent in the context of the invention is then understood to mean a pane that has a transmission in the visible spectral range of greater than 70%. For windows that are not in the driver's field of vision relevant to traffic, for example for roof windows, the transmission can also be much lower, for example greater than 5%.

The composite pane can have any three-dimensional shape. The panes are preferably flat or slightly or strongly curved in one direction or in several directions of the space. In particular, flat disks are used. The discs can be colorless or colored.

The thickness of the panes can vary widely and thus be adapted to the requirements of the individual case. Standard thicknesses of the individual panes are preferably from 1.0 mm to 25 mm, for example from 1.1 mm to 2.0 mm, preferably from 1.4 mm to 2.5 mm, for example 1.6 mm or 2.1 mm for vehicle glass and preferably from 4 mm to 25 mm for furniture, appliances and buildings. The size of the slices can be vary widely and depends on the size of the use according to the invention. The first pane and the second pane have areas of 200 cm ² to 20 m ^{2, which are} common in vehicle construction and architecture, for example.

According to the invention, the module is provided as a vibration module for generating a vibration. The module can be provided to confirm a recognized actuation by means of a vibration or to give the user the impression that a key has been pressed. The concentration and line of sight of the user, in particular a vehicle driver, is not distracted by the fact that he has to direct his gaze in the direction of the touch control element; instead, when he extends his hand in the direction of the touch control element, a switching signal is confirmed to him by vibration.

The vibration of the vibration module can vary in terms of strength, duration and frequency. Different sequences of vibration signals can thus be generated. Depending on the assigned function, the vibration module can generate different vibrations upon actuation of the touch control element. For example, a recognized actuation can be confirmed by a short vibration. It is particularly advantageous if there is a connection between the strength of the vibration and the distance or duration of contact with the user.

In one embodiment of the composite pane arrangement according to the invention, the touch control element and / or the module are / is preferably arranged on a pane of the composite pane, in particular referred to as an inner pane. In the context of the invention, the inner pane is the pane of the composite pane facing the interior (vehicle interior). The outer pane is the term used to describe the pane facing the external environment. Outside surface of the panes here means the surface of the panes that faces outwards, that is, away from the vehicle interior. Inside surface therefore means the surface of the pane that faces the vehicle interior. In the case of the composite window as a vehicle window, it can be, for example, a roof window, a windshield, a rear window, a side window or some other glazing that delimits the vehicle interior. Such an arrangement makes the touch control element particularly easily accessible and the haptic effect is perceived particularly intensively by the user. Furthermore, the module, in particular the vibration module, can be firmly connected to the inner pane. The module is preferably attached to the inner pane with an adhesive.

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

According to a further embodiment, the composite pane is designed as a roof pane of a vehicle and / or the functional element is arranged in or on the composite pane. If the touch control element is actuated by the vehicle driver, this increases driving safety, since the vehicle driver does not have to take his eyes off the road because of the perception of the haptic effect as feedback.

According to a further embodiment, the touch control element, also referred to as a so-called touch control, can be designed as a capacitive or ohmic button. In the case of a capacitive button, the button is designed for capacitive touch detection. In the context of the invention, touch is understood to mean any interaction with the button that leads to the generation of a switching signal. In particular, this is a touch of a surface of the composite pane in an area that results from the orthogonal projection of the touch control element on the surface.

In the case of the capacitive button, the touch control element is preferably formed from an electrically conductive layer. The electrically conductive layer can have, for example, copper, silver, gold or alloys with at least one of the aforementioned materials. For example, the electrically conductive layer can also function as a heating or antenna layer. The electrically conductive layer is preferably transparent. The electrically conductive layer can be arranged directly on an inside surface of the vehicle window or an intermediate layer or on an additional carrier film, preferably a transparent carrier film.

Suitable electrically conductive layers are known, for example, from DE 20 2008 017611 U1, EP 0 847 965 B1 or WO2012 / 052315 A1. They typically contain one or more, 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. The functional layers can consist of the metal or the metal alloy. The functional layers particularly preferably contain silver or an alloy containing silver. Such functional layers have a particularly advantageous electrical conductivity with simultaneous high transmission 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, an advantageously high transmission in the visible spectral range and a particularly advantageous electrical conductivity are achieved.

At least one dielectric layer is typically arranged between two adjacent functional layers. A further dielectric layer is preferably arranged below the first and / or above the last functional layer. A dielectric layer contains at least one single layer made of a dielectric material, for example containing a nitride such as silicon nitride or an oxide such as aluminum oxide. However, the dielectric layer can also comprise a plurality of individual layers, for example individual layers of a dielectric material, smoothing layers, adaptation layers, blocker layers and / or antireflection layers. The thickness of a dielectric layer is, for example, from 10 nm to 200 nm.

Further suitable electrically conductive layers preferably contain indium tin oxide (ITO), fluorine-doped tin oxide (Sn0 ₂ : F) or aluminum-doped zinc oxide (ZnO: Al) or consist of these.

The electrically conductive layer can in principle be any coating that can be electrically contacted. If the composite pane according to the invention is intended to enable transparency, as is the case, for example, with panes in the window area, the electrically conductive layer is preferably transparent. In an advantageous embodiment, the electrically conductive layer is a layer or a layer structure of several individual layers with a total thickness of less than or equal to 2 μm, particularly preferably less than or equal to 1 μm. The formation of a touch control element can be carried out, for example, by pressure or ablative mechanical and / or chemical processes, chemical vapor deposition (CVD), plasma-assisted gas phase deposition (PECVD) and is irrelevant for a more detailed understanding of the invention in the following. This advantageously enables a thin arrangement that can be easily integrated into a composite pane. Furthermore, the touch control element can comprise an IR sensor.

According to a further embodiment of the invention, the electrically conductive layer is arranged on a film which is connected to the vehicle window, the film being introduced between the first window and the second window. In particular, the film can have at least one material selected from the group comprising polyimide, polyurethane, polymethylene methacrylic acid, polycarbonate, polyethylene terephthalate, polyvinyl butyral, FR6, acrylonitrile-butadiene-styrene copolymer, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polybutylene terephthalate, polyamide. The pre-assembly on a foil allows a particularly cost-effective production.

The module and the touch control element are preferably electrically connected to one another via an external control module (ECU) and / or a flat conductor. Both the touch control element and the module can each be electrically connected to one another via a flat conductor, a metallic wire or a stranded conductor. The flat conductor is led out of the composite pane. The composite pane arrangement can then be connected particularly easily at the point of use with a voltage source and a signal line that evaluates the switching signal of the touch control 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 a flat strip conductor or foil conductor) is understood to mean an electrical conductor whose width is significantly greater than its thickness. Such a flat conductor is, for example, a strip or tape containing or consisting of copper, tinned copper, aluminum, silver, gold or alloys thereof. The flat or foil 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 or foil conductor can have an insulating, preferably polymeric sheathing, for example based on polyimide. Foil conductors, which are suitable for contacting electrically conductive layers or modules in panes, only have a total thickness of, for example, 0.3 mm. Such thin film conductors can be arranged simply and aesthetically on the inside surface and, for example, glued on. Several conductive layers that are electrically isolated from one another can be located in a foil conductor strip.

The electrical line connection between the touch control element or the module and the flat conductor is preferably made using electrically conductive adhesives, which enable a secure and permanent electrical line connection between the connection area and the supply line. Alternatively, the electrical line connection can also be made by clamps or spring contacts or the flat conductor can also be printed on a connection area of the touch control element, for example by means of a baked-in, metal-containing and, in particular, silver-containing, electrically conductive printing paste or soldering, in particular ultrasonic soldering.

A switching signal is either transmitted directly from the touch control element to the module or evaluated by the control module and passed on to the module to generate a haptic effect.

Such a composite pane arrangement can then be particularly simple on

The place of use can be connected to a voltage source and a signal line which evaluates a switching signal from the control module, for example in a vehicle via a CAN bus. The output switching signals can be arbitrary and adapted to the requirements of the respective use. The switching signal can mean a positive voltage, for example 12 V, no switching signal can mean 0 V, for example, and another switching signal can mean + 6 V, for example. The switching signals can also correspond to the common voltages CAN_High and CAN_Low on a CAN bus and change by a voltage value in between. The switching signal can also be pulsed and / or digitally coded.

According to a further embodiment, the module can be arranged between an inner pane of the roof pane and a panel, in particular a vehicle panel, in the viewing direction of the roof pane so that it is covered by the panel. With such an arrangement it is possible to increase the intensity of the haptic effect, in particular the vibration. According to yet another embodiment of the invention, the composite pane has a cover print, in particular black, on at least one section on the edge of the first or second pane. The module can be covered by the opaque cover print in the viewing direction of the composite pane, in particular a windshield. This significantly improves the visual appearance of the composite pane installed in a vehicle. In addition, the touch control element and the module can be placed below the cover print so that they remain optically invisible and thus do not disturb the aesthetic impression.

In an advantageous embodiment of the composite pane according to the invention, the touch control element and the module are arranged on the outer edge of the composite pane. The distance to the outer edge is preferably less than 10 cm, particularly preferably less than 0.5 cm. This allows electrical contact to be made with the touch control element, for example with a flat conductor, under the optically inconspicuous cover print.

Another aspect of the invention comprises the use of the composite pane arrangement according to the invention in means of locomotion for traffic in the country, in the air or on water, in particular in motor vehicles, for example as a windshield, rear window, side windows and / or roof window.

The invention is explained in more detail below with reference to figures and exemplary embodiments. The figures are a schematic representation and are not true to scale. The figures do not restrict the invention in any way.

Show it:

Figure 1 is a cross-sectional view of an inventive

Composite pane arrangement,

FIG. 2 shows an embodiment of the composite pane arrangement according to the invention as a roof pane,

Figure 3 is a cross-sectional view of a further alternative embodiment of a composite pane arrangement according to the invention with a Vibration module on an outside surface of an inner pane, and

FIG. 4 shows a cross-sectional view of a further alternative embodiment of a composite pane arrangement according to the invention with a vibration module on an inside surface of an inner pane.

Figures with numerical values are generally not to be understood as exact values, but also include a tolerance of +/- 1% up to +/- 10%.

FIG. 1 shows a cross-sectional view of a composite pane arrangement 1 according to the invention. The composite pane arrangement 1 here comprises, for example, a composite pane 2, a touch control element 3 and a module 4, in particular a vibration module. The composite pane 2 comprises a first pane 5 and a second pane 6, which are connected to one another via an intermediate layer 7 made of a PVB film. The module 4 is firmly attached to the second pane 6 and to the touch control element 3. In order to ensure the possibility of recognizing a touch detected by the touch control element, the module is intended to generate a haptic effect.

The touch control element 3 and the module 4 are each connected in an electrically conductive manner to a flat conductor 9 via an electrical line connection. A secure electrically conductive connection is preferably achieved by an electrically conductive adhesive. The flat conductor 9 consists, for example, of a 50 μm thick copper foil and is insulated, for example, with a polyimide layer. The flat conductor 9 is here, for example, connected to a control module (ECU) outside the composite pane 2. The control module has capacitive sensor electronics that can evaluate and generate a switching signal. The sensor electronics are suitable for precisely measuring changes in capacitance of the switching area in relation to a surrounding area and, as a function of a threshold value, transmitting a switching signal, for example to the CAN bus of a vehicle.

Any functions in the vehicle can be switched using the switching signal. For example, lighting in or on a composite pane can be switched on or off. Depending on the switching signal, the haptic effect, for example a vibration, is generated via the module 4. A vibration signal or a the exact vibration sequence is stored in the control module. For example, when the touch control element 3 is actuated, ie when the switching area is touched, the control module can initiate a brief vibration. The vibration haptically confirms to the vehicle driver that a switching signal has been generated without the vehicle driver having to change his line of sight. The strength of the vibration can increase the smaller the distance between the finger of the vehicle user and the touch control element.

The first disk 5 and second disk 6 each consist, for example, of soda-lime glass and were manufactured using the float process. The second pane 6 has a layer 8 over almost its entire outer surface. The layer 8 is an electrically conductive layer which is divided into different, electrically isolated areas by coating-free separating lines. In this example, electrically isolated means that the areas are galvanically separated from one another, i.e. that no direct current (DC) can flow between the areas. The width of the dividing lines is 30 pm to 200 pm and preferably 70 pm to 140 pm. Such thin dividing lines allow a reliable and sufficiently high electrical insulation and at the same time do not interfere with the view through the composite pane or only slightly.

In the edge region of the composite pane 2, the layer 8 has, for example, the touch control element which comprises a capacitive button. The touch control element generates an electrical field 10 (only indicated here) which extends within an activation area. The activation region is arranged over a surface parallel to the inside surface and extends in the direction of the interior. The activation area can preferably have a width of less than or equal to 10 cm in the direction of the interior. With the aid of the provided activation area, an object, for example a human finger 11, can be detected and a signal can be generated. If an object is moved into the activation area, the object causes a change in the electrical field, which is detected by the capacitive button.

The lateral edges of the composite pane 2 are covered by a cover 13 of the vehicle. The touch control element 3 can alternatively be designed in the form of a prefabricated patch. In this case, an electrically conductive layer, for example made of silver (Ag), is applied to a film made of, for example, PET (polyethylene terephthalate), the touch control element 3 being incorporated into the conductive layer, for example by means of a laser. The patch is laminated into the transparent composite protective pane 2.

FIG. 2 shows an embodiment of the composite pane arrangement 1 according to the invention as a roof pane in a motor vehicle. The driver of the motor vehicle looks through a windshield 15. His field of vision 16 through the windshield 15 is indicated by a dashed line.

The composite pane 2 here additionally comprises, for example, a functional element 12 which is embedded in the intermediate layer 7. The intermediate layer 7 here comprises a total of three thermoplastic layers, each of which is formed by a thermoplastic film with a thickness of 0.38 mm made of PVB. The first thermoplastic layer is connected to the first pane 5, the second thermoplastic layer to the second pane 6. The intervening third thermoplastic layer laterally surrounds the functional element 12. The functional element 12 is a PDLC functional element that functions as a controllable sun visor. The driver can operate the PDLC functional element via the touch control element 3 depending on the position of the sun.

The dimensions of the composite pane 2 are, for example, 0.9 m × 1.5 m. The composite pane 2 is provided, for example, to separate a vehicle interior from an external environment in the installed position. That is, the inside surface of the second pane 6 is accessible from the interior, whereas the outside surface of the second pane 6 faces outwards with respect to the vehicle interior. The thickness of the first disk 5 is 2.1 mm, for example. In principle, the first disk 5 can also have other thicknesses. For example, the first disk 5 can have a thickness of 4 mm. The thickness of the second disk 6 is, for example, 1.6 mm.

In this case, the arrangement of the touch control element 3 is selected so that the driver of the vehicle can comfortably reach the activation area of the touch control element 3 via his head. In the illustrated embodiment, the structure is coordinated in such a way that a switching signal is triggered when the hand moves within the activation area, ie on the inside surface in FIG. 2 of the second pane 6 above the capacitive button. The module 4 generates a vibration as feedback in response to the actuation of the touch control element 3 without the driver having to take his eyes off the road.

FIG. 3 shows a further alternative embodiment of a composite pane arrangement 1 according to the invention with the module 4 as a vibration module on an outside surface of the second pane 6, an inner pane of a vehicle. In this example, the composite pane 2 comprises the first pane 5 and the second pane 6, which are connected to one another via the intermediate layer 7 made of a PVB film. The inside surface of the second pane 6 has the electrically conductive layer 8 and the touch control element 3. In other words, the touch control element 3 is arranged on a surface of the second pane 6 facing away from the intermediate layer 7. The layer 8 can be a so-called low-E coating.

Such low-E coatings have functional layers made of ITO, for example, and comprise the following layer stacks: pane / adhesive layer / functional layer / barrier layer / antireflection layer. The low-E coating has the advantage of being corrosion-resistant. The Low-E coating can therefore be applied to the surface of the second pane 6. The second pane 6 is provided in the installed position to face an interior space, for example a vehicle or a building. On this surface, the Low-E coating is particularly effective in reducing the radiation of heat from the pane into the interior in summer and the radiation of heat to the outside environment in winter.

The module 4 is firmly attached to the second pane 6. Both the touch control element 3 and the module 4 are covered in the viewing direction through the composite pane 2 by a black cover print 14 and are thus invisible to the viewer.

FIG. 4 shows a further alternative embodiment of a composite pane arrangement 1 according to the invention with the module 4 as a vibration module on an outside surface of the second pane 6 (inner pane). The composite pane 2 also includes in this example the first pane 5 and the second pane 6, which are connected to one another via the intermediate layer 7 made of a PVB film, the electrically conductive layer 8 and the touch control element 3 being arranged on the inside surface of the second pane 6 are. The composite pane 2 is installed in the installed position in a vehicle.

The lateral edges of the composite pane 2 are covered by a panel 13, in particular made of plastic, of the vehicle. The module 4 is firmly attached to the second pane 6 by means of an adhesive connection. In other words, the module 4 is arranged on a surface of the second pane 6 facing away from the intermediate layer 7. The module 4 is arranged on the pane 6 in such a way that it is covered by the panel 13 in one viewing direction. The touch control element 3 is arranged, analogous to FIG. 3, in a viewing direction through the composite pane 2, covered by a black cover print.

List of reference symbols:

1 composite pane arrangement

2 composite pane

3 touch control element

4 module

5 first disc

6 second disc

7 intermediate layer

8 electrically conductive layer

9 flat conductors

10 electric field

11 fingers

12 functional element

13 aperture

14 masking print

15 windshield

16 Driver's field of vision

Claims

A composite pane assembly (1) comprising:

- A composite pane (2) which has a first pane (5), a second pane (6) and a thermoplastic intermediate layer (7), the first pane (5) and the second pane (6) via the thermoplastic intermediate layer (7) are connected to each other,

- A touch control element (3) as a switching element for controlling an electrically controllable functional element (12), and

- A module (4) that can be electrically connected to the touch control element (3), the module (4) being provided as a vibration module for generating a haptic effect in the form of a vibration as feedback in response to an actuation of the touch control element (3) , characterized in that the vibration varies with respect to strength, duration and frequency.

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

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

4. Composite pane arrangement (1) according to one of claims 1 to 3, characterized in that the module (4) is firmly connected to the second pane (6).

5. composite pane arrangement (1) according to one of claims 1 to 4, characterized in that the module (4) comprises a piezo actuator.

6. composite pane arrangement (1) according to one of claims 1 to 5, characterized in that the touch control element (3) comprises a capacitive or ohmic button.

7. composite pane arrangement (1) according to one of claims 1 to 6, characterized in that the touch control element (3) comprises an IR sensor.

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

9. Composite pane arrangement (1) according to one of claims 3 to 8, characterized in that the module (4) between the second pane (6) of the roof pane and a panel (13), in particular a vehicle panel, is arranged in a concealable manner in the viewing direction of the roof panel .

10. Composite pane arrangement (1) according to one of claims 2 to 9, characterized in that the module (4) is covered by an opaque cover print in the viewing direction of the composite pane (2).

11. Composite pane arrangement (1) according to one of claims 1 to 10, characterized in that the touch control element (3) and / or the module (4) is arranged on a surface of the second pane (6) facing away from the intermediate layer (7).

12. Composite pane arrangement (1) according to one of claims 1 to 11, characterized in that the functional element (12) is a PDLC functional element and / or a light source.

13. Composite pane arrangement (1) according to one of claims 1 to 12, characterized in that touch control element (3) is provided for the electrical control of the optical transparency of the functional element (12).

14. Use of the composite pane arrangement (1) according to one of claims 1 to

13 in means of locomotion for traffic on land, in the air or on water, in particular in motor vehicles, for example as a windshield, rear window, side windows and / or roof window.