LAMINATED GLASS PANE AND METHOD FOR THE PRODUCTION THEREOF

Abstract

A laminated glass pane includes two glass or polycarbonate panes and at least one polymer film or a film laminate bonded therebetween and an electronic functional unit arranged therebetween, wherein, in part of the area of the laminated glass pane, a cutout of the polymer film or of the film laminate is provided and, accommodated in the cutout, is a fully prefabricated electronic functional module including multiple electronic functional units and/or other parts that are arranged within the functional module laterally alongside one another and/or at least partially vertically overlapping in an electrically and mechanically protective insulating shell, in particular an encapsulation composed of a polymeric casting compound that has a thickness that is at most equal to the thickness of the polymer film or of the film laminate.

Claims

1. A laminated glass pane comprising two glass or polycarbonate panes and at least one polymer film or a film laminate bonded therebetween and an electronic functional unit arranged therebetween, wherein, in part of an area of the laminated glass pane, a cutout of the polymer film or of the film laminate is provided and, accommodated in the cutout, is a fully prefabricated electronic functional module comprising multiple electronic functional units and/or other parts that are arranged within the functional module laterally alongside one another and/or at least partially vertically overlapping in an electrically and mechanically protective insulating shell.

2. The laminated glass pane according to claim 1, implemented as a front window or rear window or roof glazing of a vehicle, wherein the cutout of the polymer film or of the film laminate and the prefabricated electronic functional module are arranged at or near an edge of the laminated glass pane.

3. The laminated glass pane according to claim 1, wherein a thickness of the polymer film or of the film laminate and of the electronic functional module is less than 1.2 mm.

4. The laminated glass pane according to claim 1, wherein the electronic functional module has the shape of a flat prism or of a flat circular disk.

5. The laminated glass pane according to claim 4, wherein two main surfaces of the flat prism or of the flat circular disk are coated with adhesive for bonding the electronic functional module between the glass or polycarbonate panes.

6. The laminated glass pane according to claim 1, wherein the electronic functional module comprises at least one of the following functional units: a moisture sensor, a light sensor, a temperature sensor, an antenna, an actuator, an electronic processing or switching unit, an LCD display unit, and an LED display unit.

7. The laminated glass pane according to claim 1, wherein the electronic functional module includes an integrally prefabricated electrical supply line that is accommodated in a supply line cutout of the polymer film or of the film laminate.

8. A vehicle comprising at least one laminated glass pane according to claim 1.

9. A method for producing a laminated glass pane according to claim 1, comprising: providing a first and second glass or polycarbonate pane, providing a polymer film or a film laminate for bonding the first and second glass or polycarbonate pane, with a cutout provided therein, providing a fully prefabricated electronic functional module, whose cross-sectional shape is matched to a shape of the cutout in the polymer film or the film laminate and whose thickness is at most equal to a thickness of the polymer film or of the film laminate, gluing the polymer film and placing the prefabricated electronic functional module on a surface of the first or second glass or polycarbonate pane, placing the second glass or polycarbonate pane on the resultant composite, and laminating the composite with the second glass or polycarbonate pane placed thereon to complete the laminated glass pane, wherein the provision of the fully prefabricated electronic functional module completes the creation of an insulating encapsulation of the functional units and/or parts contained therein.

10. The method according to claim 9, wherein the provision of the electronic functional module includes the coating of two opposite, parallel main surfaces thereof with an adhesive.

11. The method according to claim 9, wherein the provision of the fully prefabricated electronic functional module includes providing it with an electrical connection line, in particular in the form of a ribbon cable.

12. The laminated glass pane according to claim 1, wherein the mechanically protective insulating shell is an encapsulation composed of a polymeric casting compound that has a thickness that is at most equal to a thickness of the polymer film or of the film laminate.

13. The laminated glass pane according to claim 3, wherein the thickness of the polymer film or of the film laminate and of the electronic functional module is in the range between 0.6 mm and 1.0 mm.

14. The laminated glass pane according to claim 4, wherein the electronic functional module has the shape of a flat cuboid.

15. The vehicle according to claim 8, wherein the vehicle is a road vehicle.

16. The method according to claim 9, wherein the insulating encapsulation is an encapsulation with a casting compound.

Description

[0019] Advantages and practicalities of the invention are also evident from the following description of exemplary embodiments with reference to the figures. They depict:

[0020] FIG. 1a and 1b schematic representations (plan view and sectional view) of an exemplary embodiment of the invention and

[0021] FIG. 2 a schematic representation to explain the method according to the invention.

[0022] FIG. 1a schematically depicts a plan view of a passenger car front window 1 in accordance with an exemplary embodiment of the invention, and FIG. 1b depicts a sectional view of the same, along a sectional plane A-A. The front window 1 is formed as a laminated glass pane with a first and second glass pane 1a, 1b and a polymer film 1c bonded between the glass panes. In a region near the upper edge of the front window, a cutout 1d is provided in the polymer film 1c, in which cutout an electronic functional module 2 is inserted between the first and second glass pane 1a, 1b. The functional module 2 includes a connection line (ribbon cable) 2a manufactured integrally therewith.

[0023] FIG. 2 schematically depicts essential steps in the production of the laminated glass pane depicted in FIG. 1.

[0024] In a step S1, an electronic functional unit 2b and another part 2c and a prefabricated supply line 2a′ are preassembled to form a functional module structure 2′. In a step S2, the functional module structure 2′ is encapsulated with a casting compound in an insulating and mechanically protective manner and provided on both sides with an adhesive coating (not shown), thus obtaining the finished electronic functional module 2. In a step S3, a PVB film 1c′ is provided with a cutout 1d matched to the lateral dimensions of the electronic functional module 2 and yields the preconfigured PVB film 1c, as depicted in FIG. 1.

[0025] In a first step S4 of a so-called in-line process, the configured PVB film 1c and the prefabricated electronic functional module 2 are mounted on the first glass pane 1a, and in a subsequent step S5, the second glass pane 1b is placed on this preassembled assembly, and the stack is laminated in the usual manner to form the laminated glass pane 1.

[0026] The implementation of the invention is not restricted to the example explained above, but is also possible in a large number of modifications that are within the scope of the attached claims.

LIST OF REFERENCE CHARACTERS

[0027] 1 laminated glass pane

[0028] 1a, 1b first and second glass pane

[0029] 1c polymer film (PVB film)

[0030] 1d cutout in the polymer film

[0031] 2 electronic functional module

[0032] 2′ functional module structure

[0033] 2a integrated supply line

[0034] 2a′ prefabricated supply line

[0035] 2b electronic functional unit

[0036] 2c part of the functional module