Display device

Patent metadata

Field	Value
Publication number	US-9371969-B2
Application number	US-201214119910-A
Country	US
Kind code	B2
Filing date	May 4, 2012
Priority date	Jun 6, 2011
Publication date	Jun 21, 2016
Grant date	Jun 21, 2016

Abstract

A display device is provided that is a transparent, colored glass-ceramic with a front-side indication side, a rear-side illumination side, and at least one luminous element disposed in the region of the illumination side. The display device further includes a color compensation filter and a at least partially transparent intermediate layer between the color compensation filter and the glass-ceramic.

First claim

The invention claimed is:

1. A cooktop display device comprising:
a transparent, colored glass-ceramic product forming a cooking surface, the glass-ceramic product having a display face on a front and an illumination face on a back;
at least one light-emitting element disposed in the region of the illumination face;
a color compensation filter disposed between the glass-ceramic product and the at least one light-emitting element; and
an at least partially transparent intermediate layer disposed between the color compensation filter and the glass-ceramic product.

2. The display device according to claim 1 , wherein the at least partially transparent intermediate layer joins the color compensation filter directly or indirectly to the glass-ceramic product.

3. The display device according to claim 2 , wherein the at least partially transparent intermediate layer is a transparent adhesive or a colored adhesive.

4. The display device according to claim 1 , wherein the at least partially transparent intermediate layer comprises an adhesive layer.

5. The display device according to claim 4 , wherein the adhesive layer faces at least one of the glass-ceramic product and the color compensation filter.

6. The display device according to claim 4 , wherein the at least partially transparent intermediate layer is an adhesive tape.

7. The display device according to claim 1 , wherein the glass-ceramic product further comprises texturing in a region of the illumination face, the at least partially transparent intermediate layer being applied on the texturing.

8. The display device according to claim 1 , wherein the at least partially transparent intermediate layer has or is composed of a material selected from the group consisting of a silicone material, an acrylate material, a polyurethane resin material, an epoxy material, a rubber material, a polyamide material, a polyimide material, and combinations thereof.

9. The display device according to claim 1 , wherein the glass-ceramic product has a refractive index that deviates from a refractive index of the at least partially transparent intermediate by a maximum of 20%.

10. The display device according to claim 1 , further comprising one or more layer elements, the one or more layer elements being on a location selected from the group consisting of the color compensation filter, the at least partially transparent intermediate, and combinations thereof.

11. The display device according to claim 1 , wherein the color compensation filter is a flat-surface element selected from the group consisting of a foil, a film, a matte, and a panel, the flat-surface element being having a color layer.

12. The display device according to claim 1 , wherein the glass-ceramic product has a smooth, non-textured surface in a region of the illumination face.

13. The display device according to claim 1 , wherein the at least partially transparent intermediate layer is formed by individual partial layer elements.

14. The display device according to claim 1 , further comprising one or more mounting or retaining parts in a region of the illumination face.

15. The display device according to claim 14 , wherein the one or more mounting or retaining parts are in a location selected from the group consisting of on the at least partially transparent intermediate layer, on the color compensation filter, and on the glass-ceramic product.

16. The display device according to claim 14 , wherein the mounting or retaining parts hold the color compensation filter.

17. The display device according to claim 14 , wherein the mounting or retaining parts hold an electrical component selected from the group consisting of a light-emitting element, a printed circuit board, and a sensor.

18. The display device according to claim 1 , further comprising a light-scattering panel formed by at least one of the at least partially transparent intermediate layer and the color compensation filter.

19. The display device according to claim 1 , further comprising an element selected from the group consisting of an electrically conductive track, a switching element, an electrode, and a sensor.

20. The display device according to claim 19 , wherein the element is provided in a position selected from the group consisting of on the color compensation filter, on the at least partially transparent intermediate layer, on an additional intermediate layer disposed between the at least one light-emitting element and the glass-ceramic product.

21. The display device according to claim 1 , wherein the at least partially transparent intermediate layer is a colored layer having a thickness that fluctuates a maximum of 25% of the respective layer thickness.

22. The display device according to claim 1 , wherein the color compensation filter has a thickness that fluctuates a maximum of 25% of the respective layer thickness.

23. A display device comprising:
a transparent, colored glass-ceramic product having a display face on a front and an illumination face on a back, the glass-ceramic product further comprises texturing in a region of the illumination face;
at least one light-emitting element disposed in the region of the illumination face;
an at least partially transparent intermediate layer on the texturing to form a planar surface; and
a color compensation filter disposed on the planar surface between the glass-ceramic product and the at least one light-emitting element.

24. A display device comprising:
a transparent, colored glass-ceramic product having a display face on a front and an illumination face on a back;
at least one light-emitting element disposed in the region of the illumination face;
a color compensation filter disposed between the glass-ceramic product and the at least one light-emitting element;
an at least partially transparent intermediate layer disposed between the color compensation filter and the glass-ceramic product; and
an element selected from the group consisting of an electrically conductive track, a switching element, an electrode, and a sensor, wherein the element is provided in a position selected from the group consisting of on the filter, on the intermediate layer, on an additional intermediate layer disposed between the light-emitting element and the glass-ceramic product.

Assignees

• Zenker Thomas
• Taplan Martin
• Ohl Gerold
• Heinrich Silke
• Schott Ag

Inventors

• Zenker Thomas
• Taplan Martin
• Ohl Gerold
• Heinrich Silke

Classifications

• H05B6/1218

  with arrangements using lights for heating zone state indication · CPC title

• B25H3/003 Primary

  Holders for drill bits or the like · CPC title

• F21K9/64

  using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer · CPC title

• F24C7/083

  on tops, hot plates · CPC title

• G02B5/226

  Glass filters · CPC title