Pane with high-frequency transmission

Patent metadata

Field	Value
Publication number	US-9878597-B2
Application number	US-201314433855-A
Country	US
Kind code	B2
Filing date	Sep 27, 2013
Priority date	Oct 15, 2012
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

A panel, having at least: at least one first panel having an outer face and an inner face, at least one transparent, electrically-conductive coating, which is arranged on the outer face and/or on the inner face of the first panel, and at least one region having at least one outer de-coated structure and one inner de-coated structure, the transparent, electrically-conductive coating being located between the outer de-coated structure and the inner de-coated structure and inside the inner de-coated structure.

First claim

The invention claimed is:

1. A pane, comprising:
at least one first pane with an outer face and an inner face,
at least one transparent, electrically conductive coating, which is arranged on at least one of the outer face and the inner face of the first pane, and
at least one region with at least one outer de-coated structure and one inner de-coated structure, wherein the outer de-coated structure and the inner de-coated structure have a same shape,
wherein the transparent, electrically conductive coating is situated between the outer de-coated structure and the inner de-coated structure,
wherein the region between the outer de-coated structure and the inner de-coated structure is completely filled with the transparent, electrically conductive coating, and
wherein the inner de-coated structure is completely surrounded on its inner edge by the transparent electrically conductive coating.

2. The pane according to claim 1 , wherein the outer de-coated structure and the inner de-coated structure have the shape of a square, a rectangle, a rhombus, a trapezoid, a hexagon, an octagon, a cross, an oval, or a circle.

3. The pane according to claim 1 , wherein a distance of the outer de-coated structure from the inner de-coated structure is from 0.5 mm to 30 mm.

4. The pane according to claim 3 , wherein a distance of the outer de-coated structure from the inner de-coated structure is from 1 mm to 5 mm.

5. The pane according to claim 3 , wherein a distance of the outer de-coated structure from the inner de-coated structure is constant.

6. The pane according to claim 1 , wherein a line width of at least one of the outer de-coated structure and of the inner de-coated structure is from 25 μm to 300 μm.

7. The pane according to claim 6 , wherein the line width of the at least one of the outer de-coated structure and the inner de-coated structure is from 30 μm to 140 μm.

8. The pane according to claim 1 , wherein a minimum distance between adjacent regions is from 1 mm to 100 mm.

9. The pane according to claim 8 , wherein a minimum distance between adjacent regions is from 1 mm to 20 mm.

10. The pane according to claim 1 , wherein the transparent, electrically conductive coating has at least four regions.

11. The pane according to claim 10 , wherein the transparent, electrically conductive coating has 10 to 50 regions.

12. The pane according to claim 10 , wherein the regions are arranged horizontally.

13. The pane according to claim 10 , wherein the regions are arranged vertically.

14. The pane according to claim 1 , wherein the at least one first pane contains glass, polymers, or mixtures thereof.

15. The pane according to claim 14 , wherein the at least one first pane contains flat glass, float glass, quartz glass, borosilicate glass or soda lime glass.

16. The pane according to claim 14 , wherein the at least one first pane contains polyethylene, polypropylene, polycarbonate or polymethyl methacrylate.

17. The pane according to claim 14 , wherein the at least one first pane has an effective relative permittivity ∈ eff from 2 to 8.

18. The pane according to claim 14 , wherein the at least one first pane has an effective relative permittivity ∈ eff from 6 to 8.

19. The pane according to claim 1 , wherein a length of at least one of the outer de-coated structure and the inner de-coated structure is from 10 mm to 150 mm.

20. The pane according to claim 1 , wherein the transparent, electrically conductive coating contains:
(i) at least one metal, or
(ii) at least one metal oxide layer, or
(iii) carbon nanotubes, or
(iv) optically transparent, electrically conductive polymers, or
(v) mixtures of at least two of (i) to (iv).

21. The pane according to claim 20 , wherein the transparent, electrically conductive coating contains silver, nickel, chromium, niobium, tin, titanium, copper, palladium, zinc, gold, cadmium, aluminum, silicon, tungsten, or alloys thereof.

22. The pane according to claim 20 , wherein the transparent, electrically conductive coating contains tin-doped indium oxide (ITO), aluminum-doped zinc oxide (AZO), fluorine-doped tin oxide (FTO, SnO 2 :F), antimony-doped tin oxide (ATO, SnO 2 :Sb).

23. The pane according to claim 20 , wherein the transparent, electrically conductive coating contains poly(3,4-ethylenedioxythiophenes), polystyrene sulfonate, poly(4,4-dioctyl cylopentadithiophene), 2,3-dichloro-5,6-dicyano-1,4-benzoquinone, mixtures or copolymers thereof.

24. A composite pane at least comprising:
the pane according to claim 1 and
a second pane, which is areally bonded to the pane via at least one intermediate layer.

25. A method, comprising:
applying the pane according to claim 1 as a glazing with low transmission attenuation for high-frequency electromagnetic radiation, in a vehicle body or in a vehicle door of a means of transportation on land, on water, or in the air, in buildings as part of an external façade or of a building window, or as a built-in part in furniture and appliances.

26. The pane according to claim 1 , wherein the outer de-coated structure and the inner de-coated structure are arranged concentrically to one another.

27. The pane according to claim 1 , wherein the at least one region has an area that has an area fraction of 7% to 25% of the pane.

28. The pane according to claim 1 , wherein a length l of at least one of the outer de-coated structure and the inner de-coated structure is from λ/(7*√{square root over (∈ eff )}) to (3*λ)/(2*√{square root over (∈ eff )}) and/or a ratio of a distance b between the outer de-coated structure and the inner de-coated structure, to the length l, is less than or equal to ⅕, wherein λ indicates a wavelength of a transmission signal with low attenuation through the pane and ∈ eff indicates an effective relative permittivity of the pane.

29. The pane according to claim 1 , wherein a ratio of a distance b between the outer de-coated structure and the inner de-coated structure, to a length l of at least one of the outer de-coated structure and the inner de-coated structure, is less than or equal to ⅕.

30. The pane according to claim 1 , wherein the transparent, electrically conductive coating has a sheet resistance from 0.35 ohm/square to 200 ohm/square.

31. The pane according to claim 1 , wherein the transparent, electrically conductive coating has a sheet resistance from 0.6 ohm/square to 30 ohm/square.

32. A method for producing a pane, the method comprising:
providing at least one first pane with an outer face and an inner face;
providing at least one transparent, electrically conductive coating;
applying a transparent, electrically conductive coating on the outer face or the inner face of the at least one first pane; and
introducing at least one region with at least one outer de-coated structure and one inner de-coated structure into the at least one transparent, electrically conductive coating,
wherein the at least one transparent, electrically conductive coating is situated between the outer de-coated structure and the inner de-coated structure,
wherein the outer de-coated structure and the inner de-coated structure have a same shape,
wherein the region between the outer de-coated structure and the inner de-coated structure is completely filled with the transparent, electrically condu

Assignees

• Saint Gobain

Inventors

• Rousselet Noemie
• Droste Stefan
• Behmke Michael
• Stelling Bernd

Classifications

• H01Q1/1271

  for mounting on windscreens · CPC title

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• H01Q15/0013

  said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective · CPC title

• B32B17/10192

  patterned in the form of columns or grids · CPC title

• B32B2367/00

  Polyesters, e.g. PET, i.e. polyethylene terephthalate · CPC title