Laminate for see-through electrodes, see-through electrode material, device and method for producing laminate for see-through electrodes

Patent metadata

Field	Value
Publication number	US-10691276-B2
Application number	US-201716318695-A
Country	US
Kind code	B2
Filing date	Jun 28, 2017
Priority date	Jul 26, 2016
Publication date	Jun 23, 2020
Grant date	Jun 23, 2020

Abstract

A laminate for a see-through electrode includes a transparent base and a metal layer that is provided on at least one of both surfaces of the transparent base. The metal layer has a first surface and a second surface, the first surface facing the transparent base, the second surface being at a side opposite to the first surface. And the second surface has a kurtosis (Rku) ranging from 1.00 to 3.10, inclusive.

First claim

The invention claimed is:

1. A laminate for a see-through electrode, the laminate comprising:
a transparent base; and
a metal layer that is provided on at least one of both surfaces of the transparent base, wherein:
the metal layer has a first surface and a second surface, the first surface facing the transparent base, the second surface being at a side opposite to the first surface, and the second surface has a kurtosis (Rku) ranging from 1.00 to 3.10, inclusive, and a surface roughness (Rz) ranging from 0.89 μm to 2.0 μm, inclusive.

2. The laminate according to claim 1 , further comprising a transparent adhesive layer between the transparent base and the metal layer.

3. The laminate according to claim 2 , wherein the transparent adhesive layer contains at least one of an acrylic resin, an epoxy resin, a urethane resin, and a mixed resin of an acrylic resin, an epoxy resin, and a urethane resin.

4. The laminate according to claim 2 , wherein hardness of the transparent adhesive layer ranges from 1.0 N/mm 2 to 200 N/mm 2 , inclusive.

5. The laminate according to claim 1 , wherein the metal layer contains at least one kind selected from a group consisting of copper, nickel, aluminum, and silver.

6. The laminate according to claim 1 , wherein the second surface of the metal layer is blackened.

7. A material for a see-through electrode, the material comprising the laminate according to claim 1 , wherein the metal layer partly includes a circuit pattern having an opening.

8. A material including a laminate for a see-through electrode, the laminate comprising:
a transparent base; and
a metal layer that is provided on at least one of both surfaces of the transparent base, wherein:
the metal layer has a first surface and a second surface, the first surface facing the transparent base, the second surface being at a side opposite to the first surface,
the second surface has a kurtosis (Rku) ranging from 1.00 to 3.10, inclusive,
the metal layer partly includes a circuit pattern having an opening, and
sheet resistance of the material ranges from 0.01 Ω/sq to 50 Ω/sq, inclusive.

9. The material according to claim 7 , wherein total light transmittance is greater than or equal to 60%.

10. A device comprising:
the material according to claim 7 ; and
a control circuit that is electrically connected to the circuit pattern layer.

11. A method of producing a laminate for a see-through electrode, the method comprising:
a first step of preparing a transparent base, the transparent base having a first main surface and a second main surface, the first main surface having a kurtosis (Rku) ranging from 1.00 to 3.10, inclusive, and a surface roughness (Rz) ranging from 0.89 μm to 2.0 μn, inclusive; and
a second step of forming a metal layer on the first main surface by physical vapor deposition.

12. The method according to claim 11 , wherein the second main surface has a kurtosis (Rku) ranging from 1.00 to 3.10, inclusive.

13. A method of producing a laminate for a see-through electrode, the method comprising:
a first step of producing a metal layer with a support by preparing the support having a first main surface and a second main surface, the first main surface having a kurtosis (Rku) ranging from 1.00 to 3.10, inclusive, and a surface roughness (Rz) ranging from 0.89 μm to 2.0 μm, inclusive, forming a peeling layer on the first main surface, and then forming the metal layer on the peeling layer by electroplating;
a second step of producing a transparent base with a transparent adhesive layer by preparing the transparent base, and forming the transparent adhesive layer on at least one of both surfaces of the transparent base; and
a third step of bonding a surface of the metal layer with the support on which the metal layer is provided and a surface of the transparent base with the transparent adhesive layer on which the transparent adhesive layer is provided, and then peeling off the support and the peeling layer from the metal layer.

14. The method according to claim 13 , wherein in the first step, blackening treatment is subjected to the metal layer formed on the peeling layer.

15. A method of producing a laminate for a see-through electrode, the method comprising:
a first step of producing a metal layer with a support by preparing the support having a first main surface and a second main surface, the first main surface having a kurtosis (Rku) ranging from 1.00 to 3.10, inclusive, forming a peeling layer on the first main surface, and then forming the metal layer on the peeling layer by electroplating;
a second step of producing a transparent base with a transparent adhesive layer by preparing the transparent base, and forming the transparent adhesive layer on at least one of both surfaces of the transparent base; and
a third step of bonding a surface of the metal layer with the support on which the metal layer is provided and a surface of the transparent base with the transparent adhesive layer on which the transparent adhesive layer is provided, and then peeling off the support and the peeling layer from the metal layer,
wherein the first step includes:
preparing an electrolytic metal foil by an electrolytic step in which an electrodeposition drum is used, the electrolytic metal foil including a first main surface in contact with the electrodeposition drum and a second main surface not in contact with the electrodeposition drum;
applying smoothing treatment to the first main surface of the electrolytic metal foil; and
producing the support from the electrolytic metal foil applied with the smoothing treatment.

16. The method according to claim 15 , wherein in the applying the smoothing treatment, an electroplated coating is electrodeposited on the first main surface of the electrolytic metal foil by electroplating.

17. The method according to claim 15 , wherein in the applying the smoothing treatment, the first main surface of the electrolytic metal foil is polished by electrochemical polishing.

18. The laminate for see-through electrode producing method according to claim 15 , wherein in the applying the smoothing treatment, the first main surface of the electrolytic metal foil is polished by chemical polishing.

19. A method of producing a laminate for a see-through electrode, the method comprising:
a first step of producing a metal layer with a support by preparing the support having a first main surface and a second main surface, the first main surface having a kurtosis (Rku) ranging from 1.00 to 3.10, inclusive, forming a peeling layer on the first main surface, and then forming the metal layer on the peeling layer by physical vapor deposition;
a second step of producing a transparent base with a transparent adhesive layer by preparing the transparent base, and forming the transparent adhesive layer on at least one of both surfaces of the transparent base; and
a third step of bonding a surface of the metal layer with the support on which the metal layer is provided and a surface of the transparent base with the transparent adhesive layer on which the transparent adhesive layer is provided, and then peeling off the support and the peeling layer from the metal layer.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Kuwabara Shin

Classifications

• C25D5/627

  Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance · CPC title

• C25D5/611

  Smooth layers · CPC title

• C25D5/10

  Electroplating with more than one layer of the same or of different metals (for bearings C25D7/10) · CPC title

• C25F3/16

  Polishing · CPC title

• C23F3/06

  with acidic solutions · CPC title