Conductive film, touch panel sensor, and touch panel

Patent metadata

Field	Value
Publication number	US-11216123-B2
Application number	US-202017015783-A
Country	US
Kind code	B2
Filing date	Sep 9, 2020
Priority date	Mar 26, 2018
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

The present invention provides a conductive film in which a change in the surface state is suppressed and the light-fast adhesiveness of a protective layer is excellent, a touch panel sensor, and a touch panel. The conductive film according to the present invention includes a substrate, a patterned layer to be plated which is arranged on at least one surface of the substrate and has a functional group interacting with a plating catalyst or a precursor thereof, a copper plating layer which is arranged to cover the patterned layer to be plated and is in contact with the substrate, a metal layer which is arranged to cover the copper plating layer and contains a metal that is electrochemically nobler than copper, a nitrogen-containing compound layer which is arranged to cover the metal layer that is electrochemically nobler than copper, and a protective layer which is arranged to cover the nitrogen-containing compound layer.

First claim

What is claimed is:

1. A conductive film comprising:
a substrate;
a patterned layer to be plated which is arranged on at least one surface of the substrate and has a functional group interacting with a plating catalyst or a precursor thereof;
a copper plating layer which is arranged to cover the patterned layer to be plated and is in contact with the substrate;
a metal layer which is arranged to cover the copper plating layer and contains a metal that is electrochemically nobler than copper;
a nitrogen-containing compound layer which is arranged to cover the metal layer containing the metal that is electrochemically nobler than copper; and
a protective layer which is arranged to cover the nitrogen-containing compound layer.

2. The conductive film according to claim 1 ,
wherein the nitrogen-containing compound layer contains a nitrogen-containing non-aromatic compound or a nitrogen-containing aromatic compound.

3. The conductive film according to claim 2 ,
wherein the nitrogen-containing compound layer contains the nitrogen-containing non-aromatic compound.

4. The conductive film according to claim 3 ,
wherein the nitrogen-containing non-aromatic compound is a nitrogen-containing aliphatic acyclic compound.

5. The conductive film according to claim 4 ,
wherein the nitrogen-containing aliphatic acyclic compound is a compound represented by Formula (1),

X represents a hydrophilic group selected from the group consisting of a hydroxyl group, a mercapto group, an amino group, and a phosphoric acid group, Y represents a hydrogen atom or a substituent other than the hydrophilic group, L's each independently represent a single bond or a divalent linking group, n represents an integer of 1 to 3, and m represents an integer of 0 to 2, where a relationship of n+m=3 is satisfied.

6. The conductive film according to claim 1 ,
wherein the protective layer contains at least one hetero atom selected from the group consisting of a silicon atom, a sulfur atom, and a phosphorus atom.

7. The conductive film according to claim 1 ,
wherein the protective layer contains a siloxane-based resin.

8. The conductive film according to claim 1 ,
wherein the patterned layer to be plated is arranged in a mesh shape.

9. The conductive film according to claim 1 ,
wherein the substrate has a three-dimensional shape.

10. A touch panel sensor comprising:
the conductive film according to claim 1 .

11. A touch panel comprising:
the touch panel sensor according to claim 10 .

12. The conductive film according to claim 2 ,
wherein the protective layer contains at least one hetero atom selected from the group consisting of a silicon atom, a sulfur atom, and a phosphorus atom.

13. The conductive film according to claim 2 ,
wherein the protective layer contains a siloxane-based resin.

14. The conductive film according to claim 2 ,
wherein the patterned layer to be plated is arranged in a mesh shape.

15. The conductive film according to claim 2 ,
wherein the substrate has a three-dimensional shape.

16. A touch panel sensor comprising:
the conductive film according to claim 2 .

17. A touch panel comprising:
the touch panel sensor according to claim 16 .

18. The conductive film according to claim 3 ,
wherein the protective layer contains at least one hetero atom selected from the group consisting of a silicon atom, a sulfur atom, and a phosphorus atom.

19. The conductive film according to claim 3 ,
wherein the protective layer contains a siloxane-based resin.

20. The conductive film according to claim 3 ,
wherein the patterned layer to be plated is arranged in a mesh shape.

Assignees

• Fujifilm Corp

Inventors

• Matsuoka Chika
• Ichiki Takahiko

Classifications

• G06F3/044 Primary

  by capacitive means · CPC title

• H05K2203/0392

  Pretreatment of metal, e.g. before finish plating, etching · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• H05K3/285 Primary

  Permanent coating compositions · CPC title

• G06F2203/04112

  Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title