Transfer film, method for manufacturing film sensor, film sensor, front panel and sensor assembly, and image display device

Patent metadata

Field	Value
Publication number	US-10174181-B2
Application number	US-201715598559-A
Country	US
Kind code	B2
Filing date	May 18, 2017
Priority date	Dec 3, 2014
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

A transfer film for forming a decorative layer on at least one surface of a film sensor has a coloring composition layer containing a black or white pigment, and the coloring composition layer satisfies inequality 1:

50> a×b >10  inequality 1

where a is the mass content ratio of the black or white pigment in the coloring composition layer, and b is the thickness of the coloring composition layer having a unit of μm.

First claim

What is claimed is:

1. A transfer film for forming a decorative layer on at least one surface of a film sensor, the transfer film comprising a coloring composition layer containing a black or white pigment, the coloring composition layer satisfying the relationship
50> a×b> 10  inequality 1

wherein a is the mass content ratio of the black or white pigment in the coloring composition layer, and b is the thickness of the coloring composition layer having a unit of μm.

2. The transfer film according to claim 1 , wherein the black or white pigment comprises carbon black or titanium oxide particles.

3. The transfer film according to claim 2 , wherein the carbon black is a resin-coated carbon black.

4. The transfer film according to claim 1 , wherein the coloring composition layer has a thickness of 0.5 to 10 μm.

5. The transfer film according to claim 1 , wherein the coloring composition layer contains an oxime polymerization initiator.

6. The transfer film according to claim 1 , wherein the coloring composition layer contains a thiol compound.

7. The transfer film according to claim 6 , wherein the thiol compound has two or more thiol groups.

8. The transfer film according to claim 1 , wherein the coloring composition layer contains a binder having a carboxyl group, and
the binder has an acid value of 50 mg KOH/g or more.

9. The transfer film according to claim 1 , wherein the coloring composition layer contains a polymerizable compound having at least five ethylenically unsaturated groups.

10. The transfer film according to claim 1 , wherein the coloring composition layer has a halogen-containing compound content of 1% by mass or less.

11. The transfer film according to claim 1 , further containing particles other than the black or white pigment.

12. A method for manufacturing a film sensor, comprising:
transferring the coloring composition layer from the transfer film according to claim 1 to at least one surface of a film sensor to form a decorative layer,

the film sensor comprising:
a transparent substrate sheet;
an electrode pattern disposed on each side of the substrate sheet;
wiring lines connected to the electrode pattern; and
an overcoat layer disposed over the electrode pattern.

13. The method for manufacturing a film sensor according to claim 12 , further comprising heating the film sensor at 130° C. to 170° C. after transferring the coloring composition layer.

14. The method for manufacturing a film sensor according to claim 12 , wherein the at least one surface of the film sensor to which the coloring composition layer is transferred includes at least a region of the wiring lines and at least a region of the overcoat layer.

15. A film sensor comprising:
a transparent substrate sheet;
an electrode pattern disposed on each side of the substrate sheet;
wiring lines connected to the electrode pattern; and
an overcoat layer disposed over the electrode pattern,
wherein a decorative layer is disposed on at least one surface of the film sensor, and
the film sensor is manufactured by the method for manufacturing a film sensor according to claim 12 .

16. A sensor integrated with front panel comprising:
a transparent front panel; and
the film sensor according to claim 15 .

17. The sensor integrated with front panel according to claim 16 , further comprising a second decorative layer in a region of one surface of the front panel,
wherein the second decorative layer is disposed between the front panel and the decorative layer of the film sensor, and
an orthogonal projection of the second decorative layer overlaps at least a region of the decorative layer of the film sensor as viewed in a direction normal to the front panel.

18. The sensor integrated with front panel according to claim 16 , wherein the front panel is formed of a glass.

19. An image display device comprising, the sensor integrated with front panel according to claim 18 .

Assignees

• Fujifilm Corp

Inventors

• Morozumi Kazumasa
• Osada Shuichiro
• Takeuchi Ko

Classifications

• G03F7/038

  Macromolecular compounds which are rendered insoluble or differentially wettable (G03F7/075 takes precedence; macromolecular azides G03F7/012; macromolecular diazonium compounds G03F7/021) · CPC title

• B41M5/00

  Duplicating or marking methods; Sheet materials for use therein (by using light-sensitive materials G03; electrography, magnetography G03G {; repeatedly usable boards or tablets for writing or drawing B43L1/00}) · CPC title

• C08K9/04

  Ingredients treated with organic substances {(treated with macromolecular compounds C08K9/08)} · CPC title

• G06F3/0416

  Control or interface arrangements specially adapted for digitisers · CPC title

• G03F7/031

  Organic compounds not covered by group G03F7/029 · CPC title