Conductive sheet, manufacturing method of conductive sheet, and touch panel
AssigneeFUJIFILM Corporation
InventorsShin Tajiri, Kensuke Katagiri, Toshinari Fujii
Life of this patent
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Abstract
The conductive sheet includes a support and a conductive portion which is disposed on the support and composed of thin conductive wires containing metal silver and gelatin, in which gelatin is substantially not contained between the thin conductive wires on the support, and a volume ratio (A/B) of a volume A of the metal silver to a volume B of the gelatin in the thin conductive wires is 0.3 to 10.0. In the conductive sheet, the occurrence of ion migration between thin conductive wires is further inhibited. A manufacturing method of the conductive sheet and a touch panel including the conductive sheet are also provided.
Claims19
A conductive sheet comprising:
- a support;
- and
- a conductive portion which is disposed on the support and composed of thin conductive wires containing metal silver and gelatin,
- wherein gelatin is substantially not contained between the thin conductive wires on the support, and
- a volume ratio (A/B) of a volume A of the metal silver to a volume B of the gelatin in the thin conductive wires is 0.3 to 10.0.
A manufacturing method of a conductive sheet comprising:
- a support;
- and a conductive portion which is disposed on the support and composed of thin conductive wires containing metal silver and gelatin,
- wherein gelatin is substantially not contained between the thin conductive wires on the support, and
- a volume ratio (A/B) of a volume A of the metal silver to a volume B of the gelatin in the thin conductive wires is 0.3 to 10.0;
- the method comprising:
- a step A of forming a silver halide-containing photosensitive layer, which contains silver halide, gelatin, and a polymer different from gelatin and in which a mass ratio (Y/X) of a mass Y of the polymer to a mass X of the gelatin is equal to or greater than 0.1, on a support;
- a step B of forming a conductive portion composed of thin conductive wires, which contain metal silver and gelatin, by performing exposure and then development treatment on the silver halide-containing photosensitive layer;
- a step C of performing heating treatment on the support having the conductive portion obtained by the step B;
- and
- a step D of treating the support having the conductive portion with a protease which decomposes the gelatin.
A manufacturing method of a conductive sheet comprising:
- a support;
- and a conductive portion which is disposed on the support and composed of thin conductive wires containing metal silver and gelatin,
- wherein gelatin is substantially not contained between the thin conductive wires on the support, and
- a volume ratio (A/B) of a volume A of the metal silver to a volume B of the gelatin in the thin conductive wires is 0.3 to 10.0,
- wherein the conductive sheet has a binder portion, which contains a polymer different from gelatin and substantially does not contain gelatin, between the thin conductive wires on the support;
- the method comprising:
- a step A of forming a silver halide-containing photosensitive layer, which contains silver halide, gelatin, and a polymer different from gelatin and in which a mass ratio (Y/X) of a mass Y of the polymer to a mass X of the gelatin is equal to or greater than 0.1, on a support;
- a step B of forming a conductive portion composed of thin conductive wires, which contain metal silver and gelatin, by performing exposure and then development treatment on the silver halide-containing photosensitive layer;
- a step C of performing heating treatment on the support having the conductive portion obtained by the step B;
- and
- a step D of treating the support having the conductive portion with a protease which decomposes the gelatin.
Dependencies are inferred from the claim text.