Method of manufacturing a transparent conductive film

Patent metadata

Field	Value
Publication number	US-10100208-B2
Application number	US-201514593239-A
Country	US
Kind code	B2
Filing date	Jan 9, 2015
Priority date	Feb 23, 2011
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

A transparent conductive film including metal nanowires and a colored compound adsorbed by the metal nanowires is provided. The metal nanowires are a material which absorbs light in the visible light region, and also each has a functional group which is bound to a metal constituting the metal nanowire.

First claim

The invention claimed is:

1. A method of manufacturing a transparent conductive film, the method comprising:
forming a dispersion liquid having metal nanowires and a colored compound adsorbed to the metal nanowires, the metal nanowires being dispersed in a solvent;
forming a dispersion film using the dispersion liquid and an uncured transparent resin material;
drying the dispersion film to remove the solvent from the dispersion film; and
curing the uncured transparent resin material to form the transparent conductive film,
wherein the forming of the dispersion liquid includes binding the colored compound to the metal nanowires such that the colored compound is adsorbed to the metal nanowires, and
wherein the forming of the dispersion liquid includes providing the colored compound in an amount of at least 0.0001 percent by weight and no greater than 0.1 percent by weight of the dispersion liquid.

2. The method according to claim 1 , further comprising
pressurizing the transparent conductive film.

3. The method according to claim 1 , wherein
the forming of the dispersion liquid includes providing the metal nanowires at least 0.01 parts by weight and no greater than 10 parts by weight when the dispersion liquid is 100 parts by weight.

4. The method according to claim 1 , wherein
the forming of the dispersion film includes applying the dispersion liquid to a transparent substrate.

5. The method according to claim 1 , wherein
the curing of the uncured transparent resin material forms an adsorption wire layer containing the metal nanowires with the colored compound adsorbed thereto.

6. The method according to claim 1 , wherein the coating weight of the metal nanowires is 0.001 to 1 [g/m 2 ].

7. The method according to claim 1 , wherein the metal nanowire comprises one or more elements selected from Ag, Au, Ni, Cu, Pd, Pt, Rh, Ir, Ru, Os, Fe, Co, and Sn as a constituent element.

8. A method of manufacturing a transparent conductive film, the method comprising:
forming a dispersion liquid by dispersing metal nanowires together with an uncured transparent resin material in a solvent;
forming a dispersion film using the dispersion liquid;
drying the dispersion film to remove the solvent from the dispersion film; and
curing the uncured transparent resin material in the dried dispersion film to form the transparent conductive film; and
contacting the transparent conductive film with a treatment solution in which a colored compound is dissolved such that the metal nanowires in the transparent conductive film adsorb the colored compound,
wherein the contacting includes binding the colored compound to the metal nanowires such that the colored compound is adsorbed to the metal nanowires, and
wherein the contacting includes providing the colored compound in an amount of at least 0.0001 percent by weight and no greater than 0.1 percent by weight of the treatment solution.

9. The method according to claim 8 , wherein the coating weight of the metal nanowires is 0.001 to 1 [g/m 2 ].

10. The method according to claim 8 , wherein the metal nanowire comprises one or more elements selected from Ag, Au, Ni, Cu, Pd, Pt, Rh, Ir, Ru, Os, Fe, Co, and Sn as a constituent element.

11. A method of manufacturing a transparent conductive film, the method comprising:
forming a dispersion liquid having metal nanowires and a colored compound adsorbed to the metal nanowires, the metal nanowires being dispersed in a solvent;
forming a dispersion film using the dispersion liquid and an uncured transparent resin material;
drying the dispersion film to remove the solvent from the dispersion film; and
curing the uncured transparent resin material to form the transparent conductive film,
wherein the forming of the dispersion liquid includes providing the colored compound in an amount of at least 0.0001 percent by weight and no greater than 0.1 percent by weight of the dispersion liquid, and binding the colored compound to the metal nanowires such that the colored compound is bound to the metal nanowires by covalent bonding or coordination bonding.

12. The method according to claim 11 , wherein the coating weight of the metal nanowires is 0.001 to 1 [g/m 2 ].

13. The method according to claim 11 , wherein the metal nanowire comprises one or more elements selected from Ag, Au, Ni, Cu, Pd, Pt, Rh, Ir, Ru, Os, Fe, Co, and Sn as a constituent element.

Assignees

• Dexerials Corp

Inventors

• Iwata Ryosuke
• Mizuno Mikihisa

Classifications

• H05K7/00

  Constructional details common to different types of electric apparatus (casings, cabinets, drawers H05K5/00) · CPC title

• H01L27/322

  Electricity · mapped topic

• G06F2203/04103

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

• H01B13/322

  the material being a liquid, jelly-like or viscous substance · CPC title

• C09D5/24 Primary

  Electrically-conducting paints {(conductive materials H01B1/00)} · CPC title