Transparent conductive film

Patent metadata

Field	Value
Publication number	US-10186346-B2
Application number	US-201515037288-A
Country	US
Kind code	B2
Filing date	Mar 11, 2015
Priority date	Apr 30, 2014
Publication date	Jan 22, 2019
Grant date	Jan 22, 2019

Abstract

A transparent conductive film 1 includes, in this order, a transparent substrate 2 , a first optical adjustment layer 4 , an inorganic layer 5 , and a transparent conductive layer 6 . The first optical adjustment layer 4 has refractive index nC lower than refractive index nA of the transparent substrate 2 , and thickness TC of 10 nm or more and 35 nm or less. The inorganic layer 5 has refractive index nD that is lower than the absolute value |nC×1.13| of a value obtained by multiplying the refractive index nC of the first optical adjustment layer 4 by 1.13.

First claim

What is claimed is:

1. A transparent conductive film comprising, in this order, a transparent substrate, a first optical adjustment layer, an inorganic layer, and a transparent conductive layer,
wherein the first optical adjustment layer has a refractive index lower than the refractive index of the transparent substrate and has a thickness of 10 nm or more and 35 nm or less,
a ratio of a thickness of the inorganic layer to a thickness of the first optical adjustment layer is 0.350 or less,
a ratio of a thickness of transparent conductive layer to the thickness of the inorganic layer is 5 or more, and
the inorganic layer has a refractive index, the refractive index being lower than or the same as the absolute value of a value obtained by multiplying the refractive index of the first optical adjustment layer by 1.13.

2. The transparent conductive film according to claim 1 , further comprising a second optical adjustment layer disposed between the transparent substrate and the first optical adjustment layer,
wherein the second optical adjustment layer has a refractive index higher than the refractive index of the transparent substrate.

3. The transparent conductive film according to claim 2 , wherein the second optical adjustment layer has a thickness of 100 nm or more and 300 nm or less.

4. The transparent conductive film according to claim 1 , wherein the inorganic layer has a thickness of 1.5 nm or more and 10 nm or less.

5. The transparent conductive film according to claim 1 , wherein the transparent conductive layer has a thickness of 25 nm or more.

6. The transparent conductive film according to claim 1 , wherein the first optical adjustment layer consists of resin.

Assignees

• Nitto Denko Corp

Inventors

• Kato Daiki
• Kawakami Rie
• Fujino Nozomi
• Nashiki Tomotake

Classifications

• C23C14/35

  by application of a magnetic field, e.g. magnetron sputtering {(C23C14/3457 takes precedence)} · CPC title

• H01B3/306

  Polyimides or polyesterimides · CPC title

• C23C14/08

  Oxides (C23C14/10 takes precedence) · CPC title

• H01B3/427

  Polyethers · CPC title

• H01B3/442

  from aromatic vinyl compounds · CPC title