Transparent conductive film, substrate with transparent conductive film, and organic electroluminescence element using the same

• US 9,017,807 B2
• Filed: 02/07/2012
• Issued: 04/28/2015
• Est. Priority Date: 03/10/2011
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: Tsujimoto, Akira, Matsui, Taisuke, Yokogawa, Hiroshi
• Primary Examiner(s): Vo, Hai
• Application Number:
  US13/812,013
• Publication Number:
  US 20130122279A1
• Time in Patent Office: 1,176 Days
• Field of Search: 428/411.1, 428/315.7
• US Class Current: 428/317.9
• CPC Class Codes: B32B 2262/103 Metal fibres
• CPC Class Codes: B32B 2262/106 Carbon fibres, e.g. graphite fibres
• CPC Class Codes: B32B 2307/202 Conductive
• CPC Class Codes: B32B 2307/412 Transparent
• CPC Class Codes: B32B 2457/20 Displays, e.g. liquid crystal displays, plasma displays
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/20 using fillers, pigments, thixotroping agents
• CPC Class Codes: B32B 3/26 characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids foam layer B32B5/18; layer of synthetic resin characterised by fillers that create voids or cavities B32B27/205; characterised by an apertured layer
• CPC Class Codes: H01B 1/124 Intrinsically conductive polymers
• CPC Class Codes: H01B 1/20 Conductive material dispersed in non-conductive organic material organic macromolecular compounds or compositions C08
• CPC Class Codes: H01B 1/22 the conductive material comprising metals or alloys
• CPC Class Codes: H10K 50/816 Multilayers, e.g. transparent multilayers
• CPC Class Codes: H10K 71/80 using temporary substrates
• CPC Class Codes: Y10T 428/249979 Specified thickness of void-containing component [absolute or relative] or numerical cell dimension
• CPC Class Codes: Y10T 428/249986 Void-containing component contains also a solid fiber or solid particle
• CPC Class Codes: Y10T 428/249991 Synthetic resin or natural rubbers
• CPC Class Codes: Y10T 428/249993 Hydrocarbon polymer
• CPC Class Codes: Y10T 428/265 1 mil or less
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane
• CPC Class Codes: Y10T 428/31678 Of metal

Abstract

A transparent conductive film includes a first transparent resin layer including a plurality of thin metallic wires, a second transparent resin layer containing a conductive polymer, and a third transparent resin layer provided between the first transparent resin layer and the second transparent resin layer. The second transparent resin layer contains a resin which is soluble in water, and the third transparent resin layer contains a resin which is insoluble in water or has water resistance. The third transparent resin layer can suppress mixing of the second transparent resin layer with the first transparent resin layer and can make the second transparent resin layer less likely to be damaged by the first transparent resin layer. Therefore, a surface of the second transparent resin layer is made smooth and electrical conductivity is made uniform.

Claims

1. A transparent conductive film comprising:

a first transparent resin layer comprising metallic nanowires or carbon nanotubes;

a second transparent resin layer comprising a conductive polymer; and

a third transparent resin layer provided between the first transparent resin layer and the second transparent resin layer, wherein

at least one of the first transparent resin layer and the second transparent resin layer comprises a resin which is soluble in water, and

the third transparent resin layer comprises a resin which is insoluble in water or has water resistance and is formed as a porous layer with pores having a diameter not less than 0.5 nm and not greater than 1 μ

m.

2. The transparent conductive film according to claim 1, wherein a thickness of the third transparent resin layer is not less than 5 nm and not greater than 1 μ

m.

3. The transparent conductive film according to claim 1, wherein a contact angle with respect to water on a surface of the third transparent resin layer is not greater than 75°

.

4. The transparent conductive film according to claim 1, wherein the third transparent resin layer comprises a binder composed of a silicone resin.

5. A transparent conductive film-attached substrate in which the transparent conductive film according to claim 1 is formed on a substrate.

6. An organic electroluminescence element comprising the transparent conductive film-attached substrate according to claim 5.

7. The transparent conductive film according to claim 1, wherein part of the metallic nanowires or part of the carbon nanotubes protrude from a surface of the first transparent resin layer, extend through the third transparent layer, and protrude from a surface of the third transparent layer opposite to a surface of that layer facing the first transparent resin layer.