IP Library Granted Patent US 7,781,048
Granted Patent B2
US 7,781,048 · App. 11/464,920 · Granted Aug 24, 2010

Transparent conductive multilayer body

Assignee: Nitto Denko Corporation
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Quick Facts
Patent No.
US 7,781,048
App. No.
11/464,920
Granted
Aug 24, 2010
Kind
B2
Abstract

A transparent conductive multilayer body of the present invention is characterized by having: a transparent film base; an SiO x film (x is no less than 1.5 and less than 2) which is provided on one surface of the above described film base in accordance with a dry process, and has a thickness of 1 nm to 30 nm and a relative index of refraction of 1.6 to 1.9; an SiO 2 film which is provided on the above described SiO x film and has a thickness of 10 nm to 50 nm; and a transparent conductive thin film which is provided on the above described SiO 2 film and has a thickness of 20 nm to 35 nm.

Claims (16)

1. A transparent conductive multilayer body, characterized by comprising:

a transparent film base;

an SiO x film (x is no less than 1.5 and less than 2) which is provided on one surface of said film base in accordance with a dry process, and has a thickness of 1 nm to 30 nm and a relative index of refraction of 1.6 to 1.9;

an SiO 2 film which is provided in direct contact with said SiO x film and has a thickness of 10 nm to 50 nm; and

a transparent conductive thin film which is provided in direct contact with said SiO 2 film and has a thickness of 20 nm to 35 nm.

2. The transparent conductive multilayer body according to claim 1 , characterized in that

a resin layer is provided on at least one surface of said film base.

3. The transparent conductive multilayer body according to claim 1 , characterized in that

a transparent substrate is bonded to the surface on the opposite side of said film base with a transparent pressure-sensitive adhesive layer in between.

4. The transparent conductive layer body according to claim 1 , characterized in that

said conductive thin film is made of crystalline indium tin oxide having a crystal grain diameter of no greater than 200 nm and a crystal content which exceeds 50%.

5. The transparent conductive multilayer body according to claim 1 , characterized in that

the hardness on the side on which said conductive thin film is layered is no less than 2 GPa.

6. The transparent conductive multilayer body according to claim 1 , characterized in that

the modulus of elasticity on the side on which said conductive thin film is layered is no less than 8 GPa.

7. A touch panel, characterized by having the transparent conductive multilayer body according to claim 1 and a lower substrate placed to face each other with a spacer in between.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 16, 2006
From: NASHIKI, TOMOTAKE; SUGAWARA, HIDEO; YOSHITAKE, HIDETOSHI
To: NITTO DENKO CORPORATION
Reel/Frame 018121/0353 →
Priority Claims (1)
JP 2005-305761 · Oct 20, 2005 · national
Continuity (1)
Related Publication 20070091074A1 · Apr 26, 2007