TOUCH PANEL

• US 20130081856A1
• Filed: 04/10/2012
• Published: 04/04/2013
• Est. Priority Date: 09/29/2011
• Status: Abandoned Application

• Current Assignee: Tse-Kun Chang
• Original Assignee: Tse-Kun Chang
• Inventors: Chang, Tse-Kun
• Application Number:
  US13/443,656
• Publication Number:
  US 20130081856A1
• Time in Patent Office: Days
• US Class Current: 174/250
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer

Abstract

A touch panel is disclosed, which includes a transparent substrate, a decorative layer, a first conductive layer, a second conductive layer and an isolation layer. The decorative layer is formed on a portion of a surface of the transparent substrate, and the other portion of the surface of the transparent substrate and the decorative layer is coated with the first conductive layer. The isolation layer is disposed between the first and second conductive layers.

Claims

1. A touch panel comprising:

a transparent substrate;

a first conductive layer;

a decorative layer formed on a portion of a surface of the transparent substrate, wherein the other portion of the surface of the transparent substrate and the decorative layer are coated with the first conductive layer;

a second conductive layer; and

an isolation layer disposed between the first and second conductive layers.

2. The touch panel of claim 1, wherein the isolation layer comprises:

a resin layer, wherein a surface of the first conductive layer is coated with the resin layer; and

a guard resin layer formed on the surface of the first conductive layer and positioned along the circumference of the resin layer.

3. The touch panel of claim 2, wherein the resin layer and the guard resin layer are coated with the second conductive layer.

4. The touch panel of claim 1, further comprising:

a first conductive ink pattern printed on a portion of a surface of the first conductive layer and positioned between the first conductive layer and the isolation layer.

5. The touch panel of claim 4, further comprising:

a second conductive ink pattern printed on a portion of a surface of the second conductive layer and positioned between the second conductive layer and the isolation layer.

6. The touch panel of claim 1, wherein the transparent substrate is a single glass substrate.

7. The touch panel of claim 1, wherein the first conductive layer is a first transparent conductive layer.

8. The touch panel of claim 7, wherein the first transparent conductive layer is a first indium tin oxide layer.

9. The touch panel of claim 8, wherein the second conductive layer is a second transparent conductive layer.

10. The touch panel of claim 9, wherein the second transparent conductive layer is a second indium tin oxide layer.