Capactive touch panel

• US 9,400,577 B2
• Filed: 10/15/2010
• Issued: 07/26/2016
• Est. Priority Date: 10/15/2009
• Status: Expired due to Fees

• Current Assignee: LG Innotek Company Limited (LG Corporation)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Kim, Byung Soo, Lee, Keun Sik, Seo, Chung Won, Jo, Ji Won, Hong, Hyuk Jin, Lee, Yong In
• Primary Examiner(s): GIRARDI, VANESSA MARY
• Application Number:
  US13/501,951
• Publication Number:
  US 20120199464A1
• Time in Patent Office: 2,111 Days
• Field of Search: 200/600, 345/173
• US Class Current: 1/1
• 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
• CPC Class Codes: G06F 3/047 using sets of wires, e.g. crossed wires
• CPC Class Codes: Y10T 29/49105 Switch making

Abstract

A touch panel is provided. The touch panel includes a first conductive pattern, a first insulation layer, a second conductive pattern, a first metal electrode, a second metal electrode, and a second insulation layer. The first conductive pattern is formed on a transparent substrate. The first insulation layer is formed on the first conductive pattern. The second conductive pattern is formed on the first insulation layer. The first metal electrode is connected to one end of the first conductive pattern. The second metal electrode is connected to one end of the second conductive pattern. The second insulation layer is formed on the second conductive pattern, the first metal electrode or the second metal electrode.

Claims

1. A touch panel, comprising:

a first conductive pattern directly on and in direct physical contact with a transparent substrate;

a first insulation layer on the first conductive pattern;

a second conductive pattern on the first insulation layer;

a plurality of first metal electrodes directly on and in direct physical contact with the transparent substrate and connected to the first conductive pattern; and

a second metal electrode on the transparent substrate and connected to the second conductive pattern;

wherein the second conductive pattern is disposed in a spaced portion of the first conductive pattern,

wherein the first metal electrodes and the second metal electrode are formed on a same plane of the transparent substrate,

wherein the first insulation layer covers a portion of the transparent substrate where the first conductive pattern is disposed,

wherein an entire surface of the second conductive pattern is in direct physical contact with the first insulation layer;

wherein the first conductive pattern, the second conductive pattern, the first metal electrodes, and the second metal electrode all comprise the same material;

wherein a first connection area of the first conductive pattern and the first metal electrodes is disposed outside the first insulation layer, and

wherein a second connection area of the second conductive pattern and the second metal electrode is disposed inside the first insulation layer.

2. The touch panel according to claim 1, wherein one of the first and second metal electrodes is formed outside the first insulation layer.

3. The touch panel according to claim 1, wherein the first and second conductive patterns are extended in a mutually intersecting direction.

4. The touch panel according to claim 1, wherein the first metal electrodes and the second metal electrode are formed outside the first insulation layer on a same plane.

5. The touch panel according to claim 1, wherein the second conductive pattern is disposed directly on the first insulation layer.

6. The touch panel according to claim 1, wherein the first insulation layer is disposed on the first conductive pattern and the transparent substrate, and

wherein the first metal electrodes and the second metal electrode are disposed on the transparent substrate outside an outer edge of the first insulation layer.

7. The touch panel according to claim 1, comprising a plurality of second metal electrodes connected to the second conductive pattern, wherein all first metal electrodes and all second metal electrodes are formed on a same plane.

8. The touch panel according to claim 1, further comprising a second insulation layer on the second conductive pattern.

9. The touch panel according to claim 8, wherein the first insulation layer is a transparent organic or inorganic insulation layer, and wherein the second insulation layer is a transparent organic or inorganic insulation layer.