TOUCH PANEL AND MANUFACTURING METHOD THEREOF

• US 20120206394A1
• Filed: 10/15/2010
• Published: 08/16/2012
• Est. Priority Date: 10/16/2009
• Status: Active Grant

• 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
• Granted Patent: US 9,832,861 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G06F 3/047 using sets of wires, e.g. crossed wires
• CPC Class Codes: H05K 1/0274 Optical details, e.g. printed circuits comprising integral optical means H05K1/0269 takes precedence; coupling light guides with opto-electronic components G02B6/42
• CPC Class Codes: H05K 1/0296 Conductive pattern lay-out details not covered by sub groups H05K1/02 - H05K1/0295 H05K1/11 takes precedence; lay-out adapted to mounted component configuration H05K1/18
• CPC Class Codes: H05K 1/09 Use of materials for the conductive, e.g. metallic pattern
• CPC Class Codes: Y10T 29/49155 Manufacturing circuit on or in base

Abstract

A touch panel is provided. The touch panel includes a substrate, a jumper metal, a first insulation layer, first and second conductive patterns, first and second metal electrodes, and a second insulation layer. The jumper metal is formed on the substrate. The first insulation layer includes an opening and is formed on the jumper metal. The first and second conductive patterns are formed on the first insulation layer. The first and second metal electrodes are respectively connected to end portions of the first and second conductive patterns. The second insulation layer is formed on the first and second conductive patterns and the first and second metal electrodes. One of the first and second conductive patterns is connected by the jumper metal exposed through the opening of the first insulation layer.

Claims

1. A touch panel comprising:

a substrate;

a jumper metal on the substrate;

a first insulation layer comprising an opening, on the jumper metal;

first and second conductive patterns on the first insulation layer;

first and second metal electrodes respectively connected to end portions of the first and second conductive patterns; and

a second insulation layer on the first and second conductive patterns and the first and second metal electrodes,

wherein one of the first and second conductive patterns is connected by the jumper metal exposed through the opening of the first insulation layer.

2. The touch panel according to claim 1, wherein the jumper metal comprises the same material as a material of at least one of the first and second metal electrodes.

3. The touch panel according to claim 1, wherein the jumper metal is a conductive transparent metal.

4. The touch panel according to claim 1, wherein the first and second conductive patterns and the first and second metal electrodes comprise the same material.

5. The touch panel according to claim 1, wherein:

the first conductive pattern and the first metal electrode comprise the same material, and

the second conductive pattern and the second metal electrode comprise the same material.

6. The touch panel according to claim 1, wherein patterns in the other of the first and second conductive patterns are connected to each other on the first insulation layer.

7. The touch panel according to claim 1, wherein the first and second metal electrodes are disposed on the first insulation layer.

8. The touch panel according to claim 1, wherein the jumper metal is formed to connect two patterns adjacent to each other in one of the first and second conductive patterns.

9. The touch panel according to claim 1, wherein the opening of the first insulation layer is formed to expose both ends of the jumper metal.

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

11. A method of manufacturing touch panel, the method comprising:

forming a jumper metal on the substrate;

forming a first insulation layer comprising an opening, on the jumper metal;

forming first and second conductive patterns and first and second metal electrodes respectively connected to end portions of the first and second conductive patterns on the first insulation layer, wherein one of the first and second conductive patterns is connected by the jumper metal exposed through the opening; and

forming a second insulation layer on the first and second conductive patterns and the first and second metal electrodes.

12. The method according to claim 11, wherein the jumper metal comprises the same material as a material of at least one of the first and second metal electrodes.

13. The method according to claim 11, wherein the jumper metal is a conductive transparent metal.

14. The method according to claim 11, wherein the first and second conductive patterns and the first and second metal electrodes comprise the same material.

15. The method according to claim 11, wherein:

the first conductive pattern and the first metal electrode comprise the same material, and

the second conductive pattern and the second metal electrode comprise the same material.

16. The method according to claim 11, wherein the jumper metal is formed to connect two patterns adjacent to each other in one of the first and second conductive patterns.

17. The method according to claim 11, wherein the opening of the first insulation layer is formed to expose both ends of the jumper metal.