ELECTRODE PATTERN OF TOUCH PANEL AND FORMING METHOD FOR THE SAME

• US 20130155011A1
• Filed: 12/11/2012
• Published: 06/20/2013
• Est. Priority Date: 12/16/2011
• Status: Active Grant

• Current Assignee: LG Innotek Company Limited (LG Corporation)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: KIM, Byung Soo, HONG, Hyuk Jin, KOO, Chan Kyu
• Granted Patent: US 9,703,424 B2
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: B82Y 15/00 Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• 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 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

The present invention relates to an electrode pattern of a touch panel and a forming method of the electrode pattern of a touch panel. The electrode pattern of a touch panel according to the present invention includes a plurality of electrode pattern cells which are arranged on a substrate in a space, a dielectric layer formed on the electrode pattern cell, and a bridge electrode which is formed on the dielectric layer by using conductive material of black color and connects the electrode pattern cells.

Claims

1. A forming method of an electrode pattern of a touch panel, comprising:

forming a plurality of electrode pattern cells formed to each other in a space on a substrate;

forming a dielectric layer on the electrode pattern cell; and

forming a bridge electrode which is formed on the dielectric layer by using conductive material of black color and connects the electrode pattern cells.

2. The forming method of an electrode pattern of a touch panel of claim 1, wherein the bridge conductive is formed with a metal oxide, nitride or fluoride as a blackened metal material.

3. The forming method of an electrode pattern of a touch panel of claim 1, wherein the bridge conductive is blackened, corresponding to the luminosity of the substrate, the electrode pattern cell or the dielectric layer.

4. The forming method of an electrode pattern of a touch panel of claim 2, wherein the metal material is one of Al, Au, Ag, Sn, Cr, Ni, Ti and Mg.

5. The forming method of an electrode pattern of a touch panel of claim 1, wherein the bridge conductive is formed with Carbon Nano Tube.

6. The forming method of an electrode pattern of a touch panel of claim 1, wherein the bridge conductive is formed as a plurality of layers formed by using a plurality of conductive materials.

7. The forming method of an electrode pattern of a touch panel of claim 6, wherein among the plurality of layers of the bridge conductive, the lower layer is formed with conductive material of a black color and the upper layer is formed by vapor-depositing or applying metal.

8. The forming method of an electrode pattern of a touch panel of claim 6, wherein among the plurality of layers of the bridge conductive, the lower layer is formed with a conductive material of a first black color and the upper layer is formed with a conductive material of a second black color.

9. The forming method of an electrode pattern of a touch panel of claim 1, wherein the plurality of the electrode pattern cells are configured by forming the first electrode pattern cells on the substrate, which are arranged in a first axial direction wherein the first electrode pattern cells are connected to each other through a conductive lead in the first axial direction, and forming a plurality of second electrode pattern cells arranged in a second axial direction perpendicular to the first axial direction.

10. The forming method of an electrode pattern of a touch panel of claim 9, wherein the dielectric layer is arranged over the conductive lead connection the first electrode pattern cells through an off-set or ink jet process, and the second electrode pattern cell.

11. An electrode pattern of a touch panel, comprising:

a plurality of electrode pattern cells formed to each other in a space on a substrate;

a dielectric layer on the electrode pattern cell; and

a bridge electrode which is formed on the dielectric layer by using conductive material of black color and connects the electrode pattern cells.

12. The electrode pattern of a touch panel of claim 11, wherein the bridge electrode is formed with a metal oxide, nitride or fluoride as a blackened metal material.

13. The electrode pattern of a touch panel of claim 11, wherein the bridge electrode is blackened, corresponding to the luminosity of the substrate, the electrode pattern cell or the dielectric layer.

14. The electrode pattern of a touch panel of claim 12, wherein the metal material is one of Al, Au, Ag, Sn, Cr, Ni, Ti and Mg.

15. The electrode pattern of a touch panel of claim 11, wherein the bridge electrode is formed with Carbon Nano Tube.

16. The electrode pattern of a touch panel of claim 11, wherein the bridge electrode is formed as a plurality of layers by using a plurality of conductive materials.

17. The electrode pattern of a touch panel of claim 16, wherein among the plurality of layers of the bridge conductive, the lower layer is formed with conductive material of a black color and the upper layer is formed by vapor-depositing or applying metal.

18. The electrode pattern of a touch panel of claim 16, wherein among the plurality of layers of the bridge conductive, the lower layer is formed with a conductive material of a first black color and the upper layer is formed with a conductive material of a second black color.

19. The electrode pattern of a touch panel of claim 11, wherein the plurality of the electrode pattern cells comprise a plurality of electrode pattern cells on the substrate, which are arranged in a first axial direction wherein the first electrode pattern cells are connected to each other through a conductive lead in the first axial direction, and a plurality of second electrode pattern cells arranged in a second axial direction perpendicular to the first axial direction.

20. The electrode pattern of a touch panel of claim 19, wherein the dielectric layer is arranged over the conductive lead connection the first electrode pattern cells through an off-set or ink-jet process, and the second electrode pattern cell.