CONDUCTOR PATTERN STRUCTURE OF CAPACITIVE TOUCH PANEL

• US 20080264699A1
• Filed: 08/21/2007
• Published: 10/30/2008
• Est. Priority Date: 04/27/2007
• Status: Active Grant

• Current Assignee: TPK Touch Solutions (Xiamen) Inc. (TPK Holding Co., Ltd.)
• Original Assignee: Trendon Touch Technology Corporation
• Inventors: Chien, Shun-Ta, Chang, Ching-Yang
• Granted Patent: US 8,217,902 B2
• Time in Patent Office: Days
• US Class Current: 178/18.01
• CPC Class Codes: G06F 1/169 the I/O peripheral being an integrated pointing device, e.g. trackball in the palm rest area, mini-joystick integrated between keyboard keys, touch pads or touch stripes G06F1/1643 takes precedence; constructional details of pointing devices G06F3/033
• CPC Class Codes: G06F 1/1692 the I/O peripheral being a secondary touch screen used as control interface, e.g. virtual buttons or sliders
• 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 3/0443 using a single layer of sensing electrodes
• 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: Y10T 29/49004 including measuring or testing of device or component part

Abstract

Disclosed is a conductor pattern structure of a capacitive touch panel. First-axis conductor assemblies and second-axis conductor assemblies are formed on a surface of a substrate. Each first-axis conductor assembly includes a plurality of first-axis conductor cells that are interconnected by first-axis conduction lines. An insulation layer is formed on a surface of each first-axis conduction line. Each second-axis conductor assembly includes a plurality of second-axis conductor cells that are interconnected by second-axis conduction lines. Each second-axis conduction line extends across the insulation layer of the associated first-axis conduction line.

Claims

1. A conductor pattern structure of a capacitive touch panel, which is adapted to form on a surface of a substrate, the touch-control pattern structure comprising:

a plurality of first-axis conductor assemblies, each first-axis conductor assembly comprising a plurality of first-axis conductor cells arranged on the substrate surface along a first axis in a substantially equally-spaced manner, a disposition zone being delimited between adjacent ones of the first-axis conductor assemblies and between adjacent ones of the first-axis conductor cells;

a plurality of first-axis conduction lines respectively connecting between adjacent ones of the first-axis conductor cells of each first-axis conductor assembly so that the first-axis conductor cells of each respective first-axis conductor assembly are electrically connected together;

a plurality of insulation layers each covering a surface of each first-axis conduction line;

a plurality of second-axis conductor assemblies, each second-axis conductor assembly comprising a plurality of second-axis conductor cells arranged on the substrate surface along a second axis in a substantially equally-spaced manner, each second-axis conductor cell being set in each disposition zone; and

a plurality of second-axis conduction lines respectively connecting between adjacent ones of the second-axis conductor cells of each second-axis conductor assembly so that the second-axis conductor cells of each respective second-axis conductor assembly are electrically connected together, the second-axis conduction line being extended across a surface of the insulation layer of the respective first-axis conduction line.

2. The conductor pattern structure as claimed in claim 1, wherein the first-axis conductor cells and the second-axis conductor cells consist of a transparent conductive material.

3. The conductor pattern structure as claimed in claim 1, wherein the first-axis conduction lines and the second-axis conduction lines consist of a transparent conductive material.

4. The conductor pattern structure as claimed in claim 1, wherein the insulation layer consists of a transparent insulation material.

5. The conductor pattern structure as claimed in claim 1, wherein the first-axis conductor cells and the second-axis conductor cells have a contour of hexagonal shape.

6. A conductor pattern structure of a capacitive touch panel adapted to form on a surface of a substrate, the touch-control pattern structure comprising:

at least two adjacent first-axis conductor cells; and

at least two adjacent second-axis conductor cells,

wherein the adjacent first-axis conductor cells are connected by a first-axis conduction line provided therebetween, characterized in that an insulation layer is formed on a surface of the first-axis conduction line and a second-axis conduction line extends across a surface of the insulation layer to connect between the adjacent second-axis conductor cells.

7. The conductor pattern structure as claimed in claim 6, wherein the first-axis conductor cells and the second-axis conductor cells consist of a transparent conductive material.

8. The conductor pattern structure as claimed in claim 6, wherein the first-axis conduction line and the second-axis conduction line consist of a transparent conductive material.

9. The conductor pattern structure as claimed in claim 6, wherein the insulation layer consists of a transparent insulation material.

10. The conductor pattern structure as claimed in claim 6, wherein the first-axis conductor cells and the second-axis conductor cells have a contour of hexagonal shape.