Electrode pattern structure of a capacitive touch panel and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-9459735-B2
Application number	US-87623810-A
Country	US
Kind code	B2
Filing date	Sep 7, 2010
Priority date	Mar 10, 2010
Publication date	Oct 4, 2016
Grant date	Oct 4, 2016

Abstract

An electrode pattern structure of a capacitive touch panel is provided. The electrode pattern structure of a capacitive touch panel of the present invention, in one embodiment, comprises a substrate, at least one first electrode disposed on said substrate, an insulator disposed on said at least one first electrode, at least one second electrode disposed on said insulator and overlapped with said at least one first electrode at least one intersection, and at least one protective block located on said at least one second electrode and positioned at said at least one intersection.

First claim

What is claimed is:

1. An electrode pattern structure of a touch panel, comprising:
a substrate;
a plurality of first electrodes, at least one first electrode of said plurality of first electrodes disposed on said substrate;
an insulator comprising at least one insulator piece and disposed on said at least one first electrode;
a plurality of second electrodes, at least one second electrode of said plurality of second electrodes disposed on said at least one insulator piece and crossing over said at least one insulator piece and said at least one first electrode at at least one intersection of said at least one first electrode and said at least one second electrode, wherein said at least one insulator piece is positioned only at said at least one intersection; and
a plurality of protective blocks, at least one protective block of said plurality of protective blocks located on said at least one second electrode and positioned only at said at least one intersection, wherein each of said protective blocks are positioned only at each of said intersections of said first electrodes and said second electrodes, and wherein said at least one protective block is transparent,
wherein said at least one protective block stacks on said at least one insulator piece and only covers a part of said at least one second electrode overlapped with said at least one insulator piece, said at least one protective block in contact only with said at least one second electrode and said at least one insulator piece, and said at least one protective block covering a lateral surface of said at least one second electrode and a lateral surface of said at least one insulator piece.

2. The electrode pattern structure of claim 1 , wherein said at least one first electrode comprises at least two separate first conductor cells and at least one first conductive line connecting said at least two separate first conductor cells, and said at least one second electrode comprises at least two separate second conductor cells and at least one second conductive line connecting said at least two separate second conductor cells, and wherein said at least one second conductive line-overlaps with said at least one first conductive line at said at least one intersection.

3. The electrode pattern structure of claim 1 , wherein said substrate, said at least one first electrode, said at least one second electrode and said insulator are transparent.

4. The electrode pattern structure of claim 1 , wherein at least one of the following is transparent: said substrate, said at least one first electrode, said at least one second electrode or said insulator.

5. A method of manufacturing an electrode pattern structure comprising:
laying at least one first electrode on a substrate;
placing at least one insulator piece on said at least one first electrode;
laying at least one second electrode disposed on said at least one insulator piece and crossing over said at least one insulator piece and said at least one first electrode at at least one intersection of said at least one first electrode and said at least one second electrode to insulate said at least one second electrode from said at least one first electrode, wherein said at least one insulator piece is positioned only at said at least one intersection; and
placing at least one protective block on said at least one second electrode and positioned only at said at least one intersection, wherein said at least one protective block is transparent, wherein said at least one protective block stacks on said at least one insulator piece and covers only a part of said at least one second electrode overlapped with said at least one insulator piece, and wherein said at least one protective block is in contact only with said at least one second electrode and said at least one insulator piece, and said at least one protective block covering a lateral surface of said at least one second electrode and a lateral surface of said at least one insulator piece.

6. The method of manufacturing an electrode pattern structure of claim 5 , wherein laying said at least one first electrode comprises:
laying at least two first conductor cells, at least one first conductive line and at least two second conductor cells on said substrate, wherein said at least one first conductive line connects said at least two first conductor cells;
wherein laying said at least one second electrode comprises:
laying at least one second conductive line on said at least one insulator piece, wherein said at least one second conductive line connects said at least two second conductor cells; and
wherein said at least one protective block covers a lateral surface of said at least one second conductive line.

7. The method of manufacturing an electrode pattern structure of claim 5 , wherein laying said at least one first electrode comprises:
laying at least one first conductive line on said substrate;
wherein laying said at least one second electrode comprises:
laying at least two first conductor cells, at least two second conductor cells and at least one second conductive line, wherein said at least one first conductive line connects said at least two first conductor cells, and said at least one second conductive line is located on said at least one insulator piece and connects said at least two second conductor cells; and
wherein said at least one protective block covers a lateral surface of said at least one second conductive line.

8. The method of manufacturing an electrode pattern structure of claim 5 , wherein said electrode pattern structure is manufactured by photolithography.

9. The method of manufacturing an electrode pattern structure of claim 5 , wherein said electrode pattern structure is manufactured by printing.

10. A touch device having said electrode pattern structure of claim 1 comprising:
a plurality of lines;
a processor; and
a housing, wherein said electrode pattern structure is immediately adjacent to an internal surface of said housing, and wherein said plurality of lines connect said at least one first electrode and said at least one second electrode of said electrode pattern structure to said processor.

11. A touch device having said electrode pattern structure of claim 1 comprising:
a display with a polarizer;
a plurality of lines; and
a processor, wherein said electrode pattern structure is immediately adjacent to an internal surface of said polarizer, and wherein said electrode pattern structure is transparent, and said plurality of lines connect said at least one first electrode and said at least one second electrode of said electrode pattern structure to said processor.

12. A touch device having said electrode pattern structure of claim 1 comprising:
a display;
a plurality of lines; and
a processor, wherein said electrode pattern structure is located on said display, and wherein said electrode pattern structure is transparent, and said plurality of lines connect said at least one first electrode and said at least one second electrode of said electrode pattern structure to said processor.

13. The touch device of claim 11 or 12 , wherein said display is a liquid crystal display.

14. An electrode pattern structure of a touch panel, comprising:
a substrate;
at least one first electrode disposed on said substrate;
an insulator comprising an insulator piece disposed on said at least one first electrode;
at least one second electrode disposed on said insulator piece and crossing over said insulator piece and said at least one first electrode at at least one intersection of said at least one first electrode and said at least one second ele

Assignees

• Liu Chen-Yu
• Lee Lu-Hsing
• Tpk Touch Solutions Inc

Inventors

• Liu Chen-Yu
• Lee Lu-Hsing

Classifications

• G02F1/13338 Primary

  Input devices, e.g. touch panels · CPC title

• G06F3/044 Primary

  by capacitive means · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F2203/04111

  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 title

• Y10T29/49117

  Conductor or circuit manufacturing · CPC title