Touch panel having a insulation layer

• US 9,537,483 B2
• Filed: 09/17/2014
• Issued: 01/03/2017
• Est. Priority Date: 08/19/2009
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: Huang, Po-Shan, Chao, Chih-Han, Shih, Po-Sheng, Cheng, Jia-Shyong
• Primary Examiner(s): Mengistu, Amare
• Assistant Examiner(s): MATHEWS, CRYSTAL
• Application Number:
  US14/489,081
• Publication Number:
  US 20150035642A1
• Time in Patent Office: 839 Days
• US Class Current: 1/1
• 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 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
• CPC Class Codes: H03K 17/9645 Resistive touch switches
• CPC Class Codes: H03K 2217/96015 Constructional details for touch switches
• CPC Class Codes: Y10S 977/956 Of mechanical property

Abstract

A touch panel including a first insulation substrate, a first conductive film, a first insulation film, first conductive wires, a second insulation substrate, a second conductive film, and second conductive wires is provided. The first conductive film is disposed on the first insulation substrate and the first insulation layer covers a portion of a periphery of the first conductive film so that the first conductive film has an exposed region. The first conductive wires are disposed on the periphery of the first conductive film and each of the first conductive wires includes an electrode segment and an extending segment. The electrode segment is electrically connected with the first conductive film and the extending segment is electrically isolated from the first conductive film. The second conductive film is disposed on the second insulation substrate. The second conductive wires are disposed on the periphery of the second conductive film.

Claims

1. A touch panel, comprising:

a first insulation substrate;

a first conductive film, covering said first insulation substrate, wherein said first conductive film comprises a first side, a second side, a third side, and a fourth side;

a first insulation layer, covering a continuous margin area along said first side, second side, and third side of said first conductive so that the first conductive film has a first exposed region uncovered by said first insulation layer;

a first conductive wire, disposed at a first portion of the first conductive film closest to the first side, comprising;

a first electrode segment, contacting with the first exposed region to be electrically connected to the first conductive film; and

a first extending segment, contacting with the first insulation layer to be isolated from the first conductive film;

a second conductive wire, disposed at a second portion of the first conductive film, comprising;

a second electrode segment, contacting with the first exposed region to be electrically connected to the first conductive film; and

a second extending segment, contacting with the first insulation layer along with said second side and isolated from the first conductive film;

a dummy wire, deposited on said first insulation layer along said third side and isolated from the first conductive film;

a second insulation substrate, wherein the second insulation substrate is for connecting with an external circuit;

a second conductive film, covering a second surface of the second insulation substrate, wherein the second conductive film has a first region and a plurality of second regions, the first region and the second regions are separated from one another;

a third conductive wire, disposed on the second conductive film;

a fourth conductive wire, disposed on the second conductive film; and

a plurality of connecting wires disposed on two or more of the second regions, wherein one of the connecting wires is extended from a corner of the first conductive film to an adjacent corner thereof, the connecting wires and one of the first conductive wires are disposed at a same side of the first insulation substrate, each of the connecting wires has an external connecting terminal and an inner connecting terminal, and the inner connecting terminals are respectively electrically connected to the second conductive wires;

wherein the second electrode segment contacts with the first region, and the second extending segment contacts with one of the second regions.

2. The touch panel as claimed in claim 1, further comprising a plurality of conductive pads separately disposed on a portion of the second regions, the conductive pads being not electrically connected with the second conductive wires, the first extending segments being respectively electrically connected to the external circuit through the conductive pads, a terminal of each second extending segment being configured with a contact point, and the second conductive wires being respectively electrically connected to the external circuit through the contact points.

3. The touch panel as claimed in claim 2, each of the connecting wires having an external connecting terminal and an inner connecting terminal opposite to the external connecting terminal, the conductive pads being respectively configured in the external connecting terminal, and a terminal of the first conductive wires being electrically connected to the inner connecting terminals.

4. The touch panel as claimed in claim 1, wherein said second conductive film comprises:

a first region; and

a plurality of electrically separated second regions;

wherein said third conductive wire comprises;

a third electrode segment, electrically connected with the first region; and

a third extending segment, disposed on at least one of said plurality of electrically separated second regions; and

wherein said fourth conductive wire comprises;

a fourth electrode segment, electrically connected with the first region; and

a fourth extending segment, disposed on at least one of said plurality of electrically separated second regions.

5. A touch panel, comprising:

a first insulation substrate having a first conductive film contacting with the first insulation substrate, the first conductive film having a first region and a plurality of second regions, and the first region and the second regions being separated from one another;

a first insulation layer covering a portion of a periphery of the first conductive film so that the first conductive film has a first exposed region;

a plurality of first conductive wires separately disposed at the periphery of the first conductive film, and each of the first conductive wires comprising;

a first electrode segment contacting with the first exposed region to be electrically connected to the first conductive film; and

a first extending segment contacting with one of the second regions and with the first insulation layer to be isolated from the first conductive film;

a second insulation substrate having a second conductive film thereon contacting with the second insulation substrate;

a plurality of second conductive wires separately disposed on a periphery of the second conductive film; and

a plurality of connecting wires disposed on two or more of the second regions, wherein one of the connecting wires is extended from a corner of the first conductive film to an adjacent corner thereof, the connecting wires and one of the first conductive wires are disposed at a same side of the first insulation substrate, each of the connecting wires has an external connecting terminal and an inner connecting terminal, and the inner connecting terminals are respectively electrically connected to the second conductive wires;

wherein the first insulation substrate is for connecting with an external circuit.

6. The touch panel as claimed in claim 5, wherein the second insulation substrate is more adjacent to a touch surface of the touch panel than the first insulation substrate is.

7. The touch panel as claimed in claim 5, wherein the second insulation substrate is a decorative substrate having patterns, characters, or a combination thereof.

8. The touch panel as claimed in claim 5, wherein the first insulation layer comprises:

a first sub-insulation layer;

a second sub-insulation layer, the first sub-insulation layer and the second sub-insulation layer being respectively disposed at two opposite margins of the first conductive film; and

a third sub-insulation layer disposed on a margin of the first conductive film and connecting with the first sub-insulation layer and the second sub-insulation layer.

9. The touch panel as claimed in claim 8, further comprising:

a plurality of conductive pads separately disposed on the first sub-insulation layer, the conductive pads being not electrically connected with the first conductive wires, and the second conductive wires being respectively electrically connected to the external circuit through the conductive pads.

10. The touch panel as claimed in claim 9, each of the connecting wires having an external connecting terminal and an inner connecting terminal opposite to the external connecting terminal, the conductive pads being respectively configured in the external connecting terminal, and a terminal of the second conductive wires being electrically connected to the inner connecting terminals.

11. The touch panel as claimed in claim 10, wherein a portion of one of the connecting wires is disposed above the third sub-insulation layer and one of the first conductive wires.

12. The touch panel as claimed in claim 10, wherein a portion of one of the connecting wires is disposed above the third sub-insulation layer and adjacent to one of the first conductive wires.

13. The touch panel as claimed in claim 5, wherein one of the first conductive film and the second conductive film comprises a carbon nanotube film.

14. A touch panel, comprising:

a first insulation substrate having a first conductive film contacting with the first insulation substrate, the first conductive film having a first region and a plurality of second regions, and the first region and the second regions being separated from one another;

a plurality of first conductive wires separately disposed at a periphery of the first conductive film, and each of the first conductive wires comprising;

a first electrode segment contacting with the first region to be electrically connected to the first region; and

a first extending segment contacting with one of the second regions

a second insulation substrate having a second conductive film contacting with the second insulation substrate;

a plurality of second conductive wires separately disposed on a periphery of the second conductive film;

wherein the first insulation substrate is for connecting with an external circuit; and

a plurality of connecting wires disposed on two or more of the second regions, wherein one of the connecting wires is extended from a corner of the first conductive film to an adjacent corner thereof, the connecting wires and one of the first conductive wires are disposed at a same side of the first insulation substrate, each of the connecting wires has an external connecting terminal and an inner connecting terminal, and the inner connecting terminals are respectively electrically connected to the second conductive wires.

15. The touch panel as claimed in claim 14, further comprising:

an insulation layer covering a portion of the periphery of the first conductive film and covering a portion of one of the first conductive wires;

wherein a first connecting wire of the connecting wires is disposed on the insulation layer and extended from a corner of the first conductive film to an adjacent corner thereof, the first connecting wire and the first electrode segment of the first conductive wire covered by the insulation layer being respectively disposed at two opposite sides of the insulation layer, each of the connecting wires having an external connecting terminal and an inner connecting terminal, and the inner connecting terminal being respectively electrically connected to the second conductive wires.

16. The touch panel as claimed in claim 15, wherein a second connecting wire of the connecting wires is disposed on one of the second regions.

17. The touch panel as claimed in claim 14, wherein one of the first conductive film and the second conductive film comprises a carbon nanotube film.