TOUCH WINDOW

• US 20090309845A1
• Filed: 05/20/2009
• Published: 12/17/2009
• Est. Priority Date: 06/13/2008
• Status: Abandoned Application

• Current Assignee: Transtouch Technology Inc.
• Original Assignee: Transtouch Technology Inc.
• Inventors: Lin, Yu-Yuan, Tsui, Tai-an, CHEN, Kuang-Ta, Chen, Wei-Chih, Chuang, Hsing-Yu, Wu, Wen-Jung
• Application Number:
  US12/469,398
• Publication Number:
  US 20090309845A1
• Time in Patent Office: Days
• US Class Current: 345/173
• 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: H05K 3/403 Edge contacts; Windows or holes in the substrate having plural connections on the walls thereof H05K3/4092 takes precedence

Abstract

A touch window including a first transparent substrate, a second transparent substrate, a first conductive film and a pad is provided. The second transparent substrate is disposed on one side of the first transparent substrate, and the area of the first transparent substrate is larger than that of the second transparent substrate. The first conductive film is disposed on the second transparent substrate and is located between the first transparent substrate and the second transparent substrate. The pad is disposed on the same side of the first transparent substrate as the second transparent substrate being disposed.

Claims

1. A touch window, comprising:

a first transparent substrate;

a second transparent substrate disposed on one side of the first transparent substrate, wherein the area of the first transparent substrate is larger than that of the second transparent substrate;

a first conductive film disposed on the second transparent substrate and located between the first transparent substrate and the second transparent substrate; and

a pad disposed on the same side of the first transparent substrate as the second transparent substrate being disposed.

2. The touch window according to claim 1, further comprising:

an adhesive layer disposed between the first transparent substrate and the first conductive film for bonding the first transparent substrate and the first conductive film and for bonding the pad and the first transparent substrate.

3. The touch window according to claim 2, further comprising:

a second conductive film disposed on the second transparent substrate, wherein the first conductive film and the second conductive film are located on two opposite surfaces of the second transparent substrate, respectively.

4. The touch window according to claim 1, further comprising:

a second conductive film disposed between the first transparent substrate and the first conductive film;

a first adhesive layer disposed between the first conductive film and the second conductive film for bonding the first conductive film and the second conductive film; and

a second adhesive layer disposed between the pad and the second conductive film for bonding the pad and the second conductive film.

5. The touch window according to claim 4, wherein the first adhesive layer and the second adhesive layer are made of the same material.

6. The touch window according to claim 4, wherein the first adhesive layer and the second adhesive layer are formed as the same layer.

7. The touch window according to claim 4, further comprising:

a third transparent substrate disposed between the second conductive film and the first transparent substrate.

8. The touch window according to claim 7, wherein the area of the first transparent substrate is equal to that of the third transparent substrate.

9. The touch window according to claim 7, further comprising:

a third adhesive layer disposed between the first transparent substrate and the third transparent substrate for bonding the third transparent substrate and the first transparent substrate.

10. The touch window according to claim 4, further comprising:

a plurality of spacers disposed between the first conductive film and the second conductive film so as to form an interval therebetween.

11. The touch window according to claim 1, further comprising:

a third transparent substrate located between the first transparent substrate and the second transparent substrate;

a first adhesive layer disposed between the first transparent substrate and the third transparent substrate for bonding the first transparent substrate and the third transparent substrate and for bonding the pad and the first transparent substrate; and

a second conductive film disposed on the third transparent substrate, wherein the second conductive film faces the first conductive film;

wherein, the area of the first transparent substrate is larger than that of the third transparent substrate.

12. The touch window according to claim 11, wherein the pad is adjacent to or surrounds the second transparent substrate and the third transparent substrate.

13. The touch window according to claim 11, further comprising:

a second adhesive layer disposed between the second transparent substrate and the third transparent substrate for bonding the second transparent substrate and the third transparent substrate, so that the first conductive film and the second conductive film are bonded on two opposite surfaces of the second adhesive layer, respectively.

14. The touch window according to claim 1, wherein the pad is adjacent to or surrounds the second transparent substrate.

15. The touch window according to claim 1, wherein the first transparent substrate has a light transmitting area which substantially corresponds to the second transparent substrate.

16. The touch window according to claim 1, wherein the pad is made of an easy-to-process material.

17. The touch window according to claim 16, wherein the easy-to-process material is plastics or glass.

18. The touch window according to claim 1, wherein the first transparent substrate comprises one of a flexible material and a hard transparent material.

19. The touch window according to claim 18, wherein the flexible material is poly-ethylene terephthalate (PET).

20. The touch window according to claim 18, wherein the hard transparent material is glass or plastics.

21. The touch window according to claim 1, wherein the touch window comprises a plurality of pads.