Transparent touch panel

• US 20070240914A1
• Filed: 04/12/2007
• Published: 10/18/2007
• Est. Priority Date: 04/14/2006
• Status: Abandoned Application

• Current Assignee: RITDISPLAY CORPORATION
• Original Assignee: RITDISPLAY CORPORATION
• Inventors: Chang, Yih, Tang, Tung Yang, Kuo, Chun Chieh, Lai, Yuang Wei
• Application Number:
  US11/783,848
• Publication Number:
  US 20070240914A1
• Time in Patent Office: Days
• US Class Current: 178/18.60
• 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

A transparent touch panel according to this aspect of the present invention comprises a transparent substrate, a capacitive touch device positioned on the transparent substrate, an interfacial structure positioned on the capacitive touch device, and a display device positioned on the interfacial structure. The capacitive touch device includes a plurality of first sensing blocks positioned on the transparent substrate, a dielectric layer covering the first sensing blocks, a plurality of second sensing blocks positioned on the dielectric layer, a plurality of first wires positioned on the transparent substrate, and a plurality of second wires positioned on the dielectric layer. Preferably, the first sensing blocks and the second sensing blocks are interlaced, each first wire connects the first sensing blocks on the same column, and each second wire connects the second sensing blocks on the same row.

Claims

1. A transparent touch panel, comprising:

a transparent substrate;

a capacitive touch device positioned on the transparent substrate;

an interfacial structure positioned on the capacitive touch device; and

a display device positioned on the interfacial structure.

2. The transparent touch panel of claim 1, wherein the capacitive touch device includes:

a first conductive pattern positioned on the transparent substrate;

a dielectric layer covering the first conductive pattern; and

a second conductive pattern positioned on the dielectric layer.

3. The transparent touch panel of claim 2, wherein the first conductive pattern includes a plurality of first sensing blocks positioned in an array manner, and the second conductive pattern includes a plurality of second sensing blocks positioned in an array manner.

4. The transparent touch panel of claim 3, wherein the first sensing blocks and the second sensing blocks are interlaced.

5. The transparent touch panel of claim 3, wherein the capacitive touch device further includes:

a plurality of first wires positioned on the transparent substrate, each first wire connecting the first sensing blocks on the same column; and

a plurality of second wires positioned on the dielectric layer, each second wire connecting the second sensing blocks on the same row.

6. The transparent touch panel of claim 3, wherein the first sensing blocks or the second sensing blocks include indium tin oxide, indium zinc oxide, or aluminum zinc oxide.

7. The transparent touch panel of claim 1, wherein the capacitive touch device includes:

a first conductive pattern positioned on the transparent substrate;

a second conductive pattern positioned on the transparent substrate; and

a dielectric layer covering the first conductive pattern and the second conductive pattern.

8. The transparent touch panel of claim 7, wherein the first conductive pattern includes a plurality of first sensing blocks positioned in an array manner, and the second conductive pattern includes a plurality of second sensing blocks positioned in an array manner.

9. The transparent touch panel of claim 8, wherein the first sensing blocks and the second sensing blocks are interlaced.

10. The transparent touch panel of claim 8, wherein the capacitive touch device further includes:

a plurality of first wires positioned on the transparent substrate, each first wire connecting the first sensing blocks on the same column; and

a plurality of second wires positioned on the dielectric layer, each second wire connecting the second sensing blocks on the same row via a plurality of conductive plugs penetrating the dielectric layer.

11. The transparent touch panel of claim 8, wherein the first sensing blocks or the second sensing blocks include indium tin oxide, indium zinc oxide, or aluminum zinc oxide.

12. The transparent touch panel of claim 1, wherein the interfacial structure includes:

an insulating polymer layer positioned on the capacitive touch device; and

a silicon oxide layer positioned on the insulating polymer layer.

13. The transparent touch panel of claim 12, wherein the insulating polymer layer includes epoxy resin, polyimide, polyvinyl chloride, or methyl methacrylate.

14. The transparent touch panel of claim 12, wherein the interfacial structure further includes a conductive layer positioned between the insulating polymer layer and the silicon oxide layer.

15. The transparent touch panel of claim 14, wherein the conductive layer includes indium tin oxide, indium zinc oxide, or aluminum zinc oxide.

16. The transparent touch panel of claim 1, wherein the transparent substrate includes glass, polycarbonate, or methyl methacrylate.

17. The transparent touch panel of claim 1, wherein the display device is electro luminescent display device, organic light-emitting display device, or liquid crystal display device.

18. A transparent touch panel, comprising:

a transparent substrate having a top surface and a bottom surface;

a display device positioned on the top surface;

an interfacial structure positioned on the bottom surface; and

a capacitive touch device positioned on the interfacial structure.

19. The transparent touch panel of claim 18, wherein the capacitive touch device includes:

a first conductive pattern positioned on the transparent substrate;

a dielectric layer covering the first conductive pattern; and

a second conductive pattern positioned on the dielectric layer.

20. The transparent touch panel of claim 19, wherein the first conductive pattern includes a plurality of first sensing blocks positioned in an array manner, and the second conductive pattern includes a plurality of second sensing blocks positioned in an array manner.

21. The transparent touch panel of claim 20, wherein the first sensing blocks and the second sensing blocks are interlaced.

22. The transparent touch panel of claim 20, wherein the capacitive touch device further includes:

a plurality of first wires positioned on the transparent substrate, each first wire connecting the first sensing blocks on the same column; and

a plurality of second wires positioned on the dielectric layer, each second wire connecting the second sensing blocks on the same row.

23. The transparent touch panel of claim 20, wherein the first sensing blocks or the second sensing blocks include indium tin oxide, indium zinc oxide, or aluminum zinc oxide.

24. The transparent touch panel of claim 18, wherein the capacitive touch device includes:

a first conductive pattern positioned on the transparent substrate;

a second conductive pattern positioned on the transparent substrate; and

a dielectric layer covering the first conductive pattern and the second conductive pattern.

25. The transparent touch panel of claim 24, wherein the first conductive pattern includes a plurality of first sensing blocks positioned in an array manner, and the second conductive pattern includes a plurality of second sensing blocks positioned in an array manner.

26. The transparent touch panel of claim 25, wherein the first sensing blocks and the second sensing blocks are interlaced.

27. The transparent touch panel of claim 25, wherein the capacitive touch device further includes:

a plurality of first wires positioned on the transparent substrate, each first wire connecting the first sensing blocks on the same column; and

a plurality of second wires positioned on the dielectric layer, each second wire connecting the second sensing blocks on the same row via a plurality of conductive plugs penetrating the dielectric layer.

28. The transparent touch panel of claim 25, wherein the first sensing blocks or the second sensing blocks include indium tin oxide, indium zinc oxide, or aluminum zinc oxide.

29. The transparent touch panel of claim 18, wherein the interfacial structure includes:

a conductive layer positioned on the bottom surface; and

an insulating polymer layer positioned on the conductive layer.

30. The transparent touch panel of claim 29, wherein the conductive layer includes indium tin oxide, indium zinc oxide, or aluminum zinc oxide.

31. The transparent touch panel of claim 29, wherein the insulating polymer layer includes epoxy resin, polyimide, polyvinyl chloride, or methyl methacrylate.

32. The transparent touch panel of claim 18, wherein the transparent substrate includes glass, polycarbonate, or methyl methacrylate.

33. The transparent touch panel of claim 18, wherein the display device is electro luminescent display device, organic light-emitting display device, or liquid crystal display device.

34. The transparent touch panel of claim 18, further comprising a protective polymer layer covering the capacitive touch device.