TOUCH PANEL

• US 20110148823A1
• Filed: 12/01/2010
• Published: 06/23/2011
• Est. Priority Date: 12/22/2009
• Status: Abandoned Application

• Current Assignee: Delta Electronics Incorporated
• Original Assignee: Delta Electronics Incorporated
• Inventors: CHEN, Yang-Lin
• Application Number:
  US12/957,994
• Publication Number:
  US 20110148823A1
• Time in Patent Office: Days
• US Class Current: 345/176
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• 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 touch panel includes a first substrate, a first transparent conductive film and a first stack layer. The first transparent conductive film having a first pattern is formed at one side of the first substrate. The first stack layer having the first pattern is stacked on the first transparent conductive film, wherein the first stack layer is preferably composed of alternately stacked high-refraction-index and low-refraction-index layers.

Claims

1. A touch panel comprising:

a first substrate;

a first transparent conductive film having a first pattern and formed at a side of the first substrate; and

a first stack layer having the first pattern stacked on the first transparent conductive film.

2. The touch panel as claimed in claim 1, further comprising a top substrate and a first filler layer, wherein the first filler layer is formed at a side of the substrate having the first transparent conductive film, and the top substrate is formed on the filler layer.

3. The touch panel as claimed in claim 1, further comprising a first filler layer and a top layer sequentially formed on a side of the substrate having the first transparent conductive film and the first stack layer.

4. The touch panel as claimed in claim 1, further comprising a top substrate, a first filler layer, bottom substrate and a second filler layer, wherein the top substrate is bonded to another side of the substrate through the first filler layer, and the bottom substrate is bonded to the side of the first substrate having the first transparent conductive film and the first stack layer.

5. The touch panel as claimed in claim 1, further comprising a first filler layer formed over a side of the substrate having the first transparent conductive film and the first stack layer.

6. The touch panel as claimed in claim 5, further comprising:

a second transparent conductive film having a second pattern; and

a second stack layer having the second pattern, wherein the second transparent conductive film and the second stack layer are sequentially formed on the first filler layer.

7. The touch panel as claimed in claim 6, further comprising a top substrate and a second filler layer, wherein the top substrate is bonded to a side of the substrate having the second transparent conductive film and the second stack layer through the second filler layer.

8. The touch panel as claimed in claim 1, further comprising a second transparent conductive film and a second stack layer, wherein both the second transparent conductive film and the second stack layer have the second pattern, and the second transparent conductive film and the second stack layer are sequentially formed on another side of the first substrate.

9. The touch panel as claimed in claim 8, further comprising a top substrate and a first filler layer, wherein the top substrate is bonded to a side of the top substrate having the second transparent conductive film and the second stack layer through the first filler layer.

10. The touch panel as claimed in claim 8, further comprising a bottom substrate and a second filler layer, wherein the bottom substrate is bonded to a side of the top substrate having the second transparent conductive film and the second stack layer through the second filler layer.

11. The touch panel as claimed in claim 1, further comprising a second substrate, a second transparent conductive film and a second stack layer, wherein the second stack layer and the second transparent conductive film have the second pattern and are sequentially formed on a side of the second substrate.

12. The touch panel as claimed in claim 11, further comprising a first filler layer, wherein the another side of the second substrate is bonded under a side of the first substrate having the first transparent conductive film and the first stack layer through the first filler layer.

13. The touch panel as claimed in claim 12, further comprising a second filler layer and a top substrate, wherein the top substrate is bonded over another side of the first substrate through the second filler layer.

14. The touch panel as claimed in claim 12, further comprising a third filler layer and a bottom substrate, wherein the bottom substrate is bonded under a side of the second substrate having the second transparent conductive film and the second stack layer through the third filler layer.

15. The touch panel as claimed in claim 1, wherein the first stack layer is a composite layer, the first stack layer comprises alternately stacked high-refraction-index and low-refraction-index films, and the first stack layer comprises alternately stacked silicon oxide thin films and silicon nitride thin films.

16. The touch panel as claimed in claim 6, wherein the second stack layer is a composite layer, the second stack layer comprises alternately stacked high-refraction-index and low-refraction-index films, and the second stack layer comprises alternately stacked silicon oxide thin films and silicon nitride thin films.

17. The touch panel as claimed in claim 2, further comprising a top layer formed on the top substrate, the top layer is a single anti-reflection layer, a anti-reflection multi-layer, an anti glare layer, an anti subbing layer, a hardening layer or fingerprint preventing layer.

18. The touch panel as claimed in claim 1, further comprising a bottom layer formed under the bottom substrate, wherein the bottom layer is a noise preventing layer comprising a second transparent conductive film, a single anti-reflection layer, a anti-reflection multi-layer, an anti glare layer, an anti subbing layer, a hardening layer or fingerprint preventing layer.

19. The touch panel as claimed in claim 1, wherein the first pattern comprises at least one first transparent conductive strip extending along a first direction, and the second pattern comprises at least one second transparent conductive strip extending along a second direction, the first direction and the second direction are substantially perpendicular.

20. The touch panel as claimed in claim 19, wherein the first transparent conductive strip and the second transparent conductive strip are formed of serially connected rhombuses.