TOUCH PANEL AND TOUCH DISPLAY PANEL

• US 20100123681A1
• Filed: 05/19/2009
• Published: 05/20/2010
• Est. Priority Date: 11/19/2008
• Status: Abandoned Application

• Current Assignee: AU Optronics Corporation
• Original Assignee: AU Optronics Corporation
• Inventors: Wu, Yuan-Chun, Lee, Hsin-Hung, Ma, Mei-Sheng, Cheng, Kuo-Hsing
• Application Number:
  US12/468,072
• Publication Number:
  US 20100123681A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Abstract

A touch panel and a touch display panel are provided. The touch panel includes a substrate on which a touch layer and a color filter layer are disposed. The touch layer includes touch electrodes, signal lines, and a shielding layer. Each signal line is electrically connected only to one touch electrode. The touch display panel includes an array substrate, a color filter substrate having a touch area and a non-touch area, and a liquid crystal layer. The color filter substrate includes touch electrodes, signal lines, color filter patterns, and a shielding layer which has transparent areas. The touch electrodes are disposed in the touch area and above the shielding layer. The signal lines are disposed above the shielding layer. Each signal line is connected only to one touch electrode. The color filter patterns are disposed above the touch electrode and correspond to the transparent areas of the shielding layer.

Claims

1. A touch display panel, comprising:

an array substrate;

a color filter substrate disposed opposite to the array substrate and having a touch area and a non-touch area, the color filter substrate comprising;

a shielding layer having a plurality of transparent areas;

a plurality of touch electrodes disposed in the touch area and above the shielding layer;

a plurality of signal lines disposed above the shielding layer, each of the signal lines being connected to only one of the touch electrodes; and

a plurality of color filter patterns disposed above the touch electrodes and corresponding to the transparent areas of the shielding layer; and

a liquid crystal layer sandwiched between the array substrate and the color filter substrate.

2. The touch display panel as claimed in claim 1, wherein

the touch electrodes comprise a plurality of first touch electrodes and a plurality of second touch electrodes;

and

the signal lines comprise a plurality of first signal lines and a plurality of second signal lines,

wherein each of the first signal lines is connected to only one of the first touch electrodes and extends along a first direction, and each of the second signal lines is connected to only one of the second touch electrodes and extends along a second direction different from the first direction.

3. A touch display panel, comprising:

an array substrate;

a color filter substrate disposed opposite to the array substrate and having a touch area and a non-touch area, the color filter substrate comprising;

a plurality of touch electrodes disposed in the touch area, each of the touch electrodes having a plurality of transparent areas;

a plurality of signal lines, each of the signal lines being connected to only one of the touch electrodes;

a shielding layer disposed corresponding to a gap between the every two adjacent touch electrodes; and

a plurality of color filter patterns disposed above the touch electrodes and the shielding layer, the color filter patterns corresponding to the transparent areas of the touch electrodes; and

a liquid crystal layer sandwiched between the array substrate and the color filter substrate.

4. The touch display panel as claimed in claim 3, wherein

the touch electrodes comprise a plurality of first touch electrodes and a plurality of second touch electrodes;

and

the signal lines comprise a plurality of first signal lines and a plurality of second signal lines,

wherein each of the first signal lines is connected to only one of the first touch electrodes and extends along a first direction, and each of the second signal lines is connected to only one of the second touch electrodes and extends along a second direction different from the first direction.

5. A touch panel, comprising:

a substrate;

a touch layer disposed on the substrate and comprising a first touch electrode, a first signal line, and a shielding layer, the first signal line being electrically connected only to the first touch electrode; and

a color filter layer disposed on the substrate.

6. The touch panel as claimed in claim 5, wherein the first touch electrode has a non-transparent area and a transparent area.

7. The touch panel as claimed in claim 6, wherein the touch layer further comprises a first insulating layer disposed between the first touch electrode and the shielding layer.

8. The touch panel as claimed in claim 6, wherein the touch layer further comprises a first insulating layer disposed between the first touch electrode and the color filter layer.

9. The touch panel as claimed in claim 6, wherein the touch layer further comprises a first insulating layer disposed between the shielding layer and the color filter layer.

10. The touch panel as claimed in claim 5, wherein the touch layer further comprises a second touch electrode and a second signal line, and the second signal line is electrically connected only to the second touch electrode.

11. The touch panel as claimed in claim 10, wherein the second touch electrode has a non-transparent area and a transparent area.

12. The touch panel as claimed in claim 11, wherein the touch layer further comprises a second insulating layer disposed between the second touch electrode and the first touch electrode.

13. The touch panel as claimed in claim 11, wherein the touch layer further comprises a second insulating layer disposed between the second touch electrode and the shielding layer.

14. The touch panel as claimed in claim 11, wherein the touch layer further comprises a second insulating layer disposed between the second touch electrode and the color filter layer.

15. The touch panel as claimed in claim 10, wherein the first signal line is parallel to the second signal line.

16. The touch panel as claimed in claim 10, wherein a primary gap exists between the first touch electrode and the second touch electrode.

17. The touch panel as claimed in claim 16, wherein the shielding layer comprises a primary shielding area corresponding to the primary gap.

18. The touch panel as claimed in claim 17, wherein the color filter layer comprises a plurality of color filter patterns, and a secondary gap exists between every two of the color filter patterns.

19. The touch panel as claimed in claim 18, wherein the shielding layer further comprises a secondary shielding area corresponding to the secondary gap.

20. The touch panel as claimed in claim 5, the shielding layer can be in the same layer together with the first touch electrode.

21. The touch panel as claimed in claim 10, the shielding layer can be in the same layer together with the second touch electrode.

22. A touch display panel, comprising:

an array substrate;

a touch panel as claimed in claim 5 disposed opposite to the array substrate; and

a liquid crystal layer, sandwiched between the array substrate and the touch panel.