ACTIVE DEVICE ARRAY SUBSTRATE AND TOUCH DISPLAY PANEL

• US 20110157043A1
• Filed: 12/08/2010
• Published: 06/30/2011
• Est. Priority Date: 12/29/2009
• Status: Abandoned Application

• Current Assignee: Dongguan Masstop Liquid Crystal Display Company Limited (Wintek Corporation), Wintek Corporation
• Original Assignee: Dongguan Masstop Liquid Crystal Display Company Limited (Wintek Corporation), Wintek Corporation
• Inventors: Liao, Hsiao-Hui, Chang, Ting-Yu, Wang, Po-Hsien, Hsu, Ching-Fu, Lai, Chih-Chang
• Application Number:
  US12/962,668
• Publication Number:
  US 20110157043A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• 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

Abstract

An active device array substrate including an active device array and a plurality of touch sensing electrodes is provided. The active device array is disposed on a substrate. The touch sensing electrodes are disposed on the substrate, and the active device array and the touch sensing electrodes are insulated with each other so as to form a sensing capacitance between the active device array and the touch sensing electrodes.

Claims

1. A an active device array substrate, comprising:

a substrate;

an active device array, disposed on a surface of the substrate; and

a plurality of touch sensing electrodes, disposed on the surface of the substrate, wherein the touch sensing electrodes are insulated to the active device array, so as to form a sensing capacitance between the touch sensing electrodes and the active device array.

2. The active device array substrate as claimed in claim 1, wherein the active device array comprises a plurality of scan lines, a plurality of data lines and a plurality of pixel structures, each of the pixel structures is electrically connected to one of the scan lines and one of the data lines, and the scan lines are not parallel to the data lines.

3. The active device array substrate as claimed in claim 2, wherein each of the touch sensing electrodes stretches across the scan lines.

4. The active device array substrate as claimed in claim 1, wherein the substrate has a display side and a device side opposite to the display side, the active device array is disposed at the device side, and the touch sensing electrodes are disposed at the display side.

5. The active device array substrate as claimed in claim 1, wherein the substrate has a display side and a device side opposite to the display side, and the touch sensing electrodes, an insulation layer and the active device array are sequentially disposed at the device side.

6. The active device array substrate as claimed in claim 1, wherein each of the touch sensing electrodes stretches across a plurality of the data lines.

7. The active device array substrate as claimed in claim 6, wherein each of the touch sensing electrodes has a plurality of openings, and each opening exposes one of the data lines.

8. The active device array substrate as claimed in claim 1, further comprising a plurality of dummy electrodes, wherein the dummy electrodes and the touch sensing electrodes are formed by a same film layer, and the dummy electrodes are disposed between two adjacent touch sensing electrodes.

9. A touch display panel, comprising:

an active device array substrate, comprising;

an active device array, disposed on a substrate;

a plurality of touch sensing electrodes, disposed on the substrate, wherein the touch sensing electrodes are insulated to the active device array, so as to form a sensing capacitance between the touch sensing electrodes and the active device array;

a counter substrate, having a counter electrode layer; and

a display medium layer, located between the active device array and the counter electrode layer.

10. The touch display panel as claimed in claim 9, wherein the active device array comprises a plurality of scan lines, a plurality of data lines and a plurality of pixel structures, each of the pixel structures is electrically connected to one of the scan lines and one of the data lines, the scan lines are not parallel to the data lines, and the substrate is a transparent substrate.

11. The touch display panel as claimed in claim 10, wherein each of the touch sensing electrodes stretches across the scan lines.

12. The touch display panel as claimed in claim 9, wherein the substrate has a display side and a device side opposite to the display side, the active device array is disposed at the device side, and the touch sensing electrodes are disposed at the display side.

13. The touch display panel as claimed in claim 9, wherein the substrate has a display side and a device side opposite to the display side, and the touch sensing electrodes, an insulation layer and the active device array are sequentially disposed at the device side.

14. The touch display panel as claimed in claim 9, wherein each of the touch sensing electrodes stretches across a plurality of the data lines.

15. The touch display panel as claimed in claim 14, wherein each of the touch sensing electrodes has a plurality of openings, and each opening exposes one of the data lines.

16. The touch display panel as claimed in claim 9, wherein the active device array substrate further comprises a plurality of dummy electrodes, wherein the dummy electrodes and the touch sensing electrodes are formed by a same film layer, and the dummy electrodes are disposed between two adjacent touch sensing electrodes.

17. The touch display panel as claimed in claim 9, further comprising an integrator electrically connected to the touch sensing electrodes, for calculating a position of a conductor object according to a variation of the sensing capacitance.

18. The touch display panel as claimed in claim 9, further comprising a color filter layer disposed on the active device array substrate or the counter substrate.

19. The touch display panel as claimed in claim 9, wherein a material of the display medium layer is a liquid crystal material, a plasma material, an organic light emitting diode, or an electrophoresis material.