TOUCH DISPLAY PANEL AND DISPLAY APPARATUS

• US 20110080376A1
• Filed: 11/16/2009
• Published: 04/07/2011
• Est. Priority Date: 10/05/2009
• Status: Abandoned Application

• Current Assignee: AU Optronics Corporation
• Original Assignee: AU Optronics Corporation
• Inventors: Kuo, Jing-Tin, Lee, Kuo-Hsien, Ma, Mei-Sheng
• Application Number:
  US12/618,780
• Publication Number:
  US 20110080376A1
• Time in Patent Office: Days
• US Class Current: 345/177
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G06F 2203/04107 Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0436 in which generating transducers and detecting transducers are attached to a single acoustic waves transmission substrate

Abstract

A touch display panel including a first substrate, a touch sensing device, and a display medium layer is provided. The first substrate has a display area and a non-display area located outside the display area. The touch sensing device may be directly disposed on the first substrate and located within the non-display area, wherein the touch sensing device is consisted of two or more groups of receiving elements. The display medium layer is disposed in the display area.

Claims

1. A touch display panel, comprising:

a first substrate having a display area and a non-display area located outside the display area;

a touch sensing device disposed on the first substrate and located within the non-display area, wherein the touch sensing device is consisted of two or more groups of receiving elements; and

a display medium layer disposed in the display area.

2. The touch display panel as claimed in claim 1, wherein each group of the receiving elements is consisted of one or more piezoelectrical components and a transmitting line, and the transmitting line serially connects the one or more piezoelectrical components.

3. The touch display panel as claimed in claim 2, wherein a line straightly connecting any two piezoelectrical components does not pass through a center of the display area.

4. The touch display panel as claimed in claim 1, wherein the first substrate has an active device array, the display medium layer is driven by the active device array, and the display medium layer and the active device array are located at a same side of the first substrate.

5. The touch display panel as claimed in claim 4, further comprising at least a shielding line disposed between the active device array and the touch sensing device, located in the non-display area, and the shielding line being applied to a ground voltage or a common voltage.

6. The touch display panel as claimed in claim 4, wherein the first substrate further has a first pad portion and a second pad portion respectively located within the non-display area, the touch sensing device is connected to the first pad portion, and the active device array is connected to the second pad portion.

7. The touch display panel as claimed in claim 6, wherein the first pad portion and the second pad portion are respectively located at different sides of the display area.

8. The touch display panel as claimed in claim 1, further comprising a second substrate, and the display medium layer being disposed between the first substrate and the second substrate.

9. The touch display panel as claimed in claim 8, wherein the display medium layer is a plasma layer.

10. The touch display panel as claimed in claim 8, wherein the display medium layer is a liquid crystal layer.

11. The touch display panel as claimed in claim 10, further comprising a first polarizer and a second polarizer, and the first substrate and the second substrate are located between the first polarizer and the second polarizer.

12. The touch display panel as claimed in claim 8, wherein the second substrate has an active device array, the display medium layer is driven by the active device array, and the touch sensing device is located at a side of the first substrate away from the display medium layer.

13. The touch display panel as claimed in claim 8, wherein the first substrate or the second substrate has a color filter layer.

14. The touch display panel as claimed in claim 1, wherein the display medium layer is an electro-phoretic display film or an organic light emitting device layer.

15. The touch display panel as claimed in claim 1, wherein a width of the non-display area is 1 mm to 10 mm.

16. A display apparatus, comprising:

a frame; and

the touch display panel as claimed in claim 1 located in the frame.

17. The display apparatus as claimed in claim 16;

further comprising a protective sheet disposed on the frame and covering the touch display panel.

18. The display apparatus as claimed in claim 16, further comprising a display light source disposed between the frame and the touch display panel.