TOUCH PANEL DISPLAY

• US 20100302178A1
• Filed: 08/12/2009
• Published: 12/02/2010
• Est. Priority Date: 05/27/2009
• Status: Active Grant

• Current Assignee: AU Optronics Corporation
• Original Assignee: AU Optronics Corporation
• Inventors: Chen, Chien-Liang, Liu, Po-Yuan, Lee, Hao-Chieh, Kuo, Chun-Ku
• Granted Patent: US 8,421,760 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads

Abstract

A touch panel display including a first substrate, a second substrate, a display medium and a touch device is provided. The first substrate has a display area and a peripheral area. The first substrate has a pixel array in the display area and at least one integrated driving circuit in the peripheral area. The integrated driving circuit is electrically connected to the pixel array. The second substrate is disposed above the first substrate to cover the integrated driving circuit and the pixel array. The display medium is disposed on the pixel array and located between the first substrate and the second substrate. The touch device is disposed on the second substrate, and has a sensor element and a wiring element connected to the sensor element. The sensor element is located above the pixel array and the wiring element is located above at least a portion of the integrated driving circuit.

Claims

1. A touch panel display, comprising:

a first substrate having a display area and a peripheral area, and the first substrate having a pixel array in the display area and at least one integrated driving circuit in the peripheral area, wherein the integrated driving circuit is electrically connected to the pixel array;

a second substrate disposed above the first substrate to cover the integrated driving circuit and the pixel array;

a display medium disposed on the pixel array and located between the first substrate and the second substrate; and

a touch device disposed on the second substrate and having a sensor element and a wiring element connected to the sensor element, wherein the sensor element is located above the pixel array and the wiring element is located above at least a portion of the integrated driving circuit.

2. The touch panel display as claimed in claim 1, wherein the first substrate comprises a thin film transistor array substrate.

3. The touch panel display as claimed in claim 1, wherein the integrated driving circuit comprises at least a gate driver on array (GOA).

4. The touch panel display as claimed in claim 3, wherein a size of the first substrate is greater than a size of the second substrate.

5. The touch panel display as claimed in claim 1, wherein the integrated driving circuit comprises at least a source driver on array (SOA).

6. The touch panel display as claimed in claim 5, wherein a size of the first substrate is greater than a size of the second substrate.

7. The touch panel display as claimed in claim 1, wherein the integrated driving circuit comprises at least a gate driver on array (GOA) and at least a source driver on array (SOA).

8. The touch panel display as claimed in claim 7, wherein a size of the first substrate is substantially equal to a size of the second substrate.

9. The touch panel display as claimed in claim 7, wherein a size of the first substrate is greater than a size of the second substrate.

10. The touch panel display as claimed in claim 1, wherein the second substrate comprises a color filter substrate.

11. The touch panel display as claimed in claim 10, wherein the second substrate comprises:

an upper substrate; and

a common electrode disposed on the upper substrate, wherein the touch device and the common electrode are respectively located on two opposite surfaces of the upper substrate.

12. The touch panel display as claimed in claim 1, wherein the second substrate comprises a transparent substrate, wherein the touch device is located on an upper surface or a lower surface of the transparent substrate.

13. The touch panel display as claimed in claim 1, wherein the touch device has a connecting terminal coupled to the wiring element.

14. The touch panel display as claimed in claim 13, wherein the connecting terminal is located at any edge of the second substrate.

15. The touch panel display as claimed in claim 13, wherein the integrated driving circuit is located between the pixel array and the connecting terminal.

16. The touch panel display as claimed in claim 1, wherein a thickness of the integrated driving circuit is between 0.1 um to 100 um.

17. A touch panel display, comprising:

a first substrate having a display area and a peripheral area, and the first substrate having a pixel array in the display area and at least one integrated driving circuit in the peripheral area, wherein the integrated driving circuit is electrically connected to the pixel array;

a second substrate disposed above the first substrate to cover the integrated driving circuit and the pixel array;

a liquid crystal layer disposed on the pixel array and located between the first substrate and the second substrate;

a backlight module disposed below the first substrate to provide a light source; and

a touch device disposed on the second substrate and having a sensor element and a wiring element connected to the sensor element, wherein the sensor element is located above the pixel array and the wiring element is located above at least a portion of the integrated driving circuit.