TOUCH PANEL AND PIXEL ARAY THEREOF

• US 20110310036A1
• Filed: 04/29/2011
• Published: 12/22/2011
• Est. Priority Date: 06/18/2010
• Status: Abandoned Application

• Current Assignee: HannStar Display Corporation
• Original Assignee: HannStar Display Corporation
• Inventors: JUAN, Yi Chung, LIN, Sung Chun, YU, Chia Hua
• Application Number:
  US13/097,695
• Publication Number:
  US 20110310036A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display

Abstract

A pixel array includes a plurality of pixels, data lines, readout lines and gate lines, wherein a data line and a readout line are alternatively disposed between every two adjacent pixels; two pixels adjacent to each data line are coupled to the same data line but coupled to different gate lines; and at least a part of the readout lines are coupled to one of the two pixels adjacent thereto. The present invention further provides a touch panel including the above pixel array.

Claims

1. A pixel array of a touch panel, comprising:

a first pixel, a second pixel, a third pixel and a fourth pixel sequentially arranged along a horizontal direction;

a first data line extending along a vertical direction, disposed between and coupled to the first pixel and the second pixel;

a second data line extending along the vertical direction, disposed between and coupled to the third pixel and the fourth pixel;

a readout line extending along the vertical direction, disposed between the second pixel and the third pixel, and coupled to at least one of the second pixel and the third pixel, wherein no data line is disposed between the second pixel and the third pixel;

a first gate line coupled to the first pixel and the third pixel; and

a second gate line coupled to the second pixel and the fourth pixel.

2. The pixel array as claimed in claim 1, wherein the pixel to which the readout line coupled further comprises a sensing unit coupled to the readout line for outputting a touch control signal.

3. The pixel array as claimed in claim 2, wherein a distance between the readout line and the first data line and a distance between the readout line and the second data line are larger than a pixel electrode width and equal to a pixel width.

4. The pixel array as claimed in claim 2, wherein the sensing unit comprises a read transistor and a touch sensor, and the read transistor is coupled to the readout line and a corresponding gate line, and the touch sensor is coupled to the read transistor.

5. The pixel array as claimed in claim 2, wherein each pixel further comprises a pixel transistor coupled to a corresponding gate line, and in the pixel to which the readout line coupled the pixel transistor and the sensing unit are respectively coupled to different gate lines.

6. The pixel array as claimed in claim 1, wherein when one of the second pixel and the third pixel is a blue sub-pixel, the readout line is coupled to the blue sub-pixel;

while when one of the second pixel and the third pixel is a green sub-pixel, the readout line is not coupled to the green sub-pixel.

7. A pixel array of a touch panel, comprising:

a plurality of pixels arranged in a matrix;

a plurality of data lines disposed along a horizontal direction;

a plurality of readout lines disposed parallel to the data lines; and

a plurality of gate lines disposed perpendicular to the data lines;

wherein a data line and a readout line are alternatively disposed between every two adjacent pixels along the horizontal direction;

two pixels adjacent to each data line are coupled to the same data line but coupled to different gate lines; and

at least a part of the readout lines are coupled to one of the two pixels adjacent thereto.

8. The pixel array as claimed in claim 7, wherein the pixel adjacent to the readout line and coupled thereto further comprises a sensing unit coupled to the readout line for outputting a touch control signal.

9. The pixel array as claimed in claim 8, wherein the sensing unit is configured to sense a voltage variation, a current variation, a light intensity variation or a wave intensity variation.

10. The pixel array as claimed in claim 8, wherein the sensing unit comprises a read transistor and a touch sensor, and the read transistor is coupled to the readout line and a corresponding gate line, and the touch sensor is coupled to the read transistor.

11. The pixel array as claimed in claim 8, wherein each pixel further comprises a pixel transistor coupled to a corresponding gate line, and in the pixel to which the readout line coupled the pixel transistor and the sensing unit are respectively coupled to different gate lines.

12. The pixel array as claimed in claim 7, wherein when one of the two pixels adjacent to the readout line is a blue sub-pixel, the readout line is coupled to the blue sub-pixel;

and when one of the two pixels adjacent to the readout line is a green sub-pixel, the readout line is not coupled to the green sub-pixel.

13. The pixel array as claimed in claim 7, wherein all of the readout lines are coupled to one of the two pixels adjacent thereto.

14. A touch panel, comprising:

a plurality of pixels arranged in a matrix, wherein every two pixels in a row along a horizontal direction form a pixel group;

a plurality of gate lines, wherein each pixel is coupled to one of the gate lines;

a gate driver coupled to the gate lines;

a plurality of date lines respectively disposed between two pixels of the pixel group, wherein the two pixels of each pixel group are coupled to the same data line but coupled to different gate lines; and

a plurality of readout lines disposed between at least a part of two adjacent pixel groups, wherein a data line and a readout line are alternatively disposed between every two adjacent pixels along the horizontal direction, and at least a part of the readout lines being coupled to one of the two pixels adjacent thereto.

15. The touch panel as claimed in claim 14, wherein the readout lines are respectively disposed between all adjacent pixel groups.

16. The touch panel as claimed in claim 14, wherein the pixel adjacent to the readout line and coupled thereto further comprises a sensing unit coupled to the readout line for outputting a touch control signal.

17. The touch panel as claimed in claim 16, wherein the sensing unit is configured to sense a voltage variation, a current variation, a light intensity variation or a wave intensity variation.

18. The touch panel as claimed in claim 16, wherein the sensing unit comprises a read transistor and a touch sensor, and the read transistor is coupled to the readout line and a corresponding gate line, and the touch sensor is coupled to the read transistor.

19. The touch panel as claimed in claim 16, wherein each pixel further comprises a pixel transistor coupled to a corresponding gate line, and in the pixel to which the readout line coupled the pixel transistor and the sensing unit are respectively coupled to different gate lines.

20. The touch panel as claimed in claim 14, wherein when one of the two pixels adjacent to the readout line is a blue sub-pixel, the readout line is coupled to the blue sub-pixel;

and when one of the two pixels adjacent to the readout line is a green sub-pixel, the readout line is not coupled to the green sub-pixel.