Touch display device

Patent metadata

Field	Value
Publication number	US-10761359-B2
Application number	US-201816018090-A
Country	US
Kind code	B2
Filing date	Jun 26, 2018
Priority date	Jun 5, 2015
Publication date	Sep 1, 2020
Grant date	Sep 1, 2020

Abstract

A touch display device including a first substrate, a second substrate, a display medium, and a pixel array structure is provided. The pixel array structure includes a scan line, a data line, an active device, pixel electrodes, a signal electrode layer and a signal transmission layer. The scan line intersects the data line. The active device is connected to the scan line and the data line. The pixel electrodes are arranged in an array. The signal electrode layer includes signal electrodes. The signal transmission layer includes a signal line disposed between two adjacent columns of the pixel electrodes and electrically connected to one of the signal electrodes. The data line includes at least a portion located outside of the signal line.

First claim

What is claimed is:

1. A touch display device, comprising:
a first substrate;
a display medium, located on the first substrate; and
a pixel array structure, located between the first substrate and the display medium, wherein the pixel array structure comprises:
a scan line;
an another scan line, parallel to the scan line;
a data line, intersecting the scan line and the another scan line, and the data line comprising a first portion, a first turning portion and an another first portion, wherein the first turning portion is connected between the first portion and the another first portion;
an active device, connected with the scan line and the data line;
an another active device, connected with the another scan line and the data line;
a pixel electrode electrically connected with the active device, wherein at least a portion of the pixel electrode is adjacent to and between the scan line and the another scan line; and
a signal line comprising a second portion, a second turning portion and an another second portion, wherein the second turning portion is connected between the second portion and the another second portion,
wherein the first portion and the second portion are disposed between the active device and the another active device.

2. The touch display device according to claim 1 , wherein at least a part of the signal line is located outside the data line.

3. The touch display device according to claim 1 , wherein an overlapping area of the data line and the signal line is less than or equal to 50% of an overall area of the data line.

4. The touch display device according to claim 1 , wherein
the first turning portion intersects the second turning portion, and the another first portion is located on an extension line of the second portion.

5. The touch display device according to claim 4 , wherein a width of the second turning portion is different from a width of the second portion in a line-width direction.

6. The touch display device according to claim 5 , wherein the width of the second turning portion is greater than the width of the second portion in the line-width direction.

7. The touch display device according to claim 1 , wherein
an extension direction of the second turning portion is different from an extension direction of the second portion and an extension direction of the another second portion.

8. The touch display device according to claim 7 , wherein a width of the second turning portion is different from a width of the second portion in a line-width direction.

9. The touch display device according to claim 8 , wherein the width of the second turning portion is greater than the width of the second portion in the line-width direction.

10. The touch display device according to claim 1 , wherein the display medium is liquid crystal.

11. A touch display device, comprising:
a first substrate;
a display medium, located on the first substrate; and
a pixel array structure, located between the first substrate and the display medium, wherein the pixel array structure comprises:
a data line;
a pixel electrode, electrically connected to the data line;
a signal electrode, wherein at least a part of the signal electrode overlaps the pixel electrode; and
a signal transmission layer, comprising a signal line and a compensation signal line, wherein a line length of the compensation signal line is less than a line length of the data line,
wherein the signal electrode is electrically connected with the signal line through a contact window.

12. The touch display device according to claim 11 , wherein the compensation signal line is located in an orthogonal projection of the signal electrode.

13. The touch display device according to claim 11 wherein a projection of the contact window on the first substrate is overlapping with the signal electrode and the signal line.

14. The touch display device according to claim 11 , wherein a common potential is input into the signal electrode.

15. The touch display device according to claim 11 , further comprising:
a touch sensing circuit, connected with the signal electrode.

16. The touch display device according to claim 11 , further comprising:
an insulation layer, disposed between the data line and the signal transmission layer.

17. The touch display device according to claim 11 , wherein the display medium is liquid crystal.

Assignees

• Innolux Corp

Inventors

• Chen Hung-Kun
• Chou Hsieh-Li
• Sung Li-Wei
• Liu Tung-Kai
• Tsai Chia-Hao
• Chang Chih-Hao
• Chen Bo-Feng
• Kao Yu-Chien

Classifications

• G06F3/0443

  using a single layer of sensing electrodes · CPC title

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G02F1/133345

  Insulating layers (G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence) · CPC title

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title

• G02F1/134309

  characterised by their geometrical arrangement · CPC title