Array substrate, touch display panel, and touch display apparatus

Patent metadata

Field	Value
Publication number	US-11480823-B2
Application number	US-201916975445-A
Country	US
Kind code	B2
Filing date	Dec 13, 2019
Priority date	Dec 26, 2018
Publication date	Oct 25, 2022
Grant date	Oct 25, 2022

Abstract

An array substrate has a plurality of sub-pixel regions, and each sub-pixel region includes an opening region and a pixel defining region surrounding the opening region. The array substrate includes a base and a plurality of touch signal lines disposed on the base. An orthographic projection of at least one touch signal line on the base passes through, along an extending direction thereof, at least one opening region.

First claim

What is claimed is:

1. An array substrate having a plurality of sub-pixel regions, each sub-pixel region including an opening region and a pixel defining region surrounding the opening region, comprising:
a base;
a plurality of touch signal lines disposed on the base,
wherein an orthographic projection of each touch signal line on the base passes through, along an extending direction thereof, each opening region of a column of sub-pixels in which the touch control signal line is located, and
each touch signal line includes a first portion and a second portion that are connected to each other; and

a common electrode disposed above the base,
wherein the common electrode includes a plurality of sub-common electrodes that are insulated from each other, each sub-common electrode is connected to at least one touch signal line, and each sub-common electrode includes at least one second through hole,
an orthographic projection of the first portion of each touch signal line on the base is located within an orthographic projection of at least one second through hole on the base, and
the at least one second through hole penetrates each sub-common electrode along a thickness direction of the base.

2. The array substrate according to claim 1 , further comprising:
a plurality of pixel electrodes disposed above the base, wherein each pixel electrode is located in an opening region; and
the plurality of pixel electrodes are located on a side of the common electrode facing the base, and the plurality of touch signal lines are located on a side of the plurality of pixel electrodes facing away from the common electrode.

3. The array substrate according to claim 2 , wherein
an orthographic projection of the first portion on the base is located within an orthographic projection of at least one pixel electrode on the base; and
an orthographic projection of the second portion on the base is located within at least one pixel defining region.

4. The array substrate according to claim 3 , wherein each pixel electrode includes at least one first through hole; and
the orthographic projection of the first portion on the base is further located within an orthographic projection of at least one first through hole on the base.

5. The array substrate according to claim 4 , wherein
the orthographic projection of the at least one first through hole on the base is strip-shaped;
or, the orthographic projection of the at least one second through hole on the base is strip-shaped;
or, the orthographic projection of the at least one first through hole and the orthographic projection of the at least one second through hole on the base are strip-shaped.

6. The array substrate according to claim 5 , wherein in the at least one first through hole, a width of each first through hole in a first direction is less than a width of a second through hole directly opposite thereto in the first direction, the first direction being perpendicular to the extending direction of the at least one touch signal line.

7. The array substrate according to claim 2 , wherein
each pixel electrode includes at least one first through hole;
an orthographic projection of the second portion on the base is located within at least one pixel defining region; and
an orthographic projection of the first portion on the base is located within an orthographic projection of at least one first through hole on the base.

8. The array substrate according to claim 1 , further comprising:
a plurality of data lines disposed on the base, wherein
the extending direction of the at least one touch signal line is parallel with extending directions of the plurality of data lines, and
in the at least one touch signal line, each touch signal line is located between two adjacent data lines, and distances between each touch signal line and two data lines adjacent thereto are equal.

9. The array substrate according to claim 1 , further comprising:
a plurality of gate lines and a plurality of data lines that are disposed above the base, extending directions of the plurality of gate lines being parallel with a first direction, and extending directions of the plurality of data lines being parallel with a second direction; wherein
the first direction and the second direction intersect; the plurality of data lines and the plurality of gate lines define the plurality of sub-pixel regions; and extending directions of the plurality of touch signal lines are parallel with the second direction.

10. The array substrate according to claim 9 , wherein the plurality of touch signal lines and the plurality of data lines are arranged in a same layer.

11. The array substrate according to claim 9 , wherein a number of the plurality of touch signal lines is same as a number of sub-pixel regions arranged in a same line in the first direction.

12. The array substrate according to claim 1 , wherein a width of each touch signal line is within a range from 1.5 μm to 4 μm, inclusive.

13. The array substrate according to claim 1 , wherein among the plurality of touch signal lines, a distance between every two adjacent touch signal lines is equal.

14. A touch display panel, comprising the array substrate according to claim 1 .

15. A touch display apparatus, comprising:
a controller and the touch display panel according to claim 14 , wherein
the plurality of touch signal lines are all electrically connected to the controller, and the controller is configured to implement touch control according to signal changes on the plurality of touch signal lines.

Assignees

• Hefei Boe Optoelectronics Tech
• Boe Technology Group Co Ltd
• Beijing Boe Technology Dev Co Ltd

Inventors

• Chen Junsheng
• Wang Hui
• Shao Xianjie

Classifications

• G06F3/04164

  Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads · CPC title

• G02F1/13338 Primary

  Input devices, e.g. touch panels · CPC title

• G06F3/0443

  using a single layer of sensing electrodes · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title