Array Substrate and Display Device

Patent metadata

Field	Value
Publication number	US-2022342499-A1
Application number	US-202117421737-A
Country	US
Kind code	A1
Filing date	Jan 5, 2021
Priority date	Feb 25, 2020
Publication date	Oct 27, 2022
Grant date	—

Abstract

The present disclosure discloses an array substrate and a display device. The array substrate includes a touch substrate, the touch substrate includes a plurality of touch electrodes and a plurality of touch electrode wires disposed in an array, each touch electrode includes a plurality of touch sensors disposed in an array, common electrodes of all pixel cells of the array substrate are reused as the touch sensors, and the array substrate includes data wires for providing display data to the pixel cells; the array substrate includes a base substrate and a thin film transistor which are stacked, the touch electrode wires and the data wires are provided on the same layer where a source and a drain of the thin film transistor are located, and the touch electrode wires are abreast provided on the two sides of each data wire.

First claim

What is claimed is:

1 . An array substrate, wherein the array substrate comprises a touch substrate, the touch substrate comprises a plurality of touch electrodes and a plurality of touch electrode wires disposed in an array, each touch electrode comprises a plurality of touch sensors disposed in an array, common electrodes of pixel cells of the array substrate are reused as the touch sensors, and the array substrate comprises a plurality of data wires for providing display data to the pixel cells;
the array substrate comprises a base substrate and a thin film transistor which are stacked, the touch electrode wires and the data wires are provided on the same layer where a source and a drain of the thin film transistor are located, and the touch electrode wires are abreast provided on two sides of each data wire.

2 . The array substrate according to claim 1 , wherein in one of the touch electrodes, adjacent common electrodes disposed horizontally are electrically connected to form a common electrode strip;
in one of the touch electrodes, the common electrode strip is electrically connected through at least one touch electrode wire, the at least one touch electrode wire is electrically connected to a touch driver such that each common electrode strip is capable of receiving a signal transmitted by the touch driver, and the touch driver provides common voltage or a touch drive signal to the touch electrode.

3 . The array substrate according to claim 2 , wherein in one of the touch electrodes, the common electrode strip is electrically connected through one touch electrode wire, and the one touch electrode wire is respectively electrically connected to the common electrodes adjacent to the touch electrode wire in the common electrode strip through a via.

4 . The array substrate according to claim 2 , wherein in one of the touch electrodes, the common electrode strip is electrically connected through two touch electrode wires, one touch electrode wire is electrically connected to the common electrodes in even rows adjacent to the touch electrode wire through a via, and the other touch electrode wire is electrically connected to the common electrodes in odd rows adjacent to the touch electrode wire through a via.

5 . The array substrate according to claim 4 , wherein the two touch electrode wires are provided on two sides of a same data wire, and before the two touch electrode wires are connected to the touch driver, the two touch electrode wires are connected to form a lead wire which is connected to the touch driver.

6 . The array substrate according to claim 1 , wherein the touch electrode wires and the data wires are made of a same metal material as the source and the drain.

7 . The array substrate according to claim 5 , wherein the width of the data wires is greater than the width of the touch electrode wires.

8 . A display device, comprising:
the array substrate according to claim 1 ; and a color film substrate comprising color-resistant sheets disposed in an array and black matrixes located between adjacent two color-resistant sheets.

9 . The display device according to claim 8 , wherein an orthographic projection of the black matrixes on the base substrate covers an orthographic projection of the data wires and the touch electrode wires on two sides of the data wires on the base substrate.

10 . The display device according to claim 8 , wherein an orthographic projection of the black matrixes on the base substrate covers an orthographic projection of the data wires and gaps on two sides of the data wires on the base substrate, and the gaps are located between the data wires and the touch electrode wires adjacent to the data wires.

11 . The display device according to claim 8 , wherein the touch driver comprises a first touch driver and a second touch driver located at two opposite ends of the array substrate, and two ends of one same touch electrode wire are respectively electrically connected to the first touch driver and the second touch driver.

Assignees

• Wuhan Boe Optoelectronics Technology Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Hu Fang
• Zhu Ning
• Gao Yujie
• Jiang Peng

Classifications

• G06F3/0446

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• G06F3/0443

  using a single layer of sensing electrodes · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F3/04164 Primary

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

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title