# US 11,307,684 B2 · Touch array substrate, display panel and display device

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- Number: US 11,307,684 B2
- Document ID: US11307684B2
- Status: Granted
- Kind: B2
- Application number: 16/333,005
- Filed: 2018-09-05
- Published: 2021-10-28
- Granted: 2022-04-19
- Earliest claimed: 2017-10-11
- Assignees: Beijing Boe Optoelectronics Technology Co., Ltd.; Boe Technology Group Co., Ltd.
- Applicants: Beijing Boe Optoelectronics Technology Co., Ltd.; Boe Technology Group Co., Ltd.
- Inventors: Ruichen Zhang; Kaixuan Wang; Xiaoqing Peng; Dong Liang; Feifei Wang; Wenjun Xiao; Xingyou Luo
- Web page: https://patentgrep.com/patent/US11307684B2

## CPC

- G06F 3/0412: {Digitisers structurally integrated in a display}
- G02F 1/13338: {Input devices, e.g. touch panels}
- G02F 1/134318: {having a patterned common electrode}
- G02F 1/134345: {Subdivided pixels, e.g. for grey scale or redundancy}
- G06F 3/0443: {using a single layer of sensing electrodes}
- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- G06F 3/0448: {Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality}
- G02F 1/134363: {for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]}
- G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

A touch array substrate, a display panel and a display device are provided. The touch array substrate includes a plurality of first electrodes disposed in a row direction and a column direction to form a plurality of electrode rows and a plurality of electrode columns. An edge of the plurality of first electrodes in the column direction includes a convex shape and a concave shape, the convex shape of an edge of one of two adjacent ones of the plurality of electrode columns extends into the concave shape of an edge of the other of the two adjacent ones of the plurality of electrode columns. The touch array substrate can avoid deficiencies such as a vertical line and the like in a macroscopic manner.

## Claims

### Claim 1

A touch array substrate, comprising:
a plurality of first electrodes, disposed in a row direction and a column direction to form a plurality of electrode rows and a plurality of electrode columns; and
a plurality of sub pixels, disposed in the row direction and the column direction to form a plurality of pixel rows and a plurality of pixel columns;
wherein an edge of the plurality of first electrodes in the column direction comprises a convex shape and a concave shape, the convex shape of an edge of one of two adjacent ones of the plurality of electrode columns extends into the concave shape of an edge of the other of the two adjacent ones of the plurality of electrode columns,
the plurality of sub pixels comprise a plurality of gap sub pixels, each of the plurality of gap sub pixels is partially overlapped with each of the two adjacent ones of the plurality of electrode columns, and the gap sub pixels corresponding to the two adjacent ones of the plurality of electrode columns are located in different pixel columns.

### Claim 2 (depends on 1)

The touch array substrate according to claim 1, wherein each of the plurality of first electrodes is overlapped with multiple gap sub pixels.

### Claim 3 (depends on 1)

The touch array substrate according to claim 1, wherein two edges opposite to each other and respectively located at two adjacent ones of the plurality of first electrodes in the row direction are overlapped with gap sub pixels belonging to a same pixel column.

### Claim 4 (depends on 1)

The touch array substrate according to claim 1, wherein each of the plurality of first electrodes has a shape of a rectangle, the first electrodes in each of the plurality of electrode columns are dislocated in the row direction to form the convex shape and the concave shape.

### Claim 5 (depends on 1)

The touch array substrate according to claim 1, wherein in two edges opposite to each other and respectively located at two adjacent ones of the plurality of first electrodes in the row direction, each of the two edges comprises:
at least one concave portion, concaved in the row direction; and
at least one convex portion, protruded in the row direction,
wherein the concave portion and the convex portion are alternately disposed, the concave portion and the convex portion of each of the two edges are respectively overlapped with the gap sub pixels belonging to different sub pixel columns.

### Claim 6 (depends on 5)

The touch array substrate according to claim 5, wherein the convex portion comprises a shape of a rectangle.

### Claim 7 (depends on 1)

The touch array substrate according to claim 1, further comprising:
a plurality of wires, extending in the column direction and electrically connected with the plurality of first electrodes respectively,
wherein each of the plurality of wires passes through effective display regions of the sub pixels disposed in the column direction, each wire passing through the effective display regions of the gap sub pixels disposed in the column direction comprises a plurality of first portions and a plurality of second portions, the plurality of first portions are located between two adjacent ones of the plurality of first electrodes in the row direction, and the plurality of second portions are partially overlapped with at least one of the plurality of first electrodes.

### Claim 8 (depends on 7)

The touch array substrate according to claim 7, wherein the plurality of first portions and the plurality of second portions are alternately disposed.

### Claim 9 (depends on 7)

The touch array substrate according to claim 7, wherein a length of each of the plurality of first portions is equal to a length of each of the plurality of first electrodes in the column direction.

### Claim 10 (depends on 1)

The touch array substrate according to claim 1, wherein each of the plurality of first electrodes is used as a common electrode and a touch electrode.

### Claim 11 (depends on 7)

The touch array substrate according to claim 7, wherein each of the plurality of wires is used as a common electrode line and a touch electrode line.

### Claim 12 (depends on 1)

The touch array substrate according to claim 1, wherein each of the plurality of sub pixels comprises:
a second electrode, configured to form an electric field with a corresponding one of the plurality of first electrodes.

### Claim 13 (depends on 7)

The touch array substrate according to claim 7, wherein the plurality of wires and the plurality of first electrodes are respectively electrically connected through via holes.

### Claim 14 (depends on 1)

The touch array substrate according to claim 1, wherein each of the plurality of first electrodes correspond to an integer number of sub pixels in the column direction.

### Claim 15 (depends on 1)

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

### Claim 16 (depends on 15)

The display panel according to claim 15, further comprising:
an opposing substrate, cell-assembled with the touch array substrate; and
a liquid crystal layer, between the touch array substrate and the opposing substrate.

### Claim 17 (depends on 15)

A display device, comprising a display panel according to claim 15.