# US 2021/0240326 A1 · Touch screen, touch display screen and display device

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- Number: US 2021/0240326 A1
- Document ID: US20210240326A1
- Status: Published application
- Kind: A1
- Application number: 16/650,530
- Filed: 2019-03-29
- Published: 2021-08-05
- Earliest claimed: 2019-03-29
- Assignees: Mianyang Boe Optoelectronics Technology Co., Ltd.; Boe Technology Group Co., Ltd.
- Applicants: Mianyang Boe Optoelectronics Technology Co., Ltd.; Boe Technology Group Co., Ltd.
- Inventors: Shihpo CHOU; Jing ZHANG
- Web page: https://patentgrep.com/patent/US20210240326A1

## CPC

- G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads}
- G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- G06F 3/0443: {using a single layer of sensing electrodes}
- G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer}
- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- G06F 3/047: using sets of wires, e.g. crossed wires
- G06F 2203/04102: Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
- G06F 2203/04111: Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
- G06F 2203/04112: Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A touch screen, a touch display screen and a display device are provided. The touch screen includes a first region and a second region. The first region can be bent, and the first region is in a flat state when the touch screen is in a flat state and is in a curved state when the touch screen is in a folded state. The first region includes a plurality of first touch patterns arranged in an array in a first direction and a second direction when the touch screen is in the flat state. The plurality of first touch patterns are in the same layer and adjacent first touch patterns are insulated from each other, the first direction is intersected with the second direction, and the second region is connected with the first region. The first region of the touch screen is not limited by the bending direction, has bending endurance and strong touch reliability.

## Claims

### Claim 1

A touch screen, comprising:
a first region, being bendable and comprising a plurality of first touch patterns arranged in an array in a first direction and a second direction, wherein the plurality of first touch patterns are located in a same layer, adjacent first touch patterns are insulated from each other, and the first direction is intersected with the second direction; and
a second region, connected with the first region.

### Claim 2 (depends on 1)

The touch screen according to claim 1, wherein the first touch patterns of a first column comprises a plurality of first electrodes insulated from each other, and
the first touch patterns of a second column comprises a plurality of second electrodes located in odd rows and a plurality of third electrodes located in even rows, the second column is adjacent to the first column, the plurality of second electrodes are electrically connected with each other, and the plurality of third electrodes are electrically connected with each other, and the plurality of second electrodes are insulated from the plurality of third electrodes.

### Claim 3 (depends on 2)

The touch screen according to claim 2, further comprising a plurality of first wires, a plurality of second wires and a plurality of third wires, wherein each of the plurality of first electrodes is connected with one of the plurality of first wires, and adjacent second electrodes of the first touch patterns of the second column are connected with each other by one of the plurality of second wires, and adjacent third electrodes of the first touch patterns of the second column are connected with each other by one of the plurality of third wires, and the second wire and the third wires are arranged at both sides of the first touch patterns of the second column, respectively.

### Claim 4 (depends on 3)

The touch screen according to claim 3, wherein an extending direction of the first wire, an extending direction of the second wire and an extending direction of the third wire are the same as an extending direction of a bending axis of the first region.

### Claim 5 (depends on 1)

The touch screen according to claim 1, further comprising a plurality of conductive lines, wherein the plurality of first touch patterns are insulated from each other, and each of the plurality of first touch patterns is connected with one of the plurality of conductive lines, and an extending direction of the conductive line is parallel with an extending direction of a bending axis of the first region.

### Claim 6 (depends on 1)

The touch screen according to claim 1, wherein the second region comprises at least one sub-region, and the sub-region comprises a plurality of first touch groups and a plurality of second touch groups;
the plurality of first touch groups are insulated from and are intersected with the plurality of second touch groups;
each of the plurality of first touch groups comprises a plurality of second touch patterns, and each of the plurality of second touch groups comprises a plurality of third touch patterns.

### Claim 7 (depends on 6)

The touch screen according to claim 6, wherein the first touch pattern is a pattern obtained by rotating at least one selected from the group consisting of the second touch pattern and the third touch pattern by a first angle.

### Claim 8 (depends on 7)

The touch screen according to claim 7, wherein the first angle comprises 45 degrees.

### Claim 9 (depends on 6)

The touch screen according to claim 6, wherein the plurality of second touch patterns and the plurality of third touch patterns are located in a same layer, and the plurality of second touch patterns are directly connected, and adjacent third touch patterns are connected by a bridge line.

### Claim 10 (depends on 9)

The touch screen according to claim 9, further comprising a base substrate, wherein the bridge line and the plurality of second touch patterns are located on the base substrate, and an orthographic projection of the bridge line on the base substrate is partially overlapped with an orthographic projection of one of the plurality of second touch patterns on the base substrate.

### Claim 11 (depends on 10)

The touch screen according to claim 10, wherein the bridge line and the plurality of first touch patterns are located in a same layer.

### Claim 12 (depends on 9)

The touch screen according to claim 9, wherein the plurality of first touch patterns are located in the same layer as the plurality of second touch patterns and the plurality of third touch patterns, or the plurality of first touch patterns are located in the same layer as the bridge line.

### Claim 13 (depends on 6)

The touch screen according to claim 6, wherein at least one selected from the group consisting of each of the plurality of first touch patterns, each of the plurality of second touch patterns and each of the third touch patterns has a mesh structure.

### Claim 14 (depends on 8)

The touch screen according to claim 8, wherein the at least one sub-region comprises a first sub-region and a second sub-region, and the first region is located between the first sub-region and the second sub-region.

### Claim 15 (depends on 14)

The touch screen according to claim 14, wherein the plurality of first touch groups and the plurality of second touch groups that are located in the first sub-region are insulated from the plurality of first touch groups and the plurality of second touch groups that are located in the second sub-region.

### Claim 16 (depends on 14)

The touch screen according to claim 14, further comprising a plurality of first signal lines, a plurality of second signal lines, a plurality of third signal lines, a plurality of fourth signal lines, a first touch integrated circuit (IC) and a second touch IC, wherein the plurality of first touch groups located in the first sub-region are connected with the first touch IC by the plurality of first signal lines, respectively; the plurality of second touch groups located in the first sub-region are connected with the first touch IC by the plurality of second signal lines, respectively; the plurality of first touch groups located in the second sub-region are connected with the second touch IC by the plurality of third signal lines, respectively; and the plurality of second touch groups located in the second sub-region are connected with the second touch IC by the plurality of fourth signal lines, respectively.

### Claim 17 (depends on 16)

The touch screen according to claim 16, further comprising a plurality of fifth signal lines, wherein the plurality of first touch patterns are connected with the second touch IC by the plurality of fifth signal lines, respectively.

### Claim 18 (depends on 1)

The touch screen according to claim 1, wherein the first direction is an extending direction of a bending axis of a first region, and the second direction is a direction perpendicular to the bending axis in a case where the touch screen is in a flat state.

### Claim 19 (depends on 1)

A touch display screen, comprising the touch screen according to claim 1, wherein the first region further comprises a plurality of first display pixels and a non-display region located between adjacent first display pixels, and each of the plurality of first touch patterns comprises a plurality of first conductive lines connected with each other, an orthographic projection of each of the plurality of first conductive lines on a base substrate is located in the non-display region.

### Claim 20 (depends on 1)

A display device comprising the touch screen according to claim 1.

### Claim 21

(canceled)