# US 12,223,146 B2 · Display panel and display apparatus

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- Number: US 12,223,146 B2
- Document ID: US12223146B2
- Status: Granted
- Kind: B2
- Application number: 18/041,073
- Filed: 2022-03-28
- Published: 2024-08-08
- Granted: 2025-02-11
- Earliest claimed: 2022-03-28
- Assignees: Chengdu Boe Optoelectronics Technology Co., Ltd.; Boe Technology Group Co., Ltd.
- Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd.; BOE Technology Group Co., Ltd.
- Inventors: Yang Zeng; Tianci Chen; Shun Zhang; Chang Luo; Yuanqi Zhang; Yi Zhang; Youngyik Ko; Sanghun Kang
- Web page: https://patentgrep.com/patent/US12223146B2

## CPC

- G06F 3/044: by capacitive means
- G06F 3/0443: {using a single layer of sensing electrodes}
- G06F 3/0416: {Control or interface arrangements specially adapted for digitisers}
- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- 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}
- 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 display panel is provided. The display panel includes a touch control structure. The touch control structure includes a plurality of first mesh electrodes and a plurality of second mesh electrodes. A respective one of the plurality of first mesh electrodes includes a plurality of first mesh blocks consecutively electrically connected along a first direction. A respective one of the plurality of second mesh electrodes includes a plurality of second mesh blocks consecutively electrically connected along a second direction. Two adjacent first mesh blocks of the plurality of first mesh blocks are electrically connected to each other through a respective first conductive bridge. The respective first conductive bridge includes a plurality of first single mesh lines spaced apart from each other, and in a layer different from the plurality of first mesh blocks and the plurality of second mesh blocks.

## Claims

### Claim 1

A display panel, comprising a touch control structure;
wherein the touch control structure comprises a plurality of first mesh electrodes and a plurality of second mesh electrodes;
wherein a respective one of the plurality of first mesh electrodes comprises a plurality of first mesh blocks consecutively electrically connected along a first direction;
a respective one of the plurality of second mesh electrodes comprises a plurality of second mesh blocks consecutively electrically connected along a second direction;
two adjacent first mesh blocks of the plurality of first mesh blocks are electrically connected to each other through a respective first conductive bridge; and
the respective first conductive bridge comprises a plurality of first single mesh lines spaced apart from each other, and in a layer different from the plurality of first mesh blocks and the plurality of second mesh blocks;
wherein a respective first single mesh line of the plurality of first single mesh lines is a unitary structure; and
an entirety of the unitary structure crosses over only one second single mesh line of the respective one of the plurality of second mesh electrodes.

### Claim 2 (depends on 1)

The display panel of claim 1, wherein a total number of the plurality of first single mesh lines is four, each of which is a unitary structure.

### Claim 3 (depends on 1)

The display panel of claim 1, wherein two adjacent second mesh blocks of the plurality of second mesh blocks are electrically connected to each other through a respective second conductive bridge; and
the respective second conductive bridge comprises a plurality of second single mesh lines spaced apart from each other, and in a same layer as the plurality of first mesh blocks and the plurality of second mesh blocks.

### Claim 4 (depends on 3)

The display panel of claim 3, wherein a total number of the plurality of first single mesh lines is two.

### Claim 5 (depends on 3)

The display panel of claim 3, wherein an extension direction of at least a segment of a respective first single mesh line of the plurality of first single mesh lines is the same as an extension direction of at least a segment of a respective second single mesh line of the plurality of second single mesh lines.

### Claim 6 (depends on 1)

The display panel of claim 1, wherein the respective one of the plurality of first mesh electrodes further comprises a plurality of connecting mesh blocks in a same layer as the plurality of first mesh blocks and the plurality of second mesh blocks; and
the two adjacent first mesh blocks of the plurality of first mesh blocks are electrically connected to each other through the respective first conductive bridge and a respective connecting mesh block of the plurality of connecting mesh blocks.

### Claim 7 (depends on 6)

The display panel of claim 6, wherein the respective connecting mesh block is electrically connected to a first adjacent first mesh block of the two adjacent first mesh blocks through at least one first single mesh line of the plurality of first single mesh lines on a first side, and is electrically connected to a second adjacent first mesh block of the two adjacent first mesh blocks through at least one first single mesh line of the plurality of first single mesh lines on a second side.

### Claim 8 (depends on 7)

The display panel of claim 7, wherein the at least one first single mesh line on the first side is spaced apart from the at least one first single mesh line on the second side by at least three subpixel regions.

### Claim 9 (depends on 6)

The display panel of claim 6, wherein two adjacent second mesh blocks of the plurality of second mesh blocks and two second single mesh lines connecting the two adjacent second mesh blocks together surround the respective connecting mesh block.

### Claim 10 (depends on 9)

The display panel of claim 9, wherein the two second single mesh lines surrounding the respective connecting mesh block are spaced apart from each other by five subpixel regions.

### Claim 11 (depends on 6)

The display panel of claim 6, wherein the respective connecting mesh block has a pattern of mesh lines conforming to patterns of mesh lines of the plurality of first mesh blocks and the plurality of second mesh blocks.

### Claim 12 (depends on 6)

The display panel of claim 6, wherein the respective connecting mesh block comprises at least three consecutive mesh ring structures and a plurality of branches extending away from the three consecutive mesh ring structures.

### Claim 13 (depends on 1)

The display panel of claim 1, wherein a respective first single mesh line of the plurality of first single mesh lines is a curved line comprising a first segment and a second segment; and
the first segment and the second segment are along sides of no more than two subpixel regions.

### Claim 14 (depends on 1)

The display panel of claim 1, wherein an orthographic projection of mesh lines of the plurality of first mesh blocks, the plurality of second mesh blocks, a plurality of connecting mesh blocks, the plurality of first single mesh lines, and a plurality of second single mesh lines has an approximate repeating pattern.

### Claim 15 (depends on 14)

The display panel of claim 14, wherein a minimum repeating unit of the approximate repeating pattern encompasses four subpixel regions in a same pixel region.

### Claim 16 (depends on 14)

The display panel of claim 14, wherein a minimum repeating unit of the approximate repeating pattern has a hexagonal shape;
the hexagonal shape comprises three consecutive ring structures;
the hexagonal shape comprises two sides extending along the second direction, two sides extending along a third direction, and two sides extending along a fourth direction;
each of the two sides extending along the second direction is along only one side of a subpixel region;
each of the two sides extending along the third direction are along two sides respectively from two subpixel regions; and
each of the two sides extending along the fourth direction are along two sides respectively from two subpixel regions.

### Claim 17 (depends on 1)

A display apparatus, comprising the display panel of claim 1, and one or more integrated circuits connected to the display panel.

### Claim 18

A display panel, comprising a touch control structure;
wherein the touch control structure comprises a plurality of first mesh electrodes and a plurality of second mesh electrodes;
wherein a respective one of the plurality of first mesh electrodes comprises a plurality of first mesh blocks consecutively electrically connected along a first direction;
a respective one of the plurality of second mesh electrodes comprises a plurality of second mesh blocks consecutively electrically connected along a second direction;
two adjacent first mesh blocks of the plurality of first mesh blocks are electrically connected to each other through a respective first conductive bridge; and
the respective first conductive bridge comprises a plurality of first single mesh lines spaced apart from each other, and in a layer different from the plurality of first mesh blocks and the plurality of second mesh blocks;
wherein two adjacent second mesh blocks of the plurality of second mesh blocks are electrically connected to each other through a respective second conductive bridge; and
the respective second conductive bridge comprises a plurality of second single mesh lines spaced apart from each other, and in a same layer as the plurality of first mesh blocks and the plurality of second mesh blocks;
wherein only portions of the respective one of the plurality of second mesh electrodes that crosses over the respective one of the plurality of first mesh electrodes are the plurality of second single mesh lines; and
a respective second single mesh line of the plurality of second single mesh lines crosses over only two single mesh lines of the plurality of first single mesh lines.

### Claim 19

A display panel, comprising a touch control structure;
wherein the touch control structure comprises a plurality of first mesh electrodes and a plurality of second mesh electrodes;
wherein a respective one of the plurality of first mesh electrodes comprises a plurality of first mesh blocks consecutively electrically connected along a first direction;
a respective one of the plurality of second mesh electrodes comprises a plurality of second mesh blocks consecutively electrically connected along a second direction;
two adjacent first mesh blocks of the plurality of first mesh blocks are electrically connected to each other through a respective first conductive bridge; and
the respective first conductive bridge comprises a plurality of first single mesh lines spaced apart from each other, and in a layer different from the plurality of first mesh blocks and the plurality of second mesh blocks;
wherein two adjacent second mesh blocks of the plurality of second mesh blocks are electrically connected to each other through a respective second conductive bridge; and
the respective second conductive bridge comprises a plurality of second single mesh lines spaced apart from each other, and in a same layer as the plurality of first mesh blocks and the plurality of second mesh blocks;
wherein an extension direction of at least a segment of a respective first single mesh line of the plurality of first single mesh lines is the same as an extension direction of at least a segment of a respective second single mesh line of the plurality of second single mesh lines;
wherein an orthographic projection of the at least a segment of the respective first single mesh line on a base substrate substantially overlaps with an orthographic projection of the at least a segment of the respective second single mesh line on the base substrate.
