Touch control structure and display apparatus

Patent metadata

Field	Value
Publication number	US-12019834-B2
Application number	US-202117761186-A
Country	US
Kind code	B2
Filing date	May 26, 2021
Priority date	May 26, 2021
Publication date	Jun 25, 2024
Grant date	Jun 25, 2024

Abstract

A touch control structure is provided. The touch control structure includes a plurality of first mesh electrodes respectively in a plurality of rows and a plurality of second mesh electrodes respectively in a plurality of columns. A respective one of the plurality of first mesh electrodes includes a plurality of first mesh blocks consecutively connected in a respective row. The plurality of first mesh blocks includes a first respective first mesh block in a space formed by a first set of four adjacent second mesh blocks. The first respective first mesh block is spaced apart and insulated from the four adjacent second mesh blocks in the first set. The four adjacent second mesh blocks in the first set is electrically connected to each other.

First claim

What is claimed is:

1. A touch control structure, comprising a plurality of first mesh electrodes respectively in a plurality of rows and a plurality of second mesh electrodes respectively in a plurality of columns;
wherein a respective one of the plurality of first mesh electrodes comprises a plurality of first mesh blocks consecutively connected in a respective row; and
the plurality of first mesh blocks comprise a first respective first mesh block in a space formed by a first set of four adjacent second mesh blocks, the first respective first mesh block being spaced apart and insulated from the four adjacent second mesh blocks in the first set, the four adjacent second mesh blocks in the first set being electrically connected to each other;
wherein the plurality of first mesh blocks further comprise a second respective first mesh block in a space formed by a second set of four adjacent second mesh blocks, the second respective first mesh block spaced apart and insulated from the four adjacent second mesh blocks in the second set;
the first set and the second set have two second mesh blocks in common;
the first respective first mesh block and the second respective first mesh block are connected to each other and directly adjacent to each other along the respective row;
second mesh blocks in a same row in the second set are insulated from each other; and
second mesh blocks in a same column in the second set are electrically connected to each other through a conductive bridge;
wherein the four adjacent second mesh blocks in the first set comprise a first respective second mesh block, a second respective second mesh block, a third respective second mesh block, and a fourth respective second mesh block;
the four adjacent second mesh blocks in the second set comprise the first respective second mesh block, the second respective second mesh block, a fifth respective second mesh block, and a sixth respective second mesh block;
the third respective second mesh block, the first respective second mesh block, and the fifth respective second mesh block are consecutively in a first row, the first respective second mesh block and the third respective second mesh block are connected to each other along the row direction, the first respective second mesh block and the fifth respective second mesh block are spaced apart and insulated from each other;
the fourth respective second mesh block, the second respective second mesh block, and the sixth respective second mesh block are consecutively in a second row, the second respective second mesh block and the fourth respective second mesh block are connected to each other along the row direction, the second respective second mesh block and the sixth respective second mesh block are spaced apart and insulated from each other;
the third respective second mesh block and the fourth respective second mesh block are in a first column and are electrically connected to each other through a first respective conductive bridge; and
the first respective second mesh block and the second respective second mesh block are in a second column and are electrically connected to each other through a second respective conductive bridge;
the fifth respective second mesh block and the sixth respective second mesh block are in a third column and are electrically connected to each other through a third respective conductive bridge; and
the first column, the second column, and the third column are consecutively arranged.

2. The touch control structure of claim 1 , wherein the four adjacent second mesh blocks in the first set comprise a first respective second mesh block, a second respective second mesh block, a third respective second mesh block, and a fourth respective second mesh block;
the first respective second mesh block and the third respective second mesh block are in a first row and are connected to each other along a row direction;
the second respective second mesh block and the fourth respective second mesh block are in a second row and are connected to each other along the row direction;
the third respective second mesh block and the fourth respective second mesh block are in a first column and are electrically connected to each other through a first respective conductive bridge; and
the first respective second mesh block and the second respective second mesh block are in a second column and are electrically connected to each other through a second respective conductive bridge.

3. The touch control structure of claim 1 , wherein a respective one of the plurality of second mesh electrodes comprises a plurality of second mesh blocks consecutively electrically connected in a respective column;
the plurality of columns comprise a first column, a second column, and a third column;
the first column, the second column, and the third column are sequentially three consecutive columns;
a second mesh block in the first column, a second mesh block in the second column, and a second mesh block in the third column are along a row direction; and
the second mesh block in the second column is connected to the second mesh block in first column, and is spaced apart and insulated from the second mesh block in the third column.

4. The touch control structure of claim 3 , wherein the plurality of columns further comprise a fourth column and a fifth column;
the fifth column, the first column, the second column, the third column, and the fourth column are sequentially five consecutive columns;
the second mesh block in the third column is connected to a second mesh block in the fourth column;
the second mesh block in the first column is spaced apart and insulated from a second mesh block in the fifth column; and
the second mesh block in the fifth column, the second mesh block in the first column, the second mesh block in the second column, the second mesh block in the third column, and the second mesh block in the fourth column are along the row direction.

5. The touch control structure of claim 1 , wherein the plurality of second mesh electrodes comprise a plurality of groups;
a respective group of the plurality of groups comprises two second mesh electrodes respectively in two adjacent columns;
second mesh blocks respectively in the two adjacent columns and in a same row are connected to each other; and
adjacent second mesh blocks respectively in different groups and in a same row are spaced apart and insulated from each other.

6. The touch control structure of claim 5 , wherein, in a space between the two adjacent columns of the two second mesh electrodes in a same group of the plurality of groups, first mesh blocks respectively from the plurality of rows of first mesh electrodes form an intra-group column of first mesh blocks, first mesh blocks in the intra-group column are insulated from each other.

7. The touch control structure of claim 5 , wherein, in a space between two adjacent groups of the plurality of groups, first mesh blocks respectively from the plurality of rows of first mesh electrodes form an inter-group column of first mesh blocks, first mesh blocks in the inter-group column are insulated from each other.

8. The touch control structure of claim 1 , wherein a respective one of the plurality of second mesh electrodes comprises a plurality of second mesh blocks and a plurality of conductive bridges in a respective column, the plurality of second mesh blocks being consecutively electrically connected respectively through the plurality of conductive bridges;
the touch control structure further comprises a touch insulating layer;
the plurality of first mesh blocks and the plurality of second mesh blocks are on a side of the touch insulating layer away from the plurality of conductive bridges; and
a respective conduct

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd

Inventors

• Wang Lingran
• Wen Ping

Classifications

• G06F3/0448

  Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality · CPC title

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G06F2203/04112

  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 · CPC title

• G06F2203/04111

  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 · CPC title

• G06F3/0446 Primary

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