Touch-control panel and preparation method therefor, and display apparatus

Patent metadata

Field	Value
Publication number	US-11861124-B2
Application number	US-202117760771-A
Country	US
Kind code	B2
Filing date	May 21, 2021
Priority date	May 29, 2020
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

Disclosed are a touch-control panel and a preparation method therefor, and a display apparatus. The touch-control panel comprises: a substrate, a plurality of first touch-control electrodes which are arranged on the substrate at intervals and extend in a first direction, and a plurality of second touch-control electrodes which are arranged on the substrate at intervals and extend in the first direction, wherein the first touch-control electrodes and the second touch-control electrodes are insulated from each other; the first touch-control electrodes and the second touch-control electrodes cross to form a first interdigital structure; and first bending parts extending towards the outer sides of the first touch-control electrodes are formed on side parts of the first touch-control electrodes, or, second bending parts extending towards the outer sides of the second touch-control electrodes are formed on side parts of the second touch-control electrodes.

First claim

The invention claimed is:

1. A touch panel, comprising a base substrate, a plurality of first touch electrodes which are provided on the base substrate and extend along a first direction, and a plurality of second touch electrodes which are provided on the base substrate and extend along the first direction, wherein the plurality of first touch electrodes and the plurality of second touch electrodes are provided at intervals along a second direction and insulated from each other, the plurality of first touch electrodes and the plurality of second touch electrodes cross each other to form a first interdigital structure, wherein a first bending part extending toward outer side is formed on both sides of each of the plurality of first touch electrodes, and a second bending part extending toward outer side is formed on both sides of each of the plurality of second touch electrodes, the first bending part close to a second touch electrode and the second bending part close to a first touch electrode cross each other to form a second interdigital structure, wherein the second direction is perpendicular to the first direction.

2. The touch panel according to claim 1 , further comprising a plurality of first connection electrodes which are provided on the base substrate and extend along the second direction, wherein the plurality of first connection electrodes are provided along the first direction at intervals and electrically communicated with the plurality of first touch electrodes respectively, the plurality of first connection electrodes and the plurality of second touch electrodes are insulated from each other.

3. The touch panel according to claim 2 , wherein two ends of each of two adjacent first connection electrodes are electrically communicated with two of the plurality of first touch electrodes respectively, forming a loop structure.

4. The touch panel according to claim 1 , further comprising a plurality of third connection electrodes which are provided on the base substrate and extend along the second direction, wherein the plurality of third connection electrodes are provided at intervals along the first direction, and electrically communicated with the plurality of second touch electrodes respectively, wherein the plurality of third connection electrode and the plurality of first touch electrodes are insulated from each other.

5. The touch panel according to claim 2 , wherein second touch electrodes located at both sides of a first connection electrode are electrically communicated through a bridging structure.

6. The touch panel according to claim 5 , wherein at least two bridging structures are provided on the touch panel.

7. The touch panel according to claim 1 , wherein both the first touch electrodes and the second touch electrodes are in a grid structure.

8. The touch panel according to claim 7 , further comprising a plurality of sub-pixels provided on the base substrate, wherein the grid structure is provided on the sub-pixels, in the grid structure, each grid corresponds to one or one group of sub-pixels, and a projection of the one or the group of sub-pixels on a plane where the grid is located falls within a corresponding grid.

9. A display apparatus, comprising the touch panel according to claim 1 .

10. A method for preparing a touch panel, comprising:
forming, on a base substrate, a plurality of first touch electrodes extending along a first direction and a plurality of second touch electrodes extending along the first direction;
wherein the plurality of first touch electrodes and the plurality of second touch electrodes are provided at intervals along a second direction and insulated from each other, and the plurality of first touch electrodes and the plurality of second touch electrodes cross each other to form a first interdigital structure; wherein a first bending part extending toward outer side is formed on both sides of each of the plurality of first touch electrodes, and a second bending part extending toward outer side is formed on both sides of each of the plurality of second touch electrodes, the first bending part close to a second touch electrode and the second bending part close to a first touch electrode cross each other to form a second interdigital structure, wherein the second direction is perpendicular to the first direction.

11. The touch panel according to claim 1 , wherein the first bending part is a convex part on both sides of the first touch electrode and the second bending part is a convex part on both sides of the second touch electrode.

12. The touch panel according to claim 1 , wherein the first bending part extends along with the first touch electrode in the first direction, and the second bending part extends along with the second touch electrode in the first direction.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Xiang Dalin
• Bo Zewen

Classifications

• G06F3/0446 Primary

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

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• H10K59/40

  OLEDs integrated with touch screens · CPC title

• H10K77/111

  Flexible substrates · CPC title

• G06F2203/04102

  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 · CPC title