Touch panel and display apparatus

Patent metadata

Field	Value
Publication number	US-12254153-B2
Application number	US-202318453445-A
Country	US
Kind code	B2
Filing date	Aug 22, 2023
Priority date	Apr 3, 2023
Publication date	Mar 18, 2025
Grant date	Mar 18, 2025

Abstract

A touch panel and a display apparatus are provided. The touch panel includes a first component region and a touch region, first-type touch electrode blocks, and m2 first connecting lines. First and second touch regions are respectively located at two sides of the first component region along a first direction. The first-type touch electrode blocks include first touch electrode blocks in the first touch region and second touch electrode blocks in the second touch region. m1 first touch electrode groups are arranged in the first touch region along a second direction. First connecting lines are respectively electrically connected to the first touch electrode groups and the second touch electrode blocks.

First claim

What is claimed is:

1. A touch panel, having a first component region and a touch region, and comprising:
a plurality of first-type touch electrode blocks, the plurality of first-type touch electrode blocks comprising first touch electrode blocks and second touch electrode blocks; wherein the touch region at least partially surrounds the first component region; the touch region comprises a first touch region and a second touch region; the first touch region and the second touch region are respectively located at two sides of the first component region along a first direction; the first touch electrode blocks are located in the first touch region; the second touch electrode blocks are located in the second touch region; and first touch electrode groups arranged in the first region along a second direction, a number of the first touch electrode groups is m1, and one of the first touch electrode groups comprises at least two of the first touch electrode blocks arranged along the first direction and electrically connected to each other, m1 being a positive integer greater than or equal to 2;
m2 first connecting lines, wherein one of the m2 first connecting lines is electrically connected to both one first touch electrode group of the first touch electrode groups and one second touch electrode block of the second touch electrode blocks, m2 being an integer greater than or equal to 0, and m2<m1; and
wherein the first touch electrode groups comprise at least one first touch electrode group that is not electrically connected to the second touch electrodes through the first connecting lines.

2. The touch panel according to claim 1 , wherein 2≤m2, and at least two of the m2 first connecting lines are provided stepwise in different layers.

3. The touch panel according to claim 1 , further having a second component region, wherein the second component region and the first component region are arranged along the second direction, and the touch region at least partially surrounds the second component region; and
at least one of the m2 first connecting lines is provided at a side of the first component region away from the second component region, and at least one of the m2 first connecting lines is provided at a side of the first component region close to the second component region.

4. The touch panel according to claim 1 , wherein at least adjacent ones of the second touch electrode blocks along the second direction are electrically connected to each other.

5. The touch panel according to claim 4 , wherein the first touch electrode group comprises at least one first touch electrode A group; and at least two of the second touch electrode blocks are adjacent to each other along the second direction and electrically connected to each other and are electrically connected to one of the at least one first touch electrode A group through one of the m2 first connecting lines.

6. The touch panel according to claim 5 , wherein the at least one first touch electrode A group comprises at least two touch electrode A groups, wherein different first touch electrode A groups of the at least two touch electrode A groups are electrically connected to a same number of second touch electrode blocks of the second touch electrode blocks.

7. The touch panel according to claim 1 , wherein at least one of the first touch electrode groups each comprises at least two of the first touch electrode blocks close to the first component region and arranged along the second direction.

8. The touch panel according to claim 1 , further comprising:
second-type touch electrode blocks, wherein the second-type touch electrode blocks comprise third touch electrode blocks and fourth touch electrode blocks; and
the touch region comprises a third touch region and a fourth touch region; the third touch region and the fourth touch region are respectively located at two sides of the first component region along the second direction; the third touch electrode blocks are located in the third touch region; the fourth touch electrode blocks are located in the fourth touch region; and n1 second touch electrode groups arranged along the first direction are arranged in the third touch region, and one of the second touch electrode groups comprises at least two of the third touch electrode blocks arranged along the second direction and electrically connected to each other, n1 being a positive integer greater than or equal to 1; and
n2 second connecting lines, wherein one of the n2 second connecting lines is electrically connected to one of the second touch electrode groups and one of the fourth touch electrode blocks, n2 being an integer greater than or equal to 0, and n2≤n1.

9. The touch panel according to claim 8 , further having a second component region, wherein the second component region and the first component region are arranged along the second direction, and the touch region at least partially surrounds the second component region;
the fourth touch region comprises a first touch sub-region and a second touch sub-region; the first touch sub-region is located between the first component region and the second component region; and the second touch sub-region is located at a side of the second component region away from the first component region; and
one fourth touch electrode block of the fourth touch electrode blocks in the first touch sub-region is electrically connected to one second touch electrode group of the second touch electrode groups that is located in the third touch region through one of the n2 second connecting lines, and the fourth touch electrode block is electrically insulated from at least one fourth touch electrode block of the fourth touch electrode blocks that is located in the second touch sub-region.

10. The touch panel according to claim 8 , further having a second component region, wherein the second component region and the first component region are arranged along the second direction, and the touch region at least partially surrounds the second component region;
the fourth touch region comprises a first touch sub-region and a second touch sub-region; the first touch sub-region is located between the first component region and the second component region; and the second touch sub-region is located at a side of the second component region away from the first component region; and
one fourth touch electrode block of the fourth touch electrode blocks in the first touch sub-region is electrically insulated from at least one second touch electrode group of the second touch electrode groups that is located in n the third touch region, and the fourth touch electrode block is electrically connected to another fourth touch electrode of the fourth touch electrodes that is located in the second touch sub-region.

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

12. The display apparatus according to claim 11 , wherein 2≤m2, and at least two of the m2 first connecting lines are provided stepwise in different layers.

13. The display apparatus according to claim 11 , wherein at least adjacent ones of the second touch electrode blocks along the second direction are electrically connected to each other.

14. The display apparatus according to claim 11 , further comprising:
second-type touch electrode blocks, wherein the second-type touch electrode blocks comprise third touch electrode blocks and fourth touch electrode blocks; and the touch region comprises a third touch region and a fourth touch region; the third touch region and the fourth touch region are respectively located at two sides of the first component region along the second direction; the third touch

Assignees

• Wuhan Tianma Micro Electronics Co Ltd
• Wuhan Tianma Microelectronics Co Ltd Shanghai Branch

Inventors

• Wei Qibing
• Zhang Peng

Classifications

• G06F3/0443

  using a single layer of sensing electrodes · 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

• G06F3/04164 Primary

  Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads · CPC title

• G06F3/0445

  using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer · CPC title

• G06F3/0448 Primary

  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