Touch panel, electronic device, and touch system

Patent metadata

Field	Value
Publication number	US-12591344-B2
Application number	US-202418991742-A
Country	US
Kind code	B2
Filing date	Dec 23, 2024
Priority date	Jun 25, 2022
Publication date	Mar 31, 2026
Grant date	Mar 31, 2026

Abstract

A touch panel, an electronic device, and a touch system are provided. The touch panel includes a plurality of repeating units arranged in an array, each repeating unit includes N first electrodes and M second electrodes that are alternately arranged in a first direction, and both N and M are integers greater than or equal to 3. First electrodes in repeating units that are adjacent in a second direction in the plurality of repeating units are connected in one-to-one correspondence, and extend in the second direction, and the second direction is perpendicular to the first direction. The M second electrodes in the repeating unit are connected through a conductive bridge in the first direction, and second electrodes in repeating units that are adjacent in the first direction in the plurality of repeating units are connected to each other.

First claim

The invention claimed is:

1 . A touch panel, comprising a plurality of repeating units arranged in an array, wherein each repeating unit comprises N first electrodes and M second electrodes, the N first electrodes and the M second electrodes are alternately arranged in a first direction, and both N and M are integers greater than or equal to 3;
wherein in a second direction perpendicular to the first direction, first electrodes in first adjacent repeating units of the plurality of repeating units are connected in one-to-one correspondence; and wherein in the first direction, the M second electrodes in the repeating unit are connected through a conductive bridge, and second electrodes on boundaries of second adjacent repeating units that of the plurality of repeating units and are adjacent in the first direction are connected to each other; wherein each first electrode comprises a plurality of first convex portions and a plurality of first concave portions, and each second electrode comprises a plurality of second convex portions and a plurality of second concave portions; and the plurality of first convex portions and the plurality of second concave portions are disposed in correspondence, the plurality of first concave portions and the plurality of second convex portions are disposed in correspondence, every two adjacent first convex portions in the first electrode are connected through one first concave portion, and every two adjacent second concave portions in the second electrode are connected through one second convex portion.

2 . The panel according to claim 1 , wherein M=N+1, and in the first direction, a boundary of the repeating unit is one of the M second electrodes.

3 . The panel according to claim 1 , wherein the N first electrodes and the M second electrodes are metal grid electrodes.

4 . The panel according to claim 1 , wherein a first gap exists between each first electrode in the repeating unit and its adjacent second electrode in the repeating unit.

5 . The panel according to claim 1 , wherein a second gap exists between second electrodes of the first adjacent repeating units of the plurality of repeating units.

6 . The panel according to claim 1 , wherein the first direction comprises a column direction or a row direction.

7 . The panel according to claim 1 , wherein the plurality of first convex portions and the plurality of second concave portions are rectangular; and/or wherein the plurality of first concave portions and the plurality of second convex portions are rectangular.

8 . The panel according to claim 1 , wherein in each first electrode, the plurality of first convex portions have a same width in the first direction, and the plurality of first concave portions have a same width in the first direction; and
wherein in each second electrode, the plurality of second convex portions have a same width in the first direction, and the plurality of second concave portions have a same width in the first direction.

9 . The panel according to claim 1 , wherein a width of at least one of the N first electrodes is different from a width of a remaining first electrode, and the width of the first electrode is the width of the plurality of first convex portions in the first direction.

10 . The panel according to claim 9 , wherein a width of at least one of the M second electrodes is different from a width of a remaining second electrode, and the width of the second electrode is the width of the plurality of second concave portions in the first direction.

11 . The panel according to claim 10 , wherein N=3, M=4, the N first electrodes comprise a first electrode S 1 , a first electrode S 2 , and a first electrode S 3 , and the M second electrodes comprise a second electrode K 1 , a second electrode K 2 , a second electrode K 3 , and a second electrode K 4 ;
the second electrode K 1 , the second electrode K 2 , the second electrode K 3 , and the second electrode K 4 are alternately arranged with the first electrode S 1 , the first electrode S 2 , and the first electrode S 3 in sequence in the first direction; a width of the first electrode S 2 is less than a width of the second electrode K 2 , the width of the second electrode K 2 is equal to a width of the second electrode K 3 , the width of the second electrode K 3 is less than a width of the first electrode S 1 , and the width of the first electrode S 1 is equal to a width of the first electrode S 3 ; and a sum of a width of the second electrode K 1 and a width of the second electrode K 4 is greater than the width of the first electrode S 1 , or a sum of a width of the second electrode K 1 and a width of the second electrode K 4 is equal to the width of the second electrode K 3 .

12 . An electronic device, comprising a flexible display with a touch panel, wherein the touch panel comprises a plurality of repeating units arranged in an array, each repeating unit comprises N first electrodes and M second electrodes, the N first electrodes and the M second electrodes are alternately arranged in a first direction, and both N and M are integers greater than or equal to 3;
wherein in a second direction perpendicular to the first direction, first electrodes in first adjacent repeating units of the plurality of repeating units are connected in one-to-one correspondence; and wherein in the first direction, the M second electrodes in the repeating unit are connected through a conductive bridge, and second electrodes on boundaries of second adjacent repeating units that are of the plurality of repeating units and are adjacent in the first direction are connected to each other; wherein each first electrode comprises a plurality of first convex portions and a plurality of first concave portions, and each second electrode comprises a plurality of second convex portions and a plurality of second concave portions; and the plurality of first convex portions and the plurality of second concave portions are disposed in correspondence, the plurality of first concave portions and the plurality of second convex portions are disposed in correspondence, every two adjacent first convex portions in the first electrode are connected through one first concave portion, and every two adjacent second concave portions in the second electrode are connected through one second convex portion.

13 . The electronic device according to claim 12 , wherein the electronic device further comprises an active stylus, and the active stylus is configured to perform a touch operation on the flexible display.

14 . A touch system, comprising an electronic device and an active stylus, wherein the electronic device comprises a touch panel, a touch operation performed by the active stylus on the electronic device is received through the touch panel, and the touch panel comprises a plurality of repeating units arranged in an array, each repeating unit comprises N first electrodes and M second electrodes, the N first electrodes and the M second electrodes are alternately arranged in a first direction, and both N and M are integers greater than or equal to 3;
wherein in a second direction perpendicular to the first direction, first electrodes in first adjacent repeating units of the plurality of repeating units are connected in one-to-one correspondence; and wherein in the first direction, the M second electrodes in the repeating unit are connected through a conductive bridge, and second electrodes on boundaries of second adjacent repeating units that are of the plurality of repeating units and are adjacent in the first direction are connected to each other; wherein each first electrode compris

Assignees

• Huawei Tech Co Ltd

Inventors

• Zhang Junyong
• Chen Zesheng

Classifications

• G06F3/03545

  Pens or stylus · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F3/0443

  using a single layer of sensing electrodes · 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

• G06F2203/04102

  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