Touch control structure and manufacturing method thereof, touch control panel and display device

Patent metadata

Field	Value
Publication number	US-10691272-B2
Application number	US-201816193904-A
Country	US
Kind code	B2
Filing date	Nov 16, 2018
Priority date	Mar 28, 2018
Publication date	Jun 23, 2020
Grant date	Jun 23, 2020

Abstract

The present disclosure provides a touch control structure. The touch control structure includes a first electrode distributed along the first direction and a second electrode distributed along the second direction. The first direction is intersecting with the second direction. The first electrode includes a first sub-electrode which is interval distributed along the second direction and electrically connected. The second electrode includes a second sub-electrode which is interval arrange along the first direction and electrically connected. Each of the first sub electrodes and each of the second sub electrodes all include a plurality of combined parts interval distributed along the first direction, and the adjacent combined parts are connected through the stress relief part. When the touch control structure is bent in the first direction, the stress relief part has a predetermined twist length in the second direction.

First claim

What is claimed is:

1. A touch control structure, comprising:
a first electrode distributed along a first direction, and
a second electrode distributed along a second direction, the first direction intersecting with the second direction,
wherein the first electrode includes a plurality of first sub-electrodes distributed along the second direction with intervals and electrically connected, and wherein the second electrode includes a plurality of second sub-electrodes distributed along the first direction with intervals and electrically connected,
wherein each of the first sub-electrodes and each of the second sub-electrodes respectively include a plurality of combined parts distributed along the first direction with intervals, and adjacent ones of the plurality of combined parts are connected with each other by stress relief parts,
and wherein the touch control structure is bent in the first direction, the stress relief parts have a predetermined twist length in the second direction.

2. The touch control structure according to claim 1 , wherein
the plurality of combined parts and the stress relief parts are connected by joint parts, and wherein a predetermined distance, between an adjacent one of the joint parts in the second direction, is equal to the predetermined twist length.

3. The touch control structure according to claim 2 , wherein
the joint parts between the stress relief parts and the plurality of combined parts are provided in outer sides of the first sub-electrode or the second sub-electrode.

4. The touch control structure according to claim 1 , wherein
when the touch control structure is bent in the first direction, at least a portion of the plurality of combined parts is twisted with the predetermined twist length in the second direction.

5. The touch control structure according to claim 4 , wherein
longitudinal directions of the stress relief parts and the plurality of combined parts are parallel to the second direction.

6. The touch control structure according to claim 1 , wherein
the plurality of first sub-electrodes and the plurality of second sub-electrodes are all rhombus-shaped, and the first direction and the second direction are parallel to diagonal directions of the first plurality of sub-electrodes and the second plurality of sub-electrodes, respectively.

7. The touch control structure according to claim 6 , wherein
the plurality of first sub-electrodes and the plurality of second sub-electrodes are formed in central symmetrical patterns.

8. A method for manufacturing a touch control structure, comprising:
forming a first electrode distributed in parallel to a first direction, the first electrode including first sub-electrodes distributed along a second direction with intervals and electrically connected;
forming the second electrode distributed in parallel to a second direction, the second electrode including second sub-electrodes distributed along the first direction with intervals and electrically connected;
dividing the first sub-electrodes and the second sub-electrodes into a plurality of combined parts along the first direction;
disposing stress relief parts between adjacent ones of the plurality of combined parts, wherein the adjacent ones of the plurality of combined parts are connected by the stress relief parts;
wherein when the touch control structure is bent in the first direction, the stress relief parts are twisted with a predetermined twist length in the second direction.

9. The method according to claim 8 , wherein
forming the plurality of combined parts and the stress relief parts of the first sub-electrodes and the second sub-electrodes through one patterning process.

10. The method according to claim 8 , wherein
etching at least one notch on the first sub-electrodes and the second sub-electrodes to form the plurality of combined parts and the stress relief parts.

11. The method according to claim 10 , wherein
the first sub-electrodes and the second sub-electrodes are formed in central symmetrical patterns respectively.

12. A touch control panel comprising a display area, wherein
the display area includes a bending area, and the touch control structure according to claim 1 is provided on the bending area.

13. The touch control panel according to claim 12 , wherein, the touch control structure according to claim 1 is provided in the display area.

14. A display device, comprising the touch control panel according to claim 12 .

15. A display device, comprising the touch control panel according to claim 13 .

Assignees

• Boe Technology Group Co Ltd
• Boe Tech Group Ltd

Inventors

• Li Wang

Classifications

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · 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

• G06F2203/04103

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

• G06F3/044 Primary

  by capacitive means · 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