Granted Patent B2

US 11,099,693 · App. 16/638,436 · Granted Aug 24, 2021

Inventors: Zhiying Bao (Beijing, CN); Shijun Wang (Beijing, CN); Bo Feng (Beijing, CN); Wenkai Mu (Beijing, CN); Wenjun Xiao (Beijing, CN); Haoliang Ji (Beijing, CN); Xiaoxiao Chen (Beijing, CN); Ji Dong (Beijing, CN); Bingqing Yang (Beijing, CN); Tianxin Zhao (Beijing, CN); Hao Xu (Beijing, CN); Yang Wang (Beijing, CN)

Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.; BOE Technology Group Co., Ltd.

G06F3/0443G06F3/04164G06F2203/04107

Abstract

Claims (94)

1. A touch-sensing display substrate, comprising a touch-sensing structure configured to detect a touch position;

wherein the touch-sensing structure comprises:

a plurality of first touch-sensing signal lines;

a plurality of first touch-sensing electrodes; and

a first insulating layer between the plurality of first touch-sensing signal lines and the plurality of first touch-sensing electrodes;

wherein a respective one of the plurality of first touch-sensing signal lines crosses over the plurality of first touch-sensing electrodes;

a plurality of first vias at least partially extend into the first insulating layer in regions where the plurality of first touch-sensing signal lines cross over the plurality of first touch-sensing electrodes;

the plurality of first vias comprises at least a through-hole via, through which the respective one of the plurality of first touch-sensing signal lines is electrically connected to a corresponding first touch-sensing electrode;

the plurality of first vias comprise at least a blind via partially extending into the first insulating layer in a region where the respective one of the plurality of first touch-sensing signal lines crosses over one of the plurality of first touch-sensing electrodes other than the corresponding first touch-sensing electrode; and

the respective one of the plurality of first touch-sensing signal lines is insulated from the one of the plurality of first touch-sensing electrodes other than the corresponding first touch-sensing electrode;

wherein the first insulating layer comprises a first insulating sub-layer on the plurality of first touch-sensing signal lines, and a second insulating sub-layer on a side of the first insulating sub-layer away from the plurality of first touch-sensing signal lines;

the through-hole via comprises a first sub-via extending through the first insulating sub-layer, and a second sub-via extending through the second insulating sub-layer;

the first sub-via is connected with the second sub-via, allowing the respective one of the plurality of first touch-sensing signal lines to be electrically connected to the corresponding first touch-sensing electrode through the first sub-via and the second sub-via; and

the blind via extends into at least the second insulating sub-layer but does not extend through the first insulating sub-layer.

2. The touch-sensing display substrate of claim 1 , wherein any via of the plurality of first vias in regions where the respective one of the plurality of first touch-sensing signal lines crosses over first touch-sensing electrodes other than the corresponding first touch-sensing electrode is a blind via.

3. The touch-sensing display substrate of claim 1 , wherein any via of the plurality of first vias in a region where the respective one of the plurality of first touch-sensing signal lines crosses over the corresponding first touch-sensing electrode is a through-hole via.

4. The touch-sensing display substrate of claim 1 , wherein a total number of vias of the plurality of first vias in each region where the respective one of the plurality of first touch-sensing signal lines crosses over each of the plurality of first touch-sensing electrodes is substantially same.

5. The touch-sensing display substrate of claim 1 , wherein a respective one of the plurality of first touch-sensing electrodes crosses over the plurality of first touch-sensing signal lines respectively forming a plurality of cross-over regions;

the respective one of the plurality of first touch-sensing electrodes is electrically connected to a corresponding first touch-sensing signal line through the through-hole via;

the respective one of the plurality of first touch-sensing electrodes is insulated from the plurality of first touch-sensing signal lines other than the corresponding first touch-sensing signal line;

the plurality of first vias comprise at least one blind via partially extending into the first insulating layer in a region where the respective one of the plurality of first touch-sensing electrodes crosses over first touch-sensing signal lines other than the corresponding first touch-sensing signal line.

6. The touch-sensing display substrate of claim 5 , wherein any via of the plurality of first vias in regions where the respective one of the plurality of first touch-sensing electrodes crosses over first touch-sensing signal lines other than the corresponding first touch-sensing signal line is a blind via.

7. The touch-sensing display substrate of claim 5 , wherein a total number of vias of the plurality of first vias in each of the plurality of cross-over regions is substantially same.

8. The touch-sensing display substrate of claim 1 , wherein the respective one of the plurality of first touch-sensing signal lines crosses over the plurality of first touch-sensing electrodes along a cross-over direction; and

a column of multiple first vias along the cross-over direction of the plurality of first vias are evenly distributed.

9. A touch-sensing display substrate, comprising a touch-sensing structure configured to detect a touch position;

wherein the touch-sensing structure comprises:

a plurality of first touch-sensing signal lines;

a plurality of first touch-sensing electrodes; and

a first insulating layer between the plurality of first touch-sensing signal lines and the plurality of first touch-sensing electrodes;

wherein a respective one of the plurality of first touch-sensing signal lines crosses over the plurality of first touch-sensing electrodes;

a plurality of first vias at least partially extend into the first insulating layer in regions where the plurality of first touch-sensing signal lines cross over the plurality of first touch-sensing electrodes;

the plurality of first vias comprises at least a through-hole via, through which the respective one of the plurality of first touch-sensing signal lines is electrically connected to a corresponding first touch-sensing electrode;

the plurality of first vias comprise at least a blind via partially extending into the first insulating layer in a region where the respective one of the plurality of first touch-sensing signal lines crosses over one of the plurality of first touch-sensing electrodes other than the corresponding first touch-sensing electrode; and

the respective one of the plurality of first touch-sensing signal lines is insulated from the one of the plurality of first touch-sensing electrodes other than the corresponding first touch-sensing electrode;

wherein the touch-sensing display substrate further comprises:

a plurality of auxiliary electrodes respectively connecting the plurality of first touch-sensing electrodes with the plurality of first touch-sensing signal lines; and

a second insulating layer between the plurality of auxiliary electrodes and a structure comprising the plurality of first touch-sensing electrodes and the plurality of first touch-sensing signal lines.

10. The touch-sensing display substrate of claim 9 , further comprising a plurality of second vias respectively extending through the second insulating layer;

wherein a respective one of the plurality of auxiliary electrodes is electrically connected to the respective one of the plurality of first touch-sensing electrodes through a respective one of the plurality of second vias.

11. The touch-sensing display substrate of claim 9 , further comprising a plurality of third vias respectively extending through the second insulating layer;

wherein a respective one of the plurality of auxiliary electrodes extends through a respective one of the plurality of third vias; and

the respective one of the plurality of third vias is connected with the respective one of the plurality of first vias.

12. The touch-sensing display substrate of claim 11 , wherein, in a region corresponding to the through-hole via, the respective one of the plurality of third vias is connected with the through-hole via; and

the respective one of the plurality of auxiliary electrodes is electrically connected to the respective one of the plurality of first touch-sensing signal lines through the respective one of the plurality of third vias and the through-hole via.

13. The touch-sensing display substrate of claim 11 , in a region corresponding to the blind via, further comprising a plurality of fourth vias and a plurality of fifth vias at least partially extending into the second insulating layer;

wherein the blind via comprises a first blind sub-via and a second blind sub-via;

the respective one of the plurality of fourth vias is connected with the first blind sub-via;

the respective one of the plurality of fifth vias is connected with the second blind sub-via;

the respective one of the plurality of auxiliary electrodes is electrically connected to the respective one of the plurality of first touch-sensing electrodes through the respective one of the plurality of fourth vias and the first blind sub-via or through the respective one of the plurality of fifth vias and the second blind sub-via.

14. The touch-sensing display substrate of claim 9 , wherein further comprising a second blind via partially extending into the first insulating layer;

the respective one of the plurality of auxiliary electrodes at least partially extends into the second blind via; and

the region corresponding to the blind via and the region corresponding to the second blind via are non-overlapping.

15. The touch-sensing display substrate of claim 9 , further comprising a plurality of pixel electrodes respectively in a plurality of subpixel regions; and

a plurality of thin film transistors respectively driving image display in a plurality of subpixels;

a drain electrode of a respective one of the plurality of thin film transistors is electrically connected to a respective one of the plurality of pixel electrodes;

wherein the plurality of auxiliary electrodes and the plurality of pixel electrodes are in a same layer and comprise a same material.

16. The touch-sensing display substrate of claim 1 , further comprising:

a plurality of second touch-sensing electrodes; and

a plurality of second touch-sensing signal lines;

wherein a respective one of the plurality of second touch-sensing signal lines is electrically connected to one of the plurality of second touch-sensing electrodes;

the respective one of the plurality of second touch-sensing signal lines is substantially parallel to the plurality of second touch-sensing electrodes; and

an orthographic projection of the respective one of the plurality of second touch-sensing signal lines on a base substrate at least partially overlaps with an orthographic projection of the one of the plurality of second touch-sensing electrodes on the base substrate.

17. The touch-sensing display substrate of claim 16 , further comprising a plurality of first apertures respectively extending through a thickness of the respective one of the plurality of first touch-sensing electrodes;

wherein the respective one of the plurality of second touch-sensing electrodes comprises a plurality of second touch-sensing sub-electrodes;

in a region where the respective one of the plurality of first touch-sensing electrodes crosses over a respective one of the plurality of second touch-sensing electrodes, second touch-sensing sub-electrodes are in a region corresponding to one or more first apertures;

one of the second touch-sensing sub-electrodes of the respective one of the plurality of second touch-sensing electrodes is in a region corresponding to one of the plurality of first apertures corresponding to the respective one of the plurality of first touch-sensing electrodes;

the respective one of the plurality of second touch-sensing signal lines connects a column of second touch-sensing sub-electrodes of the plurality of second touch-sensing sub-electrodes in the respective one of the plurality of second touch-sensing electrodes.

18. A touch-sensing display substrate, comprising a touch-sensing structure configured to detect a touch position;

wherein the touch-sensing structure comprises: a plurality of first touch-sensing signal lines;

a plurality of first touch sensing electrodes; and

a first insulating layer between the plurality of first touch-sensing signal lines and the plurality of first touch-sensing electrodes,

wherein a respective one of the plurality of first touch-sensing signal lines crosses over the plurality of first touch-sensing electrodes;

a plurality of first vias at least partially extend into the first insulating layer in regions where the plurality of first touch-sensing signal lines cross over the plurality of first touch-sensing electrodes;

the plurality of first vias comprises at least a through-hole via, through which the respective one of the plurality of first touch-sensing signal lines is electrically connected to a corresponding first touch-sensing electrode;

the plurality of first vias comprise at least a blind via partially extending into the first insulating layer in a region where the respective one of the plurality of first touch-sensing signal lines crosses over one of the plurality of first touch-sensing electrodes other than the corresponding first touch-sensing electrode;

and the respective one of the plurality of first touch-sensing signal lines is insulated from the one of the plurality of first touch-sensing electrodes other than the corresponding first touch-sensing electrode;

wherein the touch-sensing display substrate further comprises: a plurality of second touch-sensing electrodes;

a plurality of second touch-sensing signal lines;

a plurality of first apertures respectively extending through a thickness of the respective one of the plurality of first touch-sensing electrodes;

and a plurality of second apertures respectively extending through the respective one of the plurality of first touch-sensing electrodes;

wherein a respective one of the plurality of second touch-sensing signal lines is electrically connected to one of the plurality of second touch-sensing electrodes;

the respective one of the plurality of second touch-sensing signal lines is substantially parallel to the plurality of second touch-sensing electrodes;

an orthographic projection of the respective one of the plurality of second touch-sensing signal lines on a base substrate at least partially overlaps with an orthographic projection of the one of the plurality of second touch-sensing electrodes on the base substrate;

the respective one of the plurality of second touch-sensing electrodes comprises a plurality of second touch-sensing sub-electrodes;

in a region where the respective one of the plurality of first touch-sensing electrodes crosses over a respective one of the plurality of second touch-sensing electrodes, second touch-sensing sub-electrodes are in a region corresponding to one or more first apertures;

one of the second touch-sensing sub-electrodes of the respective one of the plurality of second touch-sensing electrodes is in a region corresponding to one of the plurality of first apertures corresponding to the respective one of the plurality of first touch-sensing electrodes;

and the respective one of the plurality of second touch-sensing signal lines connects a column of second touch-sensing sub-electrodes of the plurality of second touch-sensing sub-electrodes in the respective one of the plurality of second touch-sensing electrodes;

wherein any signal line that crosses over multiple first apertures of the plurality of first apertures in multiple first touch-sensing electrodes of the plurality of first touch-sensing electrodes is absent in regions corresponding to the plurality of second apertures;

and any signal line that crosses over multiple second apertures of the plurality of second apertures in multiple first touch-sensing electrodes of the plurality of first touch-sensing electrodes is absent in regions corresponding to the plurality of first apertures.

19. A touch-sensing display apparatus, comprising the touch-sensing display substrate of claim 1 , and one or more integrated circuits connected to the touch-sensing display substrate.

20. The touch-sensing display apparatus of claim 19 , wherein the touch-sensing display apparatus is operated in a time division mode comprising a display mode and a touch control mode;

wherein, in the display mode, the plurality of first touch-sensing electrodes are used as a common electrode and are configured to be provided with a common voltage;

wherein, in the touch control mode, the plurality of first touch-sensing electrodes are a plurality of touch-sensing electrodes configured to transmit touch signals.

Assignments (12)

Priority Claims (2)

Continuity (1)