US 12,449,930 B2
Touch sensor and display apparatus
Wenxiao Niu, Beijing (CN); Hengzhen Liang, Beijing (CN); Qing Gong, Beijing (CN); and Shiheng Mu, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and Beijing BOE Technology Development Co., Ltd., Beijing (CN)
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Chengdu (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Jan. 8, 2024, as Appl. No. 18/406,625.
Application 18/406,625 is a continuation of application No. 17/427,423, granted, now 11,907,467, previously published as PCT/CN2020/080190, filed on Mar. 19, 2020.
Prior Publication US 2024/0143105 A1, May 2, 2024
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); H10K 59/131 (2023.01); H10K 59/40 (2023.01)
CPC G06F 3/04164 (2019.05) [G06F 3/0412 (2013.01); G06F 3/0446 (2019.05); H10K 59/131 (2023.02); H10K 59/40 (2023.02); G06F 2203/04111 (2013.01); G06F 2203/04112 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A touch sensor, comprising: a first opening region, a plurality of first touch electrodes and a plurality of second touch electrodes,
wherein a center of the first opening region and a center of the touch sensor do not coincide;
the plurality of first touch electrodes respectively extend along a first direction, and at least one of the plurality of first touch electrodes comprises a plurality of first touch sub-electrodes arranged side by side in the first direction and electrically connected with each other;
the plurality of second touch electrodes respectively extend along a second direction intersecting with the first direction, and at least one of the plurality of second touch electrodes comprises a plurality of second touch sub-electrodes arranged side by side in the second direction and electrically connected with each other;
the plurality of first touch electrodes are arranged side by side along the second direction, and the plurality of second touch electrodes are arranged side by side along the first direction; and
the plurality of first touch sub-electrodes and the plurality of second touch sub-electrodes together at least partially surround the first opening region;
the touch sensor has a first region, a second region and a third region which are sequentially laid out in the second direction, and the first opening region is positioned in the second region;
the touch sensor further comprises a plurality of dummy electrodes, wherein at least one of the plurality of dummy electrodes is arranged between the first touch sub-electrode and the second touch sub-electrode that are adjacent; and
a width of the dummy electrode between the first touch sub-electrode and the second touch sub-electrode that are adjacent in the first region is less than or equal to a width of the dummy electrode between the first touch sub-electrode and the second touch sub-electrode that are adjacent in the third region;
the number of the dummy electrodes between the first touch sub-electrode and the second touch sub-electrode that are adjacent in the first region is one, and the number of the dummy electrodes between the first touch sub-electrode and the second touch sub-electrode that are adjacent in the third region is two;
the touch sensor further comprises a first electrode layer and a connecting electrode layer,
wherein the first electrode layer is different from the connecting electrode layer;
the first electrode layer comprises the plurality of first touch electrodes, the plurality of second touch electrodes and a plurality of intermediate sub-electrodes;
the connecting electrode layer comprises a plurality of first connecting sub-electrodes;
at least one of the plurality of intermediate sub-electrodes is positioned in the third region, and arranged between two adjacent second touch sub-electrodes in the third region;
both ends of each first connecting sub-electrode in the third region are respectively, electrically connected with one corresponding second touch sub-electrode and one corresponding intermediate sub-electrode; and
both ends of each first connecting sub-electrode in the first region are respectively, electrically connected with two adjacent second touch sub-electrodes.