US 12,487,720 B2
Touch substrate, touch display panel and display apparatus
Hui Luo, Beijing (CN); Jiamian Sun, Beijing (CN); Yuheng Qiu, Beijing (CN); Chaoxue Qin, Beijing (CN); Ying Liu, Beijing (CN); Zerong Yang, Beijing (CN); Yunpeng Zhu, Beijing (CN); Zhiqiang Liang, Beijing (CN); Zhiwei Dang, Beijing (CN); Xuwu Hu, Beijing (CN); Yangsheng Liu, Beijing (CN); Wei Lin, Beijing (CN); Hwang Kim, Beijing (CN); Wanli Bian, Beijing (CN); Jianqiang Zhu, Beijing (CN); and Xianglong Chen, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and Beijing BOE Technology Development Co., Ltd., Beijing (CN)
Appl. No. 18/292,466
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Feb. 27, 2023, PCT No. PCT/CN2023/078511
§ 371(c)(1), (2) Date Jan. 26, 2024,
PCT Pub. No. WO2023/169242, PCT Pub. Date Sep. 14, 2023.
Claims priority of application No. 202210230529.7 (CN), filed on Mar. 10, 2022.
Prior Publication US 2024/0256095 A1, Aug. 1, 2024
Int. Cl. G06F 3/044 (2006.01); G06F 3/041 (2006.01)
CPC G06F 3/0448 (2019.05) [G06F 3/0412 (2013.01); G06F 3/0446 (2019.05); G06F 2203/04111 (2013.01); G06F 2203/04112 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A touch substrate, comprising:
a base substrate;
a first metal layer on the base substrate and comprising a plurality of bridging electrodes;
an insulating layer on a side of the first metal layer away from the base substrate; and
a second metal layer on a side of the insulating layer away from the base substrate and comprising a plurality of first touch electrodes and a plurality of second touch electrodes crossing each other and insulated from each other, wherein the plurality of first touch electrodes extend along a first direction, the plurality of second touch electrodes extend along a second direction, the first touch electrode comprises at least two sub-electrodes, and the sub-electrode and its corresponding second touch electrode have a spacing region therebetween in the first direction;
wherein the bridging electrode electrically connects the at least two sub-electrodes of its corresponding first touch electrode through vias penetrating through the insulating layer, an orthographic projection of the spacing region on the base substrate does not overlap with an orthographic projection of the vias on the base substrate, and a line width of at least a part of the bridging electrode in the spacing region is greater than a line width of the second touch electrode;
wherein the bridging electrode is the spacing region comprises a main body, and a first connection portion and a second connection portion electrically connected to two opposing sides of the main body;
the first connection portion and the second connection portion are symmetrically arranged about a center line of the main body along the first direction;
a shape of each of the first connection portion and the second connection portion is a triangle, a quadrangle, or a trapezoid; and
the shape of each of the first connection portion and the second connection portion is a triangle, and any side or vertex of the triangle is electrically connected to the main body.