US 12,260,057 B2
Touch substrate and touch display panel
Xuefei Sun, Beijing (CN); Xinxing Wang, Beijing (CN); and Jaegeon You, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/780,646
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Jul. 2, 2021, PCT No. PCT/CN2021/104210
§ 371(c)(1), (2) Date May 27, 2022,
PCT Pub. No. WO2023/272713, PCT Pub. Date Jan. 5, 2023.
Prior Publication US 2024/0160326 A1, May 16, 2024
Int. Cl. G06F 3/044 (2006.01)
CPC G06F 3/0448 (2019.05) [G06F 3/0445 (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 comprising a first surface and a second surface opposite to each other;
a first metal mesh layer disposed on the first surface of the base substrate, the first metal mesh layer comprising a plurality of first metal mesh strips arranged successively along a first direction, every two adjacent first metal mesh strips being independent from each other, each of the plurality of first metal mesh strips extending along a second direction orthogonal to the first direction, each of the plurality of first metal mesh strips comprising a plurality of metal mesh lines, the plurality of metal mesh lines comprising a plurality of trunk portions extending along the second direction and a plurality of branch portions respectively connected to the plurality of trunk portions, extending from the plurality of trunk portions along directions at predetermined angles to the second direction, and the plurality of trunk portions of the plurality of metal mesh lines of each of the plurality of first metal mesh strips being provided with at least one opening along the second direction, such that each of the plurality of first metal mesh strips comprises at least one opening along the second direction; and
a second metal mesh layer disposed on the second surface of the base substrate, the second metal mesh layer comprising a plurality of metal connection structures, each of which comprises a first end, a second end and a metal connection line between the first end and the second end,
wherein an orthographic projection of the metal connection line on the base substrate at least partially overlaps with an orthographic projection of a corresponding opening of the at least one opening on the base substrate, and the first end and the second end are electrically connected to corresponding metal mesh lines of a corresponding first metal mesh strip of the plurality of first metal mesh strips through vias in the base substrate.