US 12,474,808 B2
Touch substrate, touch display panel and touch display apparatus
Jun Yan, Beijing (CN); Fan He, Beijing (CN); Kemeng Tong, Beijing (CN); Qiwei Wang, Beijing (CN); Rong Wang, Beijing (CN); Yi He, Beijing (CN); and Xiangdan Dong, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., Beijing (CN)
Appl. No. 18/695,766
Filed by CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Dec. 22, 2022, PCT No. PCT/CN2022/141139
§ 371(c)(1), (2) Date Mar. 26, 2024,
PCT Pub. No. WO2024/130659, PCT Pub. Date Jun. 27, 2024.
Prior Publication US 2025/0130676 A1, Apr. 24, 2025
Int. Cl. G06F 3/044 (2006.01); G06F 3/0354 (2013.01); G06F 3/041 (2006.01); H10K 59/40 (2023.01)
CPC G06F 3/0446 (2019.05) [G06F 3/03545 (2013.01); G06F 3/04164 (2019.05); G06F 2203/04102 (2013.01); G06F 2203/04107 (2013.01); G06F 2203/04111 (2013.01); H10K 59/40 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A touch display panel, comprising a touch display region and a peripheral region surrounding the touch display region, wherein the peripheral region comprises: a first binding region and a second binding region on two opposite sides of the touch display region, a first bending region between the first binding region and the touch display region, and a second bending region between the second binding region and the touch display region;
the touch display panel further comprises:
a base substrate;
a touch electrode layer on the base substrate and in the touch display region, wherein the touch electrode layer comprises a plurality of touch electrodes in a same layer and insulated from each other; and
a plurality of touch leads on the base substrate, wherein each touch lead is electrically connected to a corresponding one of the plurality of touch electrodes, some touch leads extend from the touch display region through the first bending region to the first binding region, and are bent to a back of the touch display panel in the first bending region, and the other touch leads extend from the touch display region through the second bending region to the second binding region, and are bent to the back of the touch display panel in the second bending region;
wherein the plurality of touch electrodes comprise a plurality of first touch electrodes and a plurality of second touch electrodes crossing each other in a horizontal direction and a vertical direction, the plurality of touch leads comprise first leads and second leads, and the first binding region and the second binding region are respectively located at two ends of the plurality of second touch electrodes in an extending direction of the plurality of second touch electrodes;
another two opposite sides of the touch display region are respectively located at two ends of the plurality of first touch electrodes in an extending direction of the plurality of first touch electrodes, each of the plurality of first touch electrodes extends from one side of the another two opposite sides to the other side of the another two opposite sides, and each of the plurality of second touch electrodes extends from one side of the two opposite sides to the other side of the two opposite sides;
each of the first leads is electrically connected to a first end of a corresponding one of the plurality of first touch electrodes at one side of the another two opposite sides of the touch display region, some first leads each extends from the first end and extends along the extending direction of the plurality of second touch electrodes to extend from the touch display region and then extend through the first bending region to the first binding region, and the other first leads each extends from the first end and extends along the extending direction of the plurality of second touch electrodes to extend from the touch display region and then extend through the second bending region to the second binding region; and
each of the second leads is electrically connected to a first end of a corresponding one of the plurality of second touch electrodes, and the second leads extend from the touch display region through the first bending region adjacent to the second leads to the first binding region; and
the plurality of touch leads further comprises third leads and fourth leads, each of the third leads is electrically connected to a second end of a corresponding one of the plurality of first touch electrodes, some third leads extend from the touch display region through the first bending region to the first binding region, and the other third leads extend from the touch display region through the second bending region to the second binding region; and
each of the fourth leads is electrically connected to a second end of a corresponding one of the plurality of second touch electrodes, and the fourth leads extend from the touch display region through the second bending region adjacent to the fourth leads to the second binding region.