US 12,293,737 B2
Touch substrate, display apparatus and display system
Shoujin Cai, Beijing (CN); Cheng Li, Beijing (CN); Chuncheng Che, Beijing (CN); Feng Liu, Beijing (CN); Tiansheng Li, Beijing (CN); Lin Zhou, Beijing (CN); Jie Zhang, Beijing (CN); Jin Cheng, Beijing (CN); Ziran Liu, Beijing (CN); and Yingzi Wang, Beijing (CN)
Assigned to Beijing BOE Sensor Technology Co., Ltd., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/569,671
Filed by Beijing BOE Sensor Technology Co., Ltd., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jun. 24, 2021, PCT No. PCT/CN2021/102024
§ 371(c)(1), (2) Date Dec. 13, 2023,
PCT Pub. No. WO2022/266921, PCT Pub. Date Dec. 29, 2022.
Prior Publication US 2024/0386863 A1, Nov. 21, 2024
Int. Cl. G09G 3/36 (2006.01); G09G 3/3266 (2016.01)
CPC G09G 3/3677 (2013.01) [G09G 3/3266 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/08 (2013.01); G09G 2354/00 (2013.01); G09G 2360/14 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A touch substrate, comprising:
a base substrate comprising a photosensitive region and a frame region surrounding the photosensitive region;
a plurality of photosensitive pixels in an array in the photosensitive region, wherein each of the plurality of photosensitive pixels comprises a non-visible light sensor and a driving transistor; and
at least one gate driving circuit in the frame region, wherein each of the at least one gate driving circuit comprises a plurality of cascaded shift registers, an output terminal of each shift register is electrically connected to gate electrodes of driving transistors in at least one row of photosensitive pixels through at least one gate line, which extends along a first direction;
wherein each shift register comprises a plurality of transistors; and in each shift register, the number of transistors arranged along a second direction is greater than the number of transistors arranged along the first direction, and the second direction is substantially perpendicular to the first direction;
wherein each shift register has a first length in the first direction and a second length in the second direction, and the first length is less than the second length; and
wherein the at least one gate driving circuit comprises two gate driving circuits in the frame region on both sides of an extending direction of the at least one gate line;
and the first length is less than half of a distance between centers of two adjacent photosensitive pixels in the first direction.