US 12,426,423 B2
Light-emitting substrate, backlight module and display apparatus
Yiding Sun, Beijing (CN); Bing Zhang, Beijing (CN); Hai Tang, Beijing (CN); Liang Gao, Beijing (CN); Xiaolin Geng, Beijing (CN); Jianwei Qin, Beijing (CN); and Xiao Wang, Beijing (CN)
Assigned to Hefei BOE Ruisheng Technology Co., Ltd., Anhui (CN); and BOE TECHNOLOGY GROUP CO., LTD, Beijing (CN)
Appl. No. 18/264,597
Filed by Hefei BOE Ruisheng Technology Co., Ltd., Anhui (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed May 9, 2022, PCT No. PCT/CN2022/091755
§ 371(c)(1), (2) Date Aug. 8, 2023,
PCT Pub. No. WO2023/216070, PCT Pub. Date Nov. 16, 2023.
Prior Publication US 2025/0031502 A1, Jan. 23, 2025
Int. Cl. H10H 20/857 (2025.01); G02F 1/1335 (2006.01); G02F 1/13357 (2006.01); H01L 25/16 (2023.01); H10H 20/855 (2025.01)
CPC H10H 20/857 (2025.01) [G02F 1/133603 (2013.01); G02F 1/133612 (2021.01); H01L 25/167 (2013.01); H10H 20/855 (2025.01)] 20 Claims
OG exemplary drawing
 
1. A light-emitting substrate comprising:
a back plate;
a feedback signal line;
a plurality of light-emitting regions arranged in an array and disposed on the back plate, wherein each light-emitting region is provided with at least one light-emitting group therein, a light-emitting group of the at least one light-emitting group is a first light-emitting group, and a second power supply voltage terminal of the first light-emitting group is electrically connected to the feedback signal line; and
a bonding electrode group disposed on the back plate, wherein the bonding electrode group includes a plurality of bonding electrodes disposed in parallel, and the plurality of bonding electrodes includes a first bonding electrode and remaining bonding electrodes;
wherein the feedback signal line is electrically connected to the first bonding electrode, the feedback signal line is configured to transmit a feedback signal;
an impedance between the first bonding electrode and an adjacent one of the remaining bonding electrodes is larger than an impedance between two adjacent and consecutive ones of the remaining bonding electrodes; and
in an extending direction of the bonding electrode group, a ratio of a distance between the first bonding electrode and the adjacent one of the remaining bonding electrodes to a distance between the two adjacent and consecutive ones of the remaining bonding electrodes is greater than or equal to 3.