US 11,971,640 B2
Display substrate and display device
Feng Li, Beijing (CN); Yu Ma, Beijing (CN); Qi Sang, Beijing (CN); Jiantao Liu, Beijing (CN); Li Tian, Beijing (CN); and Jing Wang, Beijing (CN)
Assigned to Beijing BOE Display Technology Co., Ltd., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/631,334
Filed by Beijing BOE Display Technology Co., Ltd., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Mar. 12, 2021, PCT No. PCT/CN2021/080394
§ 371(c)(1), (2) Date Jan. 28, 2022,
PCT Pub. No. WO2021/218439, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 202010357107.7 (CN), filed on Apr. 29, 2020.
Prior Publication US 2022/0283457 A1, Sep. 8, 2022
Int. Cl. G02F 1/1368 (2006.01); G02F 1/1362 (2006.01)
CPC G02F 1/1368 (2013.01) [G02F 1/136254 (2021.01); G02F 1/136286 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a base substrate having a peripheral region; and
at least one test unit in the peripheral region of the base substrate, each of the at least one test unit comprising a plurality of thin film transistors,
wherein the plurality of thin film transistors share a gate electrode, and the shared gate electrode comprises a plurality of sub-electrodes arranged at intervals and each extending in a first direction,
the display substrate further comprises a switch signal line coupled to the test unit, and a different test unit is coupled to a different switch signal line, and
the switch signal line has a main body extending in a second direction that intersects the first direction and a plurality of tooth each extending in the first direction from the main body, the plurality of tooth are coupled to the sub-electrodes in one-to-one correspondence, and each tooth and the sub-electrode coupled thereto are an integral structure.