US 11,991,909 B2
Display backplane and mobile terminal
Daobing Hu, Guangdong (CN)
Assigned to TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Guangdong (CN)
Appl. No. 17/436,619
Filed by TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Guangdong (CN)
PCT Filed Jul. 28, 2021, PCT No. PCT/CN2021/108794
§ 371(c)(1), (2) Date Sep. 6, 2021,
PCT Pub. No. WO2023/284009, PCT Pub. Date Jan. 19, 2023.
Prior Publication US 2023/0016095 A1, Jan. 19, 2023
Int. Cl. H01L 23/00 (2006.01); H10K 59/131 (2023.01)
CPC H10K 59/131 (2023.02) 20 Claims
OG exemplary drawing
 
1. A display backplane, including:
a plurality of light-emitting units, each of the light-emitting units includes a light-emitting circuit, and each of the light-emitting circuits includes a driving transistor;
at least one detection circuit, each of the detection circuits is electrically connected to source electrodes of the driving transistors in at least two of the light-emitting units, at least for detecting voltages of the source electrodes of the driving transistors in the two corresponding light-emitting units;
wherein when the detection circuit is electrically connected to the plurality of light-emitting units, a switch module is provided between the detection circuit and each of the light-emitting units that are electrically connected to the detection circuit, and the switch module is used to control the conduction between the detection circuit and the corresponding light-emitting units.