US 12,144,218 B2
Display substrate and display device with display uniformity
Linhong Han, Beijing (CN); Shikai Qin, Beijing (CN); Yi Zhang, Beijing (CN); Yang Zhou, Beijing (CN); and Meng Zhang, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/297,484
Filed by CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Aug. 10, 2020, PCT No. PCT/CN2020/108102
§ 371(c)(1), (2) Date May 27, 2021,
PCT Pub. No. WO2022/032423, PCT Pub. Date Feb. 17, 2022.
Prior Publication US 2022/0310770 A1, Sep. 29, 2022
Int. Cl. H10K 59/131 (2023.01)
CPC H10K 59/1315 (2023.02) 20 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a base substrate comprising a display region, a bending region and a pad region, wherein a length of the display region in a first direction is greater than a length of the display region in a second direction, wherein the first direction is perpendicular to the second direction, and the pad region, the bending region, and the display region are arranged along the second direction;
a plurality of pixels arranged in an array and disposed in the display region;
a first bridging portion in the pad region and a second bridging portion in the display region; and
a plurality of first power line groups and a plurality of first signal lines, wherein each of the first power line groups comprises at least two first power lines configured to supply a first direct-current power signal, wherein each of the first power lines and each of the first signal lines extend from the pad region to the display region and are connected to at least one of the pixels, and extending directions of part of line segments for connecting the pixels to each of the first power lines and each of the first signal lines are all parallel to the second direction; each of the first power lines comprises a first sub-line segment, a second sub-line segment, and a third sub-line segment; wherein the first sub-line segment is arranged in the pad region, wherein one end of the first sub-line segment is connected to a power supply terminal, and the other end of the first sub-line segment is connected to the first bridging portion; one end of the second sub- line segment is connected to the first bridging portion, and the other end of the second sub-line segment is connected to the second bridging portion; and one end of the third sub-line segment is connected to the second bridging portion, and the other end of the third sub-line segment is connected to at least one of the pixels;
wherein the first sub-line segment, the second sub-line segment, the third sub-line segment. the first bridging portion, and the second bridging portion are all arranged in the same layer as a source/drain metal layer in the display substrate.