US 12,302,710 B2
Display substrate and electronic apparatus
Zongshun Yang, Beijing (CN); Hongtao Yu, Beijing (CN); and Kuanta Huang, Beijing (CN)
Assigned to YUNNAN INVENSIGHT OPTOELECTRONICS TECHNOLOGY CO., LTD., Kunming (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/793,790
Filed by YUNNAN INVENSIGHT OPTOELECTRONICS TECHNOLOGY CO., LTD., Kunming (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Aug. 11, 2021, PCT No. PCT/CN2021/112067
§ 371(c)(1), (2) Date Jul. 19, 2022,
PCT Pub. No. WO2023/015487, PCT Pub. Date Feb. 16, 2023.
Prior Publication US 2024/0179951 A1, May 30, 2024
Int. Cl. H10K 59/122 (2023.01); H10K 59/80 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 59/80521 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a base substrate comprising a first subpixel region and a second subpixel region adjacent to each other,
a dielectric layer located on the base substrate, and
a first electrode layer, a pixel defining layer, an organic functional layer and a second electrode layer which are stacked successively on a side, away from the base substrate, of the dielectric layer and, the first electrode layer comprising a first electrode in the first subpixel region and a second electrode in the second subpixel region,
wherein the pixel defining layer comprises a first opening region, a second opening region, and a pixel defining portion located between the first opening region and the second opening region;
the first opening region exposes at least a portion of the first electrode, and the second opening region exposes at least a portion of the second electrode, and the pixel defining portion further covers a portion of the first electrode and a portion of the second electrode;
the first electrode comprises a first surface and a second surface which are away from the base substrate, and the second surface of the first electrode is closer to the base substrate than the first surface of the first electrode;
the display substrate has a cross section perpendicular to the base substrate; within the cross section and along a first direction parallel to a plate surface of the base substrate, a portion of the pixel defining portion on the first surface of the first electrode has a length denoted by d1, and a portion of the pixel defining portion on the second surface of the first electrode has a length denoted by d2; d1 is less than d2.