US 12,219,825 B2
Display substrate and method for manufacturing the same, and display device
Yanliu Sun, Beijing (CN); Pengxia Liang, Beijing (CN); Ge Shi, Beijing (CN); Jiahui Han, Beijing (CN); Xue Dong, Beijing (CN); Shiyu Zhang, Beijing (CN); Yujie Liu, Beijing (CN); Song Yang, Beijing (CN); and Yuyao Wang, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/612,958
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Feb. 9, 2021, PCT No. PCT/CN2021/076256
§ 371(c)(1), (2) Date Nov. 19, 2021,
PCT Pub. No. WO2022/170479, PCT Pub. Date Aug. 18, 2022.
Prior Publication US 2022/0359631 A1, Nov. 10, 2022
Int. Cl. H01L 27/32 (2006.01); H01L 51/52 (2006.01); H01L 51/56 (2006.01); H10K 50/813 (2023.01); H10K 50/856 (2023.01); H10K 59/124 (2023.01); H10K 59/80 (2023.01); H10K 71/00 (2023.01); H10K 59/12 (2023.01); H10K 59/122 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/124 (2023.02) [H10K 50/813 (2023.02); H10K 50/856 (2023.02); H10K 59/80515 (2023.02); H10K 59/878 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02); H10K 59/122 (2023.02); H10K 2102/351 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a base substrate; and
a plurality of sub-pixels on the base substrate;
wherein each sub-pixel of the plurality of sub-pixels includes a sub-pixel aperture area; each sub-pixel of the plurality of sub-pixels further includes:
a reflective layer, wherein an orthographic projection of the reflective layer onto the base substrate at least partially overlaps an orthographic projection of the sub-pixel aperture area onto the base substrate;
an insulating layer on one side of the reflective layer away from the base substrate;
a plurality of anode patterns independent of each other, wherein the plurality of anode patterns are on one side of the insulating layer away from the base substrate, and each of orthographic projections of the plurality of anode patterns onto the base substrate at least partially overlaps the orthographic projection of the sub-pixel aperture area onto the base substrate;
a light-emitting function layer on one side of the plurality of anode patterns away from the base substrate, wherein an orthographic projection of the light-emitting function layer onto the base substrate at least partially overlaps the orthographic projection of the sub-pixel aperture area onto the base substrate; and
a cathode on one side of the light-emitting function layer away from the base substrate, wherein an orthographic projection of the cathode onto the base substrate covers the orthographic projection of the light-emitting function layer onto the base substrate; an orthographic projection of a first portion of the cathode onto the base substrate is located within the orthographic projection of the sub-pixel aperture area onto the base substrate; there is a segment difference in a surface of the first portion away from the base substrate; in a direction perpendicular to the base substrate, a height of the segment difference is less than or equal to a thickness of the plurality of anode patterns.