US 11,832,498 B2
Organic light-emitting display substrate, manufacturing method thereof, and organic light-emitting display device
Haitao Huang, Beijing (CN); Shi Shu, Beijing (CN); Yang Yue, Beijing (CN); Xiang Li, Beijing (CN); Yong Yu, Beijing (CN); and Chuanxiang Xu, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/043,358
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Mar. 9, 2020, PCT No. PCT/CN2020/078403
§ 371(c)(1), (2) Date Sep. 29, 2020,
PCT Pub. No. WO2020/238317, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 201910449719.6 (CN), filed on May 28, 2019.
Prior Publication US 2022/0328575 A1, Oct. 13, 2022
Int. Cl. H10K 59/60 (2023.01); H10K 59/38 (2023.01); H10K 71/00 (2023.01)
CPC H10K 59/60 (2023.02) [H10K 59/38 (2023.02); H10K 71/00 (2023.02)] 16 Claims
OG exemplary drawing
 
1. An organic light-emitting display substrate comprising a base and a plurality of sub-pixel structures located on one side of the base, at least one of the plurality of sub-pixel structures comprising:
a first protrusion comprising a photoelectric sensing device and a second protrusion comprising a color filter layer, a protrusion height of the first protrusion relative to the base being smaller than a protrusion height of the second protrusion relative to the base;
a planarization layer located on one side of the first protrusion and the second protrusion away from the base, and being in contact with surfaces of the first protrusion and the second protrusion, a material wettability of the planarization layer with respect to the surface of the first protrusion being greater than that with respect to the surface of the second protrusion; and
a white organic light-emitting diode located on one side of the planarization layer away from the base, and emitting light towards the first protrusion and the second protrusion.