US 11,782,304 B2
Display panel, display apparatus, method of fabricating display panel, and counter substrate
Haitao Huang, Beijing (CN); Shi Shu, Beijing (CN); Chuanxiang Xu, Beijing (CN); Liuqing Li, Beijing (CN); Zhao Cui, Beijing (CN); and Renquan Gu, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/419,685
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Sep. 29, 2020, PCT No. PCT/CN2020/118719
§ 371(c)(1), (2) Date Jun. 29, 2021,
PCT Pub. No. WO2022/067472, PCT Pub. Date Apr. 7, 2022.
Prior Publication US 2022/0317513 A1, Oct. 6, 2022
Int. Cl. G02F 1/1335 (2006.01); G02F 1/1343 (2006.01); G02F 1/1368 (2006.01); G03F 7/00 (2006.01); H10K 59/122 (2023.01); G02F 1/1333 (2006.01); H10K 59/12 (2023.01); C23C 16/26 (2006.01); C23C 16/50 (2006.01); H10K 71/00 (2023.01); H10K 102/00 (2023.01)
CPC G02F 1/133519 (2021.01) [C23C 16/26 (2013.01); C23C 16/50 (2013.01); G02F 1/1368 (2013.01); G02F 1/133514 (2013.01); G02F 1/133548 (2021.01); G02F 1/134345 (2021.01); G03F 7/0007 (2013.01); H10K 59/122 (2023.02); H10K 71/00 (2023.02); G02F 1/133357 (2021.01); G02F 2202/36 (2013.01); H10K 59/1201 (2023.02); H10K 2102/331 (2023.02)] 10 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a base substrate;
a bank layer on the base substrate, the bank layer defining a plurality of bank apertures;
a quantum dots material layer on the base substrate, the quantum dots material layer comprising a plurality of quantum dots blocks respectively in at least some of the plurality of bank apertures; and
a barrier coating layer in a respective one of the plurality of bank apertures;
wherein at least a portion of the bank layer between two adjacent bank apertures comprises a first surface, a second surface opposite to the first surface, a third surface connecting the first surface and the second surface closer to a first bank aperture of the two adjacent bank apertures, and a fourth surface connecting the first surface and the second surface closer to a second bank aperture of the two adjacent bank apertures;
at least a portion of the third surface is a wavy surface comprising alternating convex and concave portions;
at least a portion of the fourth surface is a wavy surface comprising alternating convex and concave portions;
in a respective one of the plurality of bank apertures having a respective one of the plurality of quantum dots blocks, an orthographic projection of the alternating convex and concave portions of the third surface on a vertical plane at least partially overlaps with an orthographic projection of the respective one of the plurality of quantum dots blocks on the vertical plane, and an orthographic projection of the alternating convex and concave portions of the fourth surface on the vertical plane at least partially overlaps with an orthographic projection of the respective one of the plurality of quantum dots blocks on the vertical plane; and
the vertical plane is a plane perpendicular to the base substrate and perpendicular to a direction from the first bank aperture to the second bank aperture;
wherein the barrier coating layer is in direct contact with the at least a portion of the third surface and in direct contact with the at least a portion of the fourth surface;
the barrier coating layer comprises surface functionalized graphene; and
the surface functionalized graphene is a plasma functionalized graphene comprising one or more of surface functional groups, which bind, through interactions comprising hydrogen bonds, to functional groups in quantum dots materials in the respective one of the plurality of quantum dots blocks.