US 12,336,371 B2
Light-emitting component and method for manufacturing the same, display substrate and display device
Meng Sun, Beijing (CN); Shuyun Xu, Beijing (CN); Hui Zhou, Beijing (CN); Lihui Ma, Beijing (CN); Xiaobo Du, Beijing (CN); and Yansong Li, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
Filed on Nov. 1, 2021, as Appl. No. 17/516,402.
Claims priority of application No. 202110090322.X (CN), filed on Jan. 22, 2021.
Prior Publication US 2022/0238834 A1, Jul. 28, 2022
Int. Cl. H01L 51/50 (2006.01); H10K 50/11 (2023.01); H10K 50/155 (2023.01); H10K 50/165 (2023.01); H10K 50/17 (2023.01); H10K 71/00 (2023.01); H10K 101/40 (2023.01)
CPC H10K 50/171 (2023.02) [H10K 50/11 (2023.02); H10K 50/155 (2023.02); H10K 50/165 (2023.02); H10K 71/00 (2023.02); H10K 2101/40 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A light-emitting component, comprising: an anode layer, a first functional layer group comprising a plurality of functional layers, an organic light-emitting layer, a second functional layer group comprising a plurality of functional layers, and a cathode layer, which layers are stacked on one side of a base;
the first functional layer group comprises a hole injection retarding layer close to the organic light-emitting layer, and the hole injection retarding layer is used for reducing a hole transport rate; and/or,
the second functional layer group comprises an electron injection retarding layer close to the organic light-emitting layer, and the electron injection retarding layer is used for reducing an electron transport rate;
wherein in a direction away from the anode layer, the first functional layer group comprises a hole transport layer and the hole injection retarding layer stacked sequentially; or
the first functional layer group comprises a hole transport layer, wherein doping particles for reducing the hole transport rate are distributed in the hole transport layer, and the hole transport layer is reused as the hole injection retarding layer.
 
19. A method for manufacturing a light-emitting component, comprising the following steps:
forming an anode layer on one side of a substrate, the substrate comprising a base and a switching device layer on the base, the anode layer being formed on one side of the switching device layer facing away from the base;
forming a first functional layer group on one side of the anode layer facing away from the substrate;
sequentially forming an organic light-emitting layer, a second functional layer group and a cathode layer on one side of the first functional layer facing away from the substrate;
wherein the first functional layer group comprises a hole injection retarding layer for reducing a hole transport rate; and/or the second functional layer group comprises an electron injection retarding layer for reducing an electron transport rate;
wherein in a direction away from the anode layer, the first functional layer group comprises a hole transport layer and the hole injection retarding layer stacked sequentially; or
the first functional layer group comprises a hole transport layer, wherein doping particles for reducing the hole transport rate are distributed in the hole transport layer, and the hole transport layer is reused as the hole injection retarding layer.