US 12,336,372 B2
Organic light-emitting diode, method of manufacturing the same and organic light-emitting diode display apparatus
Congcong Jia, Beijing (CN); Lei Chen, Beijing (CN); and Kun Ma, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/768,265
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed May 21, 2021, PCT No. PCT/CN2021/095150
§ 371(c)(1), (2) Date Apr. 12, 2022,
PCT Pub. No. WO2021/249160, PCT Pub. Date Dec. 16, 2021.
Claims priority of application No. 202010524270.8 (CN), filed on Jun. 10, 2020.
Prior Publication US 2024/0138180 A1, Apr. 25, 2024
Prior Publication US 2024/0237390 A9, Jul. 11, 2024
Int. Cl. H10K 50/18 (2023.01); C09K 11/02 (2006.01); C09K 11/06 (2006.01); H10K 50/17 (2023.01); H10K 71/12 (2023.01); H10K 85/10 (2023.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 102/00 (2023.01)
CPC H10K 50/181 (2023.02) [C09K 11/02 (2013.01); C09K 11/06 (2013.01); H10K 50/17 (2023.02); H10K 71/12 (2023.02); H10K 85/111 (2023.02); H10K 85/311 (2023.02); H10K 85/324 (2023.02); H10K 85/60 (2023.02); H10K 85/615 (2023.02); H10K 85/631 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); C09K 2211/1011 (2013.01); H10K 2102/351 (2023.02)] 18 Claims
OG exemplary drawing
 
1. An organic light-emitting diode, comprising:
an anode;
a hole injection layer, comprising a hole injection material;
a hole transport layer;
an electron blocking layer;
an organic luminescent layer, comprising a host material and a dopant material;
a hole blocking layer;
an electron transport layer; and
a cathode,
wherein a first composite layer is provided between the electron blocking layer and the organic luminescent layer, and the first composite layer comprises a material of the electron blocking layer and the host material of the organic luminescent layer;
wherein a second composite layer is provided between the hole transport layer and the electron blocking layer, and the second composite layer comprises the material of the electron blocking layer and the hole injection material; and
a content of the hole injection material in the second composite layer is higher than that in the hole injection layer.