The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 03, 2025

Filed:

Nov. 05, 2021
Applicant:

Boe Technology Group Co., Ltd., Beijing, CN;

Inventors:

Shu Jing, Beijing, CN;

Xiaobo Du, Beijing, CN;

Zhihui Zhang, Beijing, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); H10K 50/11 (2023.01); H10K 59/80 (2023.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 50/125 (2023.01); H10K 71/00 (2023.01); H10K 101/00 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 50/11 (2023.02); H10K 59/876 (2023.02); H10K 85/342 (2023.02); H10K 85/626 (2023.02); H10K 85/631 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 50/125 (2023.02); H10K 71/00 (2023.02); H10K 2101/10 (2023.02); H10K 2101/90 (2023.02);
Abstract

An organic light-emitting device, a manufacturing method and a display device are provided. The organic light-emitting device includes: a first electrode and a second electrode that are arranged oppositely; at least two light-emitting layers located between the first electrode and the second electrode, the at least two light-emitting layers include a first light-emitting layer and a second light-emitting layer that are stacked alternately. The first light-emitting layer is a blue light-emitting layer, the first light-emitting layer is doped with a first dopant material, and the second light-emitting layer is doped with a second dopant material. The first dopant material includes a blue light-emitting material with triplet-triplet annihilation effect, and the triplet energy level of the first dopant material is higher than the triplet energy level of the second dopant material.


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