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.
Patent No.:
Date of Patent:
Mar. 25, 2025
Filed:
Aug. 07, 2020
Applicant:
Boe Technology Group Co., Ltd., Beijing, CN;
Inventors:
Haiyan Sun, Beijing, CN;
Xiaojin Zhang, Beijing, CN;
Dan Wang, Beijing, CN;
Changho Lee, Beijing, CN;
Assignee:
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 50/12 (2023.01); H10K 85/40 (2023.01); H10K 85/60 (2023.01);
U.S. Cl.
CPC ...
H10K 50/12 (2023.02); H10K 85/40 (2023.02); H10K 85/622 (2023.02); H10K 85/625 (2023.02); H10K 85/633 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02);
Abstract
Provided is a display substrate including a base substrate, an anode layer, a light-emitting layer, an electron diffusion layer, a hole block layer and a cathode layer which are sequentially stacked along a direction away from the base substrate, wherein a material of the electron diffusion layer comprises a first luminescent material, and a transport speed of holes generated by the anode layer in the electron diffusion layer is less than a transport speed of the holes in the light-emitting layer.