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:
Jan. 07, 2025
Filed:
Dec. 11, 2020
Applicant:
Boe Technology Group Co., Ltd., Beijing, CN;
Assignee:
BOE Technology Group Co., Ltd., Beijing, CN;
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H10K 50/11 (2023.01); H10K 50/12 (2023.01); H10K 50/18 (2023.01); H10K 85/60 (2023.01); H10K 101/40 (2023.01);
U.S. Cl.
CPC ...
H10K 50/11 (2023.02); H10K 50/12 (2023.02); H10K 50/18 (2023.02); H10K 85/615 (2023.02); H10K 85/624 (2023.02); H10K 85/633 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 2101/40 (2023.02);
Abstract
Provided are an organic light emitting device and a display apparatus. An organic light emitting device includes an anode, a cathode, and an emitting layer disposed between the anode and the cathode; wherein the emitting layer includes a host material and a dopant material doped in the host material; the host material includes a first host material and a second host material, and the first host material, the second host material, the electron block layer, and the hole block layer satisfy:|HOMO-HOMO|≤0.2 eV,|LUMO-LUMO|≤0.2 eV,