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. 24, 2025

Filed:

Jan. 26, 2021
Applicant:

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

Inventors:

Kun Ma, Beijing, CN;

Lei Chen, Beijing, CN;

Rongrong Gao, Beijing, CN;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H10K 50/15 (2023.01); H10K 50/11 (2023.01); H10K 50/16 (2023.01); H10K 85/60 (2023.01); H10K 101/40 (2023.01);
U.S. Cl.
CPC ...
H10K 50/15 (2023.02); H10K 50/11 (2023.02); H10K 50/16 (2023.02); H10K 85/631 (2023.02); H10K 85/654 (2023.02); H10K 85/6574 (2023.02); H10K 2101/40 (2023.02);
Abstract

The present disclosure provides an organic light emitting device, including a first electrode, a second electrode and an emitting layer disposed between the first electrode and the second electrode. A hole transporting layer is disposed between the first electrode and the emitting layer. An electron transporting layer is disposed between the second electrode and the emitting layer. The ratio of the hole mobility of the hole transporting layer to the electron mobility of the electron transporting layer is about 10 to 500.


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