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:
Oct. 08, 2024
Filed:
Apr. 29, 2020
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H10K 50/16 (2023.01); H01L 27/146 (2006.01); H10K 50/11 (2023.01); H10K 50/818 (2023.01); H10K 59/121 (2023.01); H10K 59/65 (2023.01); H10K 85/60 (2023.01); H10K 101/40 (2023.01);
U.S. Cl.
CPC ...
H10K 50/16 (2023.02); H01L 27/14627 (2013.01); H10K 50/11 (2023.02); H10K 50/166 (2023.02); H10K 50/818 (2023.02); H10K 59/1213 (2023.02); H10K 59/65 (2023.02); H10K 85/657 (2023.02); H10K 85/615 (2023.02); H10K 85/622 (2023.02); H10K 85/626 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 2101/40 (2023.02);
Abstract
An organic light emitting device including, in sequence, an anode, a light emitting layer, a first electron transport layer, a second electron transport layer, and a cathode, wherein the second electron transport layer includes a first material and a second material different from the first material, and the first electron transport layer includes a third material and a fourth material different from the third material.