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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.:

US 12610735 B1

PDFFull Text
Date of Patent:
Apr. 21, 2026

Filed:

Dec. 25, 2020

Organic electroluminescence device and electronic apparatus

Applicant:

Idemitsu Kosan Co.,ltd., Tokyo, JP;

Inventors:

Yongguk Lee, Sodegaura, JP;

Ryoji Maeda, Sodegaura, JP;

Yuki Nakano, Sodegaura, JP;

Hiroaki Itoi, Sodegaura, JP;

Assignee:

IDEMITSU KOSAN CO., LTD., Tokyo, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Gregory D Clark

Int. Cl.
CPC ...
H01L 51/50 (2006.01); C09K 11/02 (2006.01); C09K 11/06 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 101/00 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 85/626 (2023.02); C09K 11/02 (2013.01); C09K 11/06 (2013.01); H10K 85/60 (2023.02); H10K 85/615 (2023.02); H10K 85/633 (2023.02); H10K 85/636 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/1022 (2013.01); H10K 50/11 (2023.02); H10K 2101/10 (2023.02); H10K 2101/90 (2023.02);
Abstract

An organic electroluminescence device, comprising a cathode, an anode, and at least one emitting layer disposed between the cathode and the anode, wherein the emitting layer contains a first host material, a second host material, and a dopant material, wherein the first host material is a compound represented by the following formula (1), the second host material is a compound represented by the following formula (2), and one or more selected from the group consisting of the compound represented by the formula (1) and the compound represented by the formula (2) have at least one deuterium atom.

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