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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 12583864 B1

PDFFull Text
Date of Patent:
Mar. 24, 2026

Filed:

Sep. 11, 2020

Organic electroluminescent element and electronic device

Applicant:

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

Inventors:

Satomi Tasaki, Tokyo, JP;

Kazuki Nishimura, Tokyo, JP;

Ryoji Maeda, Tokyo, JP;

Yuichiro Kawamura, Tokyo, JP;

Yuki Nakano, Tokyo, JP;

Assignee:

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

Attorney:

Foley & Lardner LLP

Primary Examiner:

Dawn L Garrett

Int. Cl.
CPC ...
C07D 493/04 (2006.01); C07C 13/62 (2006.01); C07C 15/28 (2006.01); C07C 15/30 (2006.01); C07C 15/38 (2006.01); C07C 255/34 (2006.01); C07C 255/51 (2006.01); C07D 211/54 (2006.01); C07D 231/56 (2006.01); C07D 241/38 (2006.01); C07D 251/24 (2006.01); C07D 307/91 (2006.01); C07D 311/82 (2006.01); C07D 333/76 (2006.01); C07D 403/10 (2006.01); C07D 403/14 (2006.01); C07D 405/10 (2006.01); C07D 405/12 (2006.01); C07D 471/06 (2006.01); C07D 487/06 (2006.01); C07D 491/04 (2006.01); C07D 491/16 (2006.01); C07D 491/22 (2006.01); C07D 495/04 (2006.01); C07D 495/22 (2006.01); C07D 519/00 (2006.01); C07F 1/02 (2006.01); C07F 5/02 (2006.01); C07F 7/08 (2006.01); H10K 50/11 (2023.01); H10K 85/40 (2023.01); H10K 85/60 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
C07D 493/04 (2013.01); C07C 13/62 (2013.01); C07C 15/28 (2013.01); C07C 15/30 (2013.01); C07C 15/38 (2013.01); C07C 255/34 (2013.01); C07C 255/51 (2013.01); C07D 211/54 (2013.01); C07D 231/56 (2013.01); C07D 241/38 (2013.01); C07D 251/24 (2013.01); C07D 307/91 (2013.01); C07D 311/82 (2013.01); C07D 333/76 (2013.01); C07D 403/10 (2013.01); C07D 403/14 (2013.01); C07D 405/10 (2013.01); C07D 405/12 (2013.01); C07D 471/06 (2013.01); C07D 487/06 (2013.01); C07D 491/04 (2013.01); C07D 491/16 (2013.01); C07D 491/22 (2013.01); C07D 495/04 (2013.01); C07D 495/22 (2013.01); C07D 519/00 (2013.01); C07F 1/02 (2013.01); C07F 5/027 (2013.01); C07F 7/081 (2013.01); C07F 7/0812 (2013.01); C07F 7/0816 (2013.01); H10K 50/11 (2023.02); H10K 85/40 (2023.02); H10K 85/615 (2023.02); H10K 85/622 (2023.02); H10K 85/623 (2023.02); H10K 85/624 (2023.02); H10K 85/631 (2023.02); H10K 85/633 (2023.02); H10K 85/636 (2023.02); H10K 85/652 (2023.02); H10K 85/654 (2023.02); H10K 85/657 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 85/658 (2023.02); C07B 2200/05 (2013.01); H10K 2101/10 (2023.02);
Abstract

An organic EL device includes a first emitting layer and a second emitting layer, in which the first emitting layer contains a first host material, the second emitting layer contains a second host material, the first and the second host material are mutually different, the first emitting layer and the second emitting layer at least contains a compound that emits fluorescence having a main peak wavelength of 500 nm or less, respectively, the compound contained in the first emitting layer and that emits fluorescence having a main peak wavelength of 500 nm or less is the same as or different from the compound contained in the second emitting layer, and a triplet energy T(H1) of the first host material and a triplet energy T(H2) of the second host material satisfy a numerical formula (Numerical Formula 1),(1)>(2)  (Numerical Formula 1).

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