logo

For the Inventor, By the Inventor

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 12630761 B1

PDFFull Text
Date of Patent:
May. 19, 2026

Filed:

May. 20, 2024

Organic electroluminescence element and electronic device

Applicant:

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

Inventors:

Takushi Shiomi, Chiyoda-ku, JP;

Toshinari Ogiwara, Chiyoda-ku, JP;

Hiromi Nakano, Chiyoda-ku, JP;

Assignee:

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

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Anthony Ho

Int. Cl.
CPC ...
C09K 11/06 (2006.01); C07D 209/86 (2006.01); C07D 405/10 (2006.01); C07D 405/14 (2006.01); C07D 491/048 (2006.01); C07D 495/04 (2006.01); H10K 50/10 (2023.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 101/20 (2023.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); C07D 209/86 (2013.01); C07D 405/10 (2013.01); C07D 405/14 (2013.01); C07D 491/048 (2013.01); C07D 495/04 (2013.01); H10K 50/10 (2023.02); H10K 85/654 (2023.02); H10K 85/657 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); C07B 2200/05 (2013.01); C09K 2211/1018 (2013.01); H10K 50/11 (2023.02); H10K 85/658 (2023.02); H10K 2101/20 (2023.02);
Abstract

An organic electroluminescence device may include: an anode; a cathode; and an emitting layer disposed between the anode and the cathode. The emitting layer may include a delayed fluorescent compound M2, a compound M3 including a deuterium atom, and a fluorescent compound M1. The compound M1 may include a boron atom. The compound M3 does not have a partial structure of formula (1C) or (2C): Yto Yeach independently being N, CR, or C bonded to another atom or another structure, at least one of Yto Ybeing N, at least one of Yto Ybeing C bonded to another atom or another structure, each R independently being H or a substituent. The singlet energy S(M2) of the compound M2 and a singlet energy S(M3) of the compound M3 may satisfy a relationship of a formula (1):(3)>(2)  (1).

Find Patent Forward Citations

Shiomi, Takushi. (2026). Organic electroluminescence element and electronic device (U.S. Patent No. 12630761). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12630761

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…