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:
Sep. 24, 2024
Filed:
Dec. 15, 2017
Applicant:
Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;
Inventors:
Tomoya Yamaguchi, Kanagawa, JP;
Hideko Yoshizumi, Kanagawa, JP;
Hiromitsu Kido, Kanagawa, JP;
Tatsuyoshi Takahashi, Kanagawa, JP;
Satoshi Seo, Kanagawa, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 85/60 (2023.01); C07D 491/048 (2006.01); H10K 50/11 (2023.01); H10K 101/00 (2023.01); H10K 101/10 (2023.01); H10K 101/30 (2023.01);
U.S. Cl.
CPC ...
H10K 85/657 (2023.02); C07D 491/048 (2013.01); H10K 85/6576 (2023.02); H10K 50/11 (2023.02); H10K 2101/10 (2023.02); H10K 2101/30 (2023.02); H10K 2101/90 (2023.02);
Abstract
A novel compound and a light-emitting element with high emission efficiency and a long lifetime are provided. The novel compound includes a benzofuropyrazine skeleton or a benzothienopyrazine skeleton, and each of a benzene ring and a pyrazine ring in the benzofuropyrazine skeleton or the benzothienopyrazine skeleton independently includes a substituent with a total number of carbon atoms of 6 to 100 inclusive. The light-emitting element includes the compound.