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:
Dec. 10, 2024
Filed:
Apr. 27, 2021
Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;
Hideko Inoue, Kanagawa, JP;
Tomoya Yamaguchi, Kanagawa, JP;
Hiromi Seo, Kanagawa, JP;
Satoshi Seo, Kanagawa, JP;
Kunihiko Suzuki, Kanagawa, JP;
Miki Kanamoto, Kanagawa, JP;
Abstract
As a novel substance having a novel skeleton, an organometallic complex with high emission efficiency which achieves improved color purity by a reduction of half width of an emission spectrum is provided. One embodiment of the present invention is an organometallic complex in which a β-diketone and a six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom are ligands. In General Formula (G1), X represents a substituted or unsubstituted six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom. Further, Rto Reach represent a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms.