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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 12677593 B1

PDFFull Text
Date of Patent:
Jul. 07, 2026

Filed:

Aug. 09, 2022

Nitrogen-containing fused heterocyclic compound and applications thereof

Applicant:

Ningbo Lumilan Advanced Materials Co., Ltd., Ningbo City, CN;

Inventors:

Xiangzhi Li, Ningbo City, CN;

Ye Cai, Ningbo City, CN;

Ting-Wei Wei, Ningbo City, CN;

Huanda Ding, Ningbo City, CN;

Zhi-Kuan Chen, Ningbo City, CN;

Assignee:

Ningbo Lumilan Advanced Materials Co., Ltd., Ningbo City, CN;

Attorney:

MUNCY, GEISSLER, OLDS & LOWE, P.C.

Primary Examiner:

Jay Yang

Int. Cl.
CPC ...
C07D 471/04 (2006.01); C07D 471/14 (2006.01); C07D 487/04 (2006.01); C07D 491/147 (2006.01); C07D 495/14 (2006.01); C07D 519/00 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01);
U.S. Cl.
CPC ...
H10K 85/6572 (2023.02); C07D 487/04 (2013.01); C07D 519/00 (2013.01); C09K 11/06 (2013.01); H10K 85/615 (2023.02); H10K 85/622 (2023.02); H10K 85/624 (2023.02); H10K 85/654 (2023.02); H10K 85/657 (2023.02); H10K 85/6574 (2023.02); C09K 2211/1018 (2013.01); H10K 50/11 (2023.02);
Abstract

The present invention provides a nitrogen-containing fused heterocyclic compound and applications thereof. When the nitrogen-containing fused heterocyclic compound of the present invention is used as a host material of an emitting layer of an organic light-emitting element, the organic light-emitting element has a lower driving voltage (3.8 V to 4.1 V), a higher current efficiency (15 Cd/A to 23 Cd/A or higher) and a longer service life (273 h or higher).

Find Patent Forward Citations

Li, Xiangzhi. (2026). Nitrogen-containing fused heterocyclic compound and applications thereof (U.S. Patent No. 12677593). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12677593

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

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