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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 12630575 B1

PDFFull Text
Date of Patent:
May. 19, 2026

Filed:

May. 26, 2022

Organometallic compound and organic electroluminescent device including the same

Applicants:

Lg Display Co., Ltd., Seoul, KR;

LT Materials Co., Ltd., Yongin-si, KR;

Inventors:

Jaemin Moon, Seoul, KR;

Inbum Song, Seoul, KR;

Dohan Kim, Goyang-si, KR;

Sungjin Park, Paju-si, KR;

Yong Woo Kim, Osan-si, KR;

Seokhyeon Yu, Osan-si, KR;

Assignees:

LG DISPLAY CO., LTD., Seoul, KR;

LT MATERIALS CO., LTD., Yongin-si, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Gregory D Clark

Int. Cl.
CPC ...
H01L 51/50 (2006.01); C07C 211/54 (2006.01); C07D 209/82 (2006.01); C07D 235/18 (2006.01); C07F 1/02 (2006.01); C07F 15/00 (2006.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 50/12 (2023.01); H10K 50/13 (2023.01); H10K 50/16 (2023.01); H10K 50/165 (2023.01); H10K 50/17 (2023.01); H10K 71/16 (2023.01); H10K 77/10 (2023.01);
U.S. Cl.
CPC ...
C07F 15/0033 (2013.01); C07C 211/54 (2013.01); C07D 209/82 (2013.01); C07D 235/18 (2013.01); C07F 1/02 (2013.01); H10K 85/30 (2023.02); H10K 85/342 (2023.02); H10K 85/631 (2023.02); H10K 85/657 (2023.02); H10K 50/12 (2023.02); H10K 50/13 (2023.02); H10K 50/16 (2023.02); H10K 50/165 (2023.02); H10K 50/17 (2023.02); H10K 50/171 (2023.02); H10K 71/164 (2023.02); H10K 77/111 (2023.02);
Abstract

Disclosed is an organometallic compound represented by a following Chemical Formula I, wherein the compound is a metal complex including a central coordination metal and a main ligand binding thereto, wherein the main ligand has a structure in which a fused ring is further introduced into 2-phenylquinoline. When the organometallic compound is used as dopant of a light-emitting layer of an organic electroluminescent device, rigidity is imparted to the organometallic compound molecule such that a full width at half maximum (FWHM) is narrow and thus color purity is improved. Further, a non-luminescent recombination process is reduced such that luminous efficiency and lifespan of the organic electroluminescent device are improved. Chemical Formula I is shown below:

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