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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 12742115 B1

PDFFull Text
Date of Patent:
Sep. 22, 2026

Filed:

Mar. 18, 2021

Organoelectroluminescent device using polycyclic aromatic compounds

Applicant:

Sfc Co., Ltd, Cheongju-si, KR;

Inventors:

So-Young Shim, Cheongju-si, KR;

Se-Jin Yu, Cheongju-si, KR;

Jin-Hwi Cho, Cheongju-si, KR;

Yong-Woon Yang, Cheongju-si, KR;

Assignee:

SFC CO., LTD., Cheongju-si, KR;

Attorney:

NSIP Law

Primary Examiner:

Andrew K Bohaty

Int. Cl.
CPC ...
H01L 51/54 (2006.01); C09K 11/06 (2006.01); H10K 50/15 (2023.01); H10K 85/40 (2023.01); H10K 85/60 (2023.01); H10K 50/85 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); H10K 50/15 (2023.02); H10K 85/40 (2023.02); H10K 85/621 (2023.02); H10K 85/636 (2023.02); H10K 85/652 (2023.02); H10K 85/657 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 85/658 (2023.02); H10K 50/85 (2023.02); H10K 2102/302 (2023.02);
Abstract

An organoelectroluminescent device according to the present invention employs compounds of characteristic structures as a hole transport material and a dopant material in a hole injection layer or a hole transport layer, and in an emissive layer, respectively, and thus can be driven at a low voltage and realize highly efficient emission characteristics with excellent external quantum efficiency. Thus, the organoelectroluminescent device may be industrially advantageously used in a flexible display device, a flexible display device, a single-color or white-color flat lighting device, a single-color or shite-color flexible lighting device, and the like.

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