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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 12674093 B1

PDFFull Text
Date of Patent:
Jul. 07, 2026

Filed:

Mar. 18, 2021

Organoelectroluminescent device using polycyclic aromatic derivative 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 85/60 (2023.01); H10K 50/12 (2023.01); H10K 50/85 (2023.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); H10K 50/15 (2023.02); H10K 85/615 (2023.02); H10K 85/636 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/658 (2023.02); H10K 50/12 (2023.02); H10K 50/85 (2023.02);
Abstract

An organoelectroluminescent device according to the present invention can achieve low-voltage driving and high-efficiency luminous characteristics with excellent external quantum efficiency by employing compounds having a characteristic structure as a hole transport material and a dopant material in a hole injection layer or hole transport layer and a light-emitting layer respectively, and thus can be effectively used in industrial applications such as flat display devices, flexible display devices, monochrome or white flat lighting devices, and monochrome or white flexible lighting devices.

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