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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 12441935 B1

PDFFull Text
Date of Patent:
Oct. 14, 2025

Filed:

Sep. 27, 2022

Organic electroluminescent device

Applicant:

Solus Advanced Materials Co., Ltd., Iksan-si, KR;

Inventors:

Tae Hyung Kim, Seongnam-si, KR;

Hocheol Park, Suwon-si, KR;

Young Bae Kim, Hwaseong-si, KR;

Chang Jun Lee, Ansan-si, KR;

Eunjung Lee, Seoul, KR;

Youngmi Beak, Yongin-si, KR;

Assignee:

SOLUS ADVANCED MATERIALS CO., LTD., Ilksan-si, KR;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Kregg T Brooks

Int. Cl.
CPC ...
C09K 11/02 (2006.01); C09K 11/06 (2006.01); H10K 50/00 (2023.01); H10K 50/11 (2023.01); H10K 50/13 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 50/18 (2023.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 101/10 (2023.01); H10K 101/30 (2023.01); H10K 101/40 (2023.01);
U.S. Cl.
CPC ...
C09K 11/025 (2013.01); C09K 11/06 (2013.01); H10K 50/00 (2023.02); H10K 85/342 (2023.02); H10K 85/622 (2023.02); H10K 85/626 (2023.02); H10K 85/654 (2023.02); H10K 85/657 (2023.02); H10K 85/6572 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/185 (2013.01); H10K 50/11 (2023.02); H10K 50/13 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/171 (2023.02); H10K 50/18 (2023.02); H10K 50/181 (2023.02); H10K 2101/10 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02);
Abstract

The present disclosure provides an organic electroluminescent device including: an anode; a cathode; and one or more organic material layers interposed between the anode and cathode and selected from the group consisting of a hole injection layer, a hole transporting layer, a light emitting layer, an electron transporting layer, and an electron injection layer, and further including a lifetime enhancement layer (LEL) between the light emitting layer and the electron transporting layer.

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