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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 12089430 B1

PDFFull Text
Date of Patent:
Sep. 10, 2024

Filed:

Feb. 24, 2021

Organic light-emitting device and apparatus including the same

Applicant:

Samsung Display Co., Ltd., Yongin-si, KR;

Inventors:

Yeongji Im, Yongin-si, KR;

Jino Lim, Yongin-si, KR;

Beomjin Kim, Yongin-si, KR;

Seunggak Yang, Yongin-si, KR;

Assignee:

Samsung Display Co., Ltd., Yongin-si, KR;

Attorney:

Lewis Roca Rothgerber Christie LLP

Primary Examiner:

Jeffrey D Washville

Int. Cl.
CPC ...
H10K 50/11 (2023.01); C09K 11/06 (2006.01); H10K 59/12 (2023.01); H10K 59/35 (2023.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 101/00 (2023.01); H10K 101/10 (2023.01); H10K 101/30 (2023.01);
U.S. Cl.
CPC ...
H10K 50/11 (2023.02); C09K 11/06 (2013.01); H10K 59/35 (2023.02); C09K 2211/1018 (2013.01); H10K 59/12 (2023.02); H10K 85/342 (2023.02); H10K 85/622 (2023.02); H10K 85/623 (2023.02); H10K 85/626 (2023.02); H10K 85/633 (2023.02); H10K 85/636 (2023.02); H10K 85/654 (2023.02); H10K 85/657 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 2101/10 (2023.02); H10K 2101/30 (2023.02); H10K 2101/90 (2023.02);
Abstract

An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer located between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a host and a dopant, the host includes a first compound and a second compound, and the first compound, the second compound, and the dopant are different from one another. Two compounds in the host included in the emission layer may have different HOMO and LUMO energy levels and may form an exciplex, and a difference between a HOMO energy level and a LUMO energy level of the exciplex (ΔE) may be greater than a difference between a HOMO energy level and a LUMO energy level of the dopant (ΔE).

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