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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 12150376 B1

PDFFull Text
Date of Patent:
Nov. 19, 2024

Filed:

Aug. 18, 2020

Organic light-emitting device and apparatus including the same

Applicant:

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

Inventors:

Seulong Kim, Yongin-si, KR;

Kyungsik Kim, Yongin-si, KR;

Sungwook Kim, Yongin-si, KR;

Seungjin Chu, Yongin-si, KR;

Jaeweon Hur, Yongin-si, KR;

Assignee:

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

Attorney:

Lewis Roca Rothgerber Christie LLP

Primary Examiner:

Alexander R Pagano

Int. Cl.
CPC ...
H01L 51/00 (2006.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/16 (2023.01); H10K 59/123 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 85/633 (2023.02); H10K 85/342 (2023.02); H10K 85/615 (2023.02); H10K 85/626 (2023.02); H10K 85/636 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 50/11 (2023.02); H10K 50/166 (2023.02); H10K 59/123 (2023.02); H10K 85/622 (2023.02); H10K 2101/10 (2023.02);
Abstract

An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an organic layer between the first electrode and the second electrode and comprising an emission layer; and an electron transport region between the emission layer and the second electrode, wherein the electron transport region comprises a first auxiliary layer and a second auxiliary layer, the first auxiliary layer is between the emission layer and the second auxiliary layer, the first auxiliary layer comprises a first compound, the second auxiliary layer comprises a second compound, the second compound comprises at least one π electron-depleted nitrogen-containing ring, and the organic light-emitting device satisfies equations: T1(EML)≥T1(AXL1)+0.3 eV and T1(AXL2)≥T1(AXL1)+0.5 eV.

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