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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 11800801 B1

PDFFull Text
Date of Patent:
Oct. 24, 2023

Filed:

Aug. 14, 2020

Organic light-emitting device

Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Seokhwan Hong, Seoul, KR;

Myungsun Sim, Suwon-si, KR;

Seungyeon Kwak, Suwon-si, KR;

Hyun Koo, Seongnam-si, KR;

Sangdong Kim, Seongnam-si, KR;

Chul Baik, Suwon-si, KR;

Sukekazu Aratani, Hwaseong-si, KR;

Sunyoung Lee, Seoul, KR;

Sunghun Lee, Hwaseong-si, KR;

Shingo Ishihara, Suwon-si, KR;

Jeoungin Yi, Seoul, KR;

Yuri Cho, Suwon-si, KR;

Yasushi Koishikawa, Hwaseong-si, KR;

Assignee:

SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;

Attorney:

CANTOR COLBURN LLP

Primary Examiner:

Douglas J McGinty

Int. Cl.
CPC ...
H10K 85/60 (2023.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 101/40 (2023.01); H10K 101/30 (2023.01);
U.S. Cl.
CPC ...
H10K 85/6576 (2023.02); C09K 11/06 (2013.01); H10K 50/11 (2023.02); H10K 85/636 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02);
Abstract

An organic light-emitting device comprising: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer comprises an emission layer, the emission layer comprises a first host and a dopant, the dopant is an organometallic compound including platinum, the organic light-emitting device satisfies a condition of: HOMO(D)−HOMO(Host 1)≥0.2 electron volts, HOMO(D) is a highest occupied molecular orbital (HOMO) energy level of the dopant in electron volts, HOMO(Host 1) is a HOMO) energy level of the first host in electron volts, and HOMO(D) and HOMO(Host 1) are each measured using a photoelectron spectrometer in an ambient atmosphere.

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