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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 12279519 B1

PDFFull Text
Date of Patent:
Apr. 14, 2025

Filed:

Aug. 18, 2020

Organic electroluminescence device

Applicant:

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

Inventors:

Hyejin Jung, Hwaseong-si, KR;

Minje Kim, Suwon-si, KR;

Eung Do Kim, Seoul, KR;

Hyunyoung Kim, Yongin-si, KR;

Hyojeong Kim, Hwaseong-si, KR;

Hyosup Shin, Hwaseong-si, KR;

Seokgyu Yoon, Hwaseong-si, KR;

Youngki Lee, Asan-si, KR;

Jungsub Lee, Hwaseong-si, KR;

Jiyoung Lee, Hwaseong-si, KR;

Kunwook Cho, Seoul, KR;

Hyeon Gu Cho, Yongin-si, KR;

Minsoo Choi, Hwaseong-si, KR;

Youngeun Choi, Jeonju-si, KR;

Hyein Jeong, Suwon-si, KR;

Assignee:

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

Attorney:

Womble Bond Dickinson (US) LLP

Primary Examiner:

Robert S Loewe

Int. Cl.
CPC ...
H01L 51/00 (2005.12); H10K 85/30 (2022.12); H10K 85/40 (2022.12); H10K 85/60 (2022.12); H10K 50/11 (2022.12); H10K 50/12 (2022.12); H10K 101/10 (2022.12);
U.S. Cl.
CPC ...
H10K 85/40 (2023.01); H10K 85/322 (2023.01); H10K 85/342 (2023.01); H10K 85/346 (2023.01); H10K 85/654 (2023.01); H10K 85/6572 (2023.01); H10K 85/6574 (2023.01); H10K 85/6576 (2023.01); H10K 50/11 (2023.01); H10K 50/12 (2023.01); H10K 2101/10 (2023.01);
Abstract

An organic electroluminescence device of an embodiment includes a first electrode, a second electrode on the first electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a first host and a second host which are different from each other, a first dopant including an organic metal complex containing Ir, Ru, Rh, Pt, Pd, Cu, or Os as a central metal atom, and a second dopant represented by Formula D-2 below, and thereby the organic electroluminescence device may exhibit high luminous efficiency and long service life characteristics.

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