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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 12433155 B1

PDFFull Text
Date of Patent:
Sep. 30, 2025

Filed:

Sep. 22, 2020

Light-emitting device and electronic apparatus including the same

Applicant:

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

Inventors:

Mikyung Kim, Yongin-si, KR;

Jaehyun Lee, Yongin-si, KR;

Jiwon Kwak, Yongin-si, KR;

Jihyun Seo, Yongin-si, KR;

Seunggak Yang, Yongin-si, KR;

Hanbyul Jang, Yongin-si, KR;

Assignee:

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

Attorney:

Womble Bond Dickinson (US) LLP

Primary Examiner:

Sean M Deguire

Int. Cl.
CPC ...
H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/155 (2023.01); H10K 50/17 (2023.01); H10K 50/18 (2023.01); H10K 50/81 (2023.01); H10K 50/82 (2023.01); H10K 101/00 (2023.01); H10K 101/30 (2023.01);
U.S. Cl.
CPC ...
H10K 85/636 (2023.02); H10K 85/633 (2023.02); H10K 85/657 (2023.02); H10K 85/6572 (2023.02); H10K 50/11 (2023.02); H10K 50/155 (2023.02); H10K 50/156 (2023.02); H10K 50/17 (2023.02); H10K 50/18 (2023.02); H10K 50/181 (2023.02); H10K 50/81 (2023.02); H10K 50/82 (2023.02); H10K 85/615 (2023.02); H10K 85/6574 (2023.02); H10K 2101/30 (2023.02); H10K 2101/90 (2023.02);
Abstract

A light-emitting device includes a hole transport region including two layers each including a Compound A group, a Compound B group, or any combination thereof, wherein the Compound A group includes one or two amine groups, and the amine group includes a fluorene moiety, a carbazole moiety, a dibenzofuran moiety, a dibenzothiophene moiety, a dibenzosilole moiety, or any combination thereof, and the Compound B group does not includes an amine group, and includes a fluorene moiety, a carbazole moiety, a dibenzofuran moiety, a dibenzothiophene moiety, a dibenzosilole moiety, or any combination thereof.

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