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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 12358883 B1

PDFFull Text
Date of Patent:
Jul. 15, 2025

Filed:

Dec. 14, 2021

Light-emitting device and electronic apparatus including the same

Applicant:

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

Inventors:

Seulong Kim, Yongin-si, KR;

Hyein Jeong, Yongin-si, KR;

Assignee:

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

Attorney:

Womble Bond Dickinson (US) LLP

Primary Examiner:

Robert S Loewe

Int. Cl.
CPC ...
H10K 50/13 (2023.01); H10K 85/40 (2023.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/12 (2023.01); H10K 50/155 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 71/00 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 85/633 (2023.02); H10K 85/40 (2023.02); H10K 85/624 (2023.02); H10K 85/626 (2023.02); H10K 85/636 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 50/11 (2023.02); H10K 50/12 (2023.02); H10K 50/13 (2023.02); H10K 50/155 (2023.02); H10K 50/16 (2023.02); H10K 50/171 (2023.02); H10K 71/00 (2023.02); H10K 2101/10 (2023.02);
Abstract

A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer including an emission layer between the first electrode and the second electrode and a hole transport region between the first electrode and the emission layer, wherein the emission layer may include a dopant, the hole transport region may include a first hole transport layer, a second hole transport layer between the first hole transport layer and the emission layer, and a third hole transport layer between the second hole transport layer and the emission layer, the first hole transport layer may include a first compound, the second hole transport layer may include a second compound, the third hole transport layer may include a third compound, and the first to third compounds may each independently be an amine-based compound, but may be different from each other.

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