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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 12274117 B1

PDFFull Text
Date of Patent:
Apr. 08, 2025

Filed:

Aug. 10, 2021

Light-emitting device and an electronic apparatus including same

Applicant:

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

Inventors:

Tsuyoshi Naijo, Yongin-si, KR;

Hyunyoung Kim, Yongin-si, KR;

Hyosup Shin, Yongin-si, KR;

Jiyoung Lee, Yongin-si, KR;

Assignee:

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

Attorney:

Womble Bond Dickinson (US) LLP

Primary Examiner:

Long Pham

Int. Cl.
CPC ...
H01L 51/50 (2006.01); H10K 50/11 (2023.01); H10K 50/18 (2023.01); H10K 85/30 (2023.01); H10K 85/40 (2023.01); H10K 85/60 (2023.01); H10K 101/00 (2023.01); H10K 101/10 (2023.01); H10K 101/30 (2023.01);
U.S. Cl.
CPC ...
H10K 50/18 (2023.02); H10K 50/11 (2023.02); H10K 85/322 (2023.02); H10K 85/342 (2023.02); H10K 85/346 (2023.02); H10K 85/40 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 2101/10 (2023.02); H10K 2101/27 (2023.02); H10K 2101/30 (2023.02); H10K 2101/90 (2023.02);
Abstract

A light-emitting device includes: a first electrode; a second electrode facing the first electrode; an interlayer located between the first electrode and the second electrode and including an emission layer; and an electron transport region located between the emission layer and the second electrode and including: a hole blocking layer; and an electron transport layer, an electron injection layer, or any combination thereof, wherein the emission layer includes a first host, a second host, a first dopant, and a second dopant, and the electron transport region includes a layer including a red dopant compound.

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