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.

Date of Patent:
Dec. 23, 2025

Filed:

Jun. 07, 2022
Applicant:

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

Inventors:

Seungyeon Kwak, Suwon-si, KR;

Byungjoon Kang, Seoul, KR;

Hyungjun Kim, Suwon-si, KR;

Myungsun Sim, Suwon-si, KR;

Kum Hee Lee, Suwon-si, KR;

Sunghun Lee, Hwaseong-si, KR;

Byoungki Choi, Hwaseong-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 50/852 (2023.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 50/13 (2023.01); H10K 85/30 (2023.01); H10K 85/40 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 50/852 (2023.02); C09K 11/06 (2013.01); H10K 50/11 (2023.02); H10K 50/13 (2023.02); H10K 85/342 (2023.02); H10K 85/40 (2023.02); C09K 2211/1029 (2013.01); C09K 2211/1048 (2013.01); C09K 2211/185 (2013.01); H10K 2101/10 (2023.02);
Abstract

Provided are a light-emitting device and an electronic apparatus including the same. The light-emitting device includes a first electrode, a second electrode facing the first electrode, and an emission layer between the first electrode and the second electrode, wherein the first electrode is a reflective electrode, the emission layer includes i) a first emission layer, ii) a second emission layer, or a combination thereof, wherein when the first emission layer and the second emission layer are both present, then the second emission layer is located between the first emission layer and the second electrode, the first emission layer includes a first compound capable of emitting first light having a first spectrum, λP(1) is an emission peak wavelength (nm) of the first spectrum, the second emission layer includes a second compound capable of emitting second light having a second spectrum, λP(2) is an emission peak wavelength (nm) of the second spectrum, the emission layer may emit third light having a third spectrum, λP(3) is an emission peak wavelength (nm) of the third spectrum, λP(1) is less than λP(2), |λP(1)−λP(2)| is greater than 0 nm and less than or equal to 30 nm, and each of |λP(2)−λP(3)| and |λP(3)−λP(1)| is greater than or equal to 0 nm and less than or equal to 30 nm.


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