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:
Jan. 23, 2024

Filed:

Feb. 09, 2021
Applicants:

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

Research & Business Foundation Sungkyunkwan University, Suwon-si, KR;

Inventors:

Minki Nam, Incheon, KR;

Sungwoon Kim, Hwaseong-si, KR;

Yunhyuk Ko, Asan-si, KR;

Wan Ki Bae, Suwon-si, KR;

Sooho Lee, Hwaseong-si, KR;

Byeong Guk Jeong, Suwon-si, KR;

Yunku Jung, Cheonan-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 50/115 (2023.01); C09K 11/88 (2006.01); C09K 11/08 (2006.01); B82Y 40/00 (2011.01); B82Y 20/00 (2011.01);
U.S. Cl.
CPC ...
H10K 50/115 (2023.02); C09K 11/0883 (2013.01); C09K 11/883 (2013.01); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01);
Abstract

A quantum dot includes a core and a plurality of shell layers surrounding the core. The core has a band gap less than that of the outermost shell layer, and the outermost shell layer has a band gap less than that of a second shell layer. Thus, a light emitting device including the quantum dot according to an embodiment may have an improved lifespan of the device and excellent luminous efficiency characteristics.


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