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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 12258504 B1

PDFFull Text
Date of Patent:
Mar. 25, 2025

Filed:

Jan. 08, 2024

Method for manufacturing a light emitting element including a quantum dot composition

Applicant:

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

Inventors:

Changhee Lee, Seoul, KR;

Dukki Kim, Suwon-si, KR;

Hyojin Ko, Seoul, KR;

Sehun Kim, Yongin-si, KR;

Jaehoon Kim, Seoul, KR;

Hyunmi Doh, Seoul, KR;

Yunku Jung, Cheonan-si, KR;

Jaekook Ha, Seoul, KR;

Assignee:

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

Attorney:

Womble Bond Dickinson (US) LLP

Primary Examiner:

Caleb E Henry

Int. Cl.
CPC ...
C09K 11/06 (2006.01); C07C 43/10 (2006.01); C07C 53/00 (2006.01); C07C 63/08 (2006.01); C07C 211/09 (2006.01); C07C 309/04 (2006.01); C07C 309/30 (2006.01); C07F 9/54 (2006.01); H10K 50/115 (2023.01); H10K 71/00 (2023.01); H10K 71/15 (2023.01); H10K 85/60 (2023.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); C07C 43/10 (2013.01); C07C 53/00 (2013.01); C07C 63/08 (2013.01); C07C 211/09 (2013.01); C07C 309/04 (2013.01); C07C 309/30 (2013.01); C07F 9/5407 (2013.01); C07F 9/5442 (2013.01); H10K 85/60 (2023.02); C09K 2211/10 (2013.01); C09K 2211/1007 (2013.01); H10K 50/115 (2023.02); H10K 71/00 (2023.02); H10K 71/15 (2023.02);
Abstract

A quantum dot composition includes a quantum dot, and a ligand bonded to a surface of the quantum dot, wherein the ligand includes a head portion bonded to the surface of the quantum dot and containing a polar solvent dissociative functional group, and a tail portion connected to the head portion. A quantum dot composition according to an embodiment is used to form an emission layer of a light emitting element to enhance luminous efficiency of the light emitting element including an emission layer formed through the quantum dot composition.

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