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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 12765254 B1

PDFFull Text
Date of Patent:
Oct. 13, 2026

Filed:

Aug. 11, 2023

Quantum dot complex having defined surface-bound ligand percentages and display device including the quantum dot complex

Applicant:

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

Inventors:

Seunghee Jang, Yongin-si, KR;

Jaebok Chang, Yongin-si, KR;

Juo Nam, Yongin-si, KR;

Kawon Pak, Yongin-si, KR;

Kyungsig Lee, Yongin-si, KR;

Assignee:

SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do, KR;

Attorney:

CANTOR COLBURN LLP

Primary Examiner:

Caleb E Henry

Int. Cl.
CPC ...
H10K 85/10 (2023.01); C09K 11/02 (2006.01); C09K 11/06 (2006.01); C09K 11/70 (2006.01); H10H 20/01 (2025.01); H10H 20/851 (2025.01);
U.S. Cl.
CPC ...
H10K 85/151 (2023.02); C09K 11/02 (2013.01); C09K 11/06 (2013.01); C09K 11/70 (2013.01); H10H 20/8513 (2025.01); H10H 20/8514 (2025.01); H10K 85/141 (2023.02); C09K 2211/10 (2013.01); H10H 20/0361 (2025.01);
Abstract

Embodiments provide a quantum dot complex that includes a quantum dot, and ligands bonded to a surface of the quantum dot, wherein the ligands include a first ligand including a first acid functional group, a second ligand including a second acid functional group and different from the first acid functional group, and a third ligand including a thiol group, wherein a sum of the first ligand and the second ligand contained in the ligands is in a range of 40% by weight to 45% by weight, based on a total weight of the ligands, and a content of the third ligand in the ligands is in a range of 15% by weight to 20% by weight, based on the total weight of the ligands.

Find Patent Forward Citations

Jang, Seunghee. (2026). Quantum dot complex having defined surface-bound ligand percentages and display device including the quantum dot complex (U.S. Patent No. 12765254). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12765254

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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