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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 12492339 B1

PDFFull Text
Date of Patent:
Dec. 09, 2025

Filed:

Jun. 22, 2022

Quantum dot film, quantum dot light-emitting diode and preparation method thereof

Applicant:

Tcl Technology Group Corporation, Huizhou, CN;

Inventors:

Zhiwen Nie, Huizhou, CN;

Wenyong Liu, Huizhou, CN;

Assignee:

TCL TECHNOLOGY GROUP CORPORATION, Huizhou, CN;

Attorney:

ANOVA LAW GROUP, PLLC

Primary Examiner:

C Melissa Koslow

Int. Cl.
CPC ...
C09K 11/88 (2006.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01); C09K 11/02 (2006.01); H10K 50/115 (2023.01); H10K 71/00 (2023.01); H10K 77/00 (2023.01);
U.S. Cl.
CPC ...
C09K 11/883 (2013.01); C09K 11/025 (2013.01); H10K 77/00 (2023.02); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01); H10K 50/115 (2023.02); H10K 71/00 (2023.02);
Abstract

A quantum dot film includes: one surface grafted with a first ammonium halide ligand; and another surface opposite to the one surface and grafted with a second ammonium halide ligand. The first ammonium halide ligand has a general structural formula: and the second ammonium halide ligand has a general structural formula: n≤12, n≤12, 12≤n≤17, 12≤n≤17, n, n, nand nare natural numbers, Yand Yare independently selected from phenyl or hydrogen, and X is halogen.

Find Patent Forward Citations

Nie, Zhiwen. (2025). Quantum dot film, quantum dot light-emitting diode and preparation method thereof (U.S. Patent No. 12492339). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12492339

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