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.:
Date of Patent:
Mar. 03, 2026
Filed:
Sep. 28, 2022
Tcl Technology Group Corporation, Guangdong, CN;
Likuan Zhou, Guangdong, CN;
Wenxin Zou, Guangdong, CN;
TCL TECHNOLOGY GROUP CORPORATION, Huizhou, CN;
Abstract
A quantum dot film, a method for preparing the same, and a quantum dot light emitting diode are provided. The method for preparing the quantum dot film includes: providing a substrate; and depositing a mixed solution containing a quantum dot and a high molecular polymer onto the substrate, and performing annealing treatment to obtain the quantum dot film. A temperature of the annealing treatment is greater than or equal to a glass transition temperature of the high molecular polymer. The preparation method can make the position of the quantum dot in the quantum dot film rearranged, such that the quantum dot is tightly accumulated and regularly arranged in the high molecular polymer, whereby forming a flat quantum dot film. The quantum dot film obtained from the preparation method, when applied to the quantum dot light emitting device, can significantly improve the electro-optical efficiency and lifespan of the device.