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:
Jan. 13, 2026
Filed:
Jul. 30, 2022
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong, CN;
Abstract
A method of manufacturing a quantum-dot thin film, a quantum-dot substrate, and a display panel are provided. The method includes following steps: providing a quantum-dot solution, wherein the quantum-dot solution includes a quantum-dot mixture and a solvent, the quantum-dot mixture includes a plurality of quantum dots and a plurality of quantum-dot ligands, and the quantum-dot ligands include a long-chain ligand and a short-chain ligand; providing an electrode substrate, and dripping the quantum-dot solution onto the electrode substrate; and depositing the quantum-dot mixture of the quantum-dot solution on the electrode substrate by an electrophoresis deposition method to form the quantum-dot thin film on the electrode substrate. The quantum-dot ligands having different lengths of molecular chains are used to modify the quantum dots to reduce adhesion between particles. The quantum-dot thin film manufactured by electrophoresis deposition has great shape uniformity and good surface uniformity.