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:
Jul. 23, 2024
Filed:
Apr. 21, 2021
Coretronic Corporation, Hsin-Chu, TW;
I-Hua Chen, Hsin-Chu, TW;
Chi-Tang Hsieh, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
The invention relates to a wavelength conversion device and a manufacturing method thereof. The manufacturing method includes: mixing a fluorescent material, a binding material, and a solvent to form a mixed solution. The volume percentage concentration of the fluorescent material is about 50% to 80%, the volume percentage concentration of the binding material is 10% to 40%, and the volume percentage concentration of the solvent is 10% to 30%. The mixed solution is coated on the substrate. A heat treatment is performed on the mixed solution at a first temperature to form a wavelength conversion layer. The first temperature is higher than the boiling point of the solvent, and the wavelength conversion layer has a porosity of 10% to 30%. The wavelength conversion device manufactured by the manufacturing method of the invention has better toughness, and may provide stable optical quality and improve image brightness.