High-color-gamut quantum dot lens and method for manufacturing backlight module
US12188624B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2024 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Jul 2, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B19/0061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high-color-gamut quantum dot lens and a method for manufacturing a backlight module are provided. The method includes: mixing quantum dots with an acrylic resin, carrying out mixing granulation on the quantum dots and the acrylic resin by using an internal mixer to obtain quantum dot acrylic particles, carrying out injection molding on an acrylic material containing quantum dots to obtain a quantum dot lens, and then spraying a water and oxygen resistant transparent material on the surface of the injection-molded quantum dot lens for encapsulation. Light emitted from a white LED chip irradiates onto the quantum dot lens, and an RGB independent spectrum is superposed on a common fluorescent powder spectrum by means of a quantum dot light conversion material; and the superposed spectrum obtained thereby passes through an LCD screen, and a color display screen with a high color saturation and a wide color gamut will be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.