Wavelength conversion element and backlight module
US12222604B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2023 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Sep 4, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A wavelength conversion element including a substrate, a blocking wall structure layer, and a wavelength conversion layer is provided. The blocking wall structure layer is disposed on a surface of the substrate and defines multiple microgrooves. Reflectivity of the blocking wall structure layer is in a range of 1% to 99%. The wavelength conversion layer is disposed in the microgrooves and includes multiple wavelength conversion particles. A height of the blocking wall structure layer along a normal direction of the surface of the substrate is greater than a height of the wavelength conversion layer along the normal direction of the surface of the substrate. A backlight module adopting the wavelength conversion element is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.