Light guide plate with asymmetrical optical microstructures
US12372705B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2024 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Mar 8, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light guide plate includes a light incident surface, a first surface connected to the light incident surface, and a plurality of optical microstructures disposed on the first surface. Each optical microstructure has a first cross-sectional profile along a first direction and a second cross-sectional profile along a second direction perpendicular to the first direction. The first cross-sectional profile is different from the second cross-sectional profile. The optical microstructures include a plurality of first optical microstructures and a plurality of second optical microstructures. The second cross-sectional profile of each first optical microstructure is different from the second cross-sectional profile of each second optical microstructure. A light source module including the light guide plate projects light into the light incident surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.