Front light source module and display apparatus
US12405415B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 31, 2023 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | Jul 31, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F9/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A front light source module is provided to include a side light source; a light guide layer with a light incident side opposite to the side light source in a first direction; and a first light adjusting layer, the first light adjusting layer and the light guide layer are stacked in a third direction, a portion of the first light adjusting layer away from the light guide layer is provided with micro-groove structures, each including: a first inclined surface and a second inclined surface opposite to each other in the first direction, the first inclined surface is configured to face the light incident sid, closer to the light incident side than the second inclined surface, angle α between the first inclined surface and a plane where a surface of the first light adjusting layer away from the light guide layer is located is in a range from 26° to 42°.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.