Light guide plate, lighting apparatus, and display apparatus
US12038594B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2021 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Aug 30, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0018
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
To provide a light guide plate with reduced luminance unevenness. The light guide plate includes: a base portion having a one surface and a light incident surface disposed on one end side of the one surface and intersecting the one surface, and a plurality of convex lenses provided on a side facing the one surface of the base portion, each of the plurality of convex lenses extending in a first direction and aligned along a second direction which is substantially orthogonal to the first direction, where the base portion includes at least a first region relatively close to the light incident surface and a second region relatively far from the light incident surface, and where the first region is provided with a plurality of first bottom portions that are surfaces disposed between the convex lenses adjacent to each other in the second direction and inclined with respect to the first direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.