Light guide plate
US10754079B1 · kind B1 · utility
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5Claims
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Assignee
Inventors
Key dates
| Filing date | Apr 30, 2019 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Apr 30, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0055
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light guide plate includes a plate body having a light exit surface, a reflection surface opposite to the light exit surface, and a light-incident surface connected between the light exit surface and the reflection surface and adapted to face a light source. The light-incident surface includes a vertical portion perpendicularly connected to the light exit surface, and a sloped portion connecting the vertical portion and the reflection surface. The sloped portion is inwardly inclined from the vertical portion towards the reflection surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.