Display device
US10613265B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2017 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Nov 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is a display device that prevents generation of stray light and has excellent visibility. In a display device (1) that makes an image light ray enter from an end face of a light guide plate (14) and emits the image light ray, reflected or refracted by each of a plurality of emission structures (prisms 141) provided on the light guide plate, from a light exit surface (14c) of the light guide plate, a light reflection layer or a light absorption layer is formed on at least one optical surface among optical surfaces provided on the emission structure (the prism 141) except for an optical surface that reflects or refracts the image light ray.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.