Light guide plate, light emitting device, display device and game machine
US11806606B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2019 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | Dec 18, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2013/189
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light guide plate for presenting a stereoscopic image via parallax includes: a plurality of deflectors arranged in rows parallel to an incidence surface through which light from a light source enters the light guide plate, the light totally reflecting inside the light guide plate while being guided therethrough, the plurality of deflectors including a reflection surface for reflecting and causing an emission surface to emit said light; and the reflection surfaces in a row of the plurality of deflectors are all oriented in the same direction with the orientation of the reflection surfaces changing for each row in accordance with distance from the incidence surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.