Display device and game machine
US10173131B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2016 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Jul 27, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2300/023
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A display device has a display panel including an image display area in which an image is displayable, a light guide plate arranged at a back of the display panel, the light guide plate comprising a transparent material and having a first incident surface and a second incident surface, a first light source facing the first incident surface, a second light source facing the second incident surface, and a controller configured to control turning on and turning off of the first light source and the second light source and to control an image displayed on the display panel. The light guide plate includes an emission surface facing the display panel, and a plurality of first prisms arranged in an area in correspondence with the image display area on a surface opposite to the emission surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.