Display device and game machine
US11069178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2018 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Jul 24, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F13/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A display device includes a light guide plate 2 capable of displaying a plurality of patterns (21-1 to 21-9) and including an incident surface; a plurality of light sources (3-1 to 3-9) disposed opposite to the incident surface and corresponding to the plurality of patterns; a storage 5 configured to store a reference table that represents a relationship between a turn-on state number and a combination of light sources to be turned on among the plurality of light sources for each of a plurality of the turn-on state numbers; and a controller 7 configured to specify the combination of light sources to be turned on by referring to the reference table, the combination corresponding to the turn-on state number included in turn-on control information, and control turn-on and turn-off of each light source according to the combination of the light sources. The light guide plate 2 includes a plurality of prisms arrayed on one of surfaces of the light guide plate along the plurality of patterns, the plurality of prisms reflecting light toward the other surface of the light guide plate, the light being emitted from a light source corresponding to the pattern and being incident on the light gu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.