Display switching device, button device for game machine, and switch
US12222529B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2021 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Mar 20, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B30/27
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display switching device according to one or more embodiments may display images by switching light illumination from multiple light source positions. The device may include a lens array including multiple lenses that allow passage of light from the light source positions, a display layer including pixel regions that allow passage of light collected on the lenses included in the lens array, and a diffusion layer located opposite to the light source positions with the lens array in between to diffuse passing light. The diffusion layer optically adheres to a layer adjacent to a surface of the diffusion layer nearer the light source positions, or the diffusion layer and the layer adjacent the surface of the diffusion layer nearer the light source positions include the same material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.