Image display device
US10816869B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2018 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Oct 3, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/31
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image display device includes a flat panel display, a lens array layer, and a microstructure dynamic optical layer. The lens array layer is located at a side of a display surface of the flat panel display, and can adjust light field. The microstructure dynamic optical layer is located at the side of the display surface of the flat panel display, and can be switched to have a microstructure function or not to have the microstructure function. When being switched to have the microstructure function, the microstructure dynamic optical layer can modulate a direction of light emitted from the flat panel display. Accordingly, the image display device can display a 3D dimensional image floating in mid-air, and enables a user to see the 3D dimensional image at an oblique viewing angle. The image display device can be used in different ways according to practical applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.