Active video projection screen
US9792847B2 · kind B2 · utility
9Cited by
0References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2017 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Apr 19, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Instead of a monochromatic projection screen, an active projection screen is provided which varies reflectance and gray level (black to white) in synchronization with the content being shown. Groups of multiple screen pixels, which are smaller than each projected pixel from the projector, are assigned to each respective larger projection pixel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.