Active video projection screen coordinating grayscale values of screen with color pixels projected onto screen
US9640143B1 · kind B1 · utility
10Cited by
0References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2016 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Jan 22, 2036 |
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.