Reduction or moiré effect in pixelated rear-projection displays
US6905215B2 · kind B2 · utility
7Cited by
7References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2004 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Mar 2, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/22
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus and method for reducing the moiré effect in rear-projection displays by rotating the dark-stripe structure (711, 712) in the screen (71) 45±15 degrees relative to the displayed pixel structure. By rotating the dark-stripes (711) relative to the displayed pixels, the spatial frequency at which the moiré effect sets in can be improved by 15% to 41%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.