Polarization preserving projection screen with engineered pigment and method for making same
US8169699B2 · kind B2 · utility
10Cited by
6References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2010 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Dec 22, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1142
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Polarization preserving projection screens provide optimum polarization preservation for 3D viewing. The projection screens additionally provide improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed method for providing a projection screen comprises stripping an optically functional material from a carrier substrate, thus creating engineered particles from the optically functional material. The engineered particles may then be deposited on a second substrate to create a substantially homogeneous optical appearance of the projection screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.