High efficiency optical devices
US7147903B2 · kind B2 · utility
11Cited by
129References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2005 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Jul 11, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Optical devices such as backlight assemblies, according to the present invention include a multilayer optical film in which at least one of the layers comprises an oriented birefringent polymer. The multilayer optical film exhibits low absorptivity and can reflect light approaching at shallow angles as well as normal to the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.