Rear projection screen and rear projection display apparatus
US7061676B2 · kind B2 · utility
2Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2004 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Apr 4, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/625
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A rear projection screen for use in a rear projection display apparatus contains a Fresnel lens sheet, a horizontal lenticular lens sheet capable of horizontally refracting the incident light, and a vertical lenticular lens sheet capable of vertically refracting the incident light, in this order from the incident side of the incident light, in which the lens center of the Fresnel lens sheet is arranged upward with respect to the mechanical center of the screen, and, in relation to this arrangement, black stripes of the vertical lenticular lens sheet are shifted with respect to the vertical lenticular lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.