Dual display
US7198372B2 · kind B2 · utility
12Cited by
11References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2003 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Dec 31, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/62
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A dual display system includes a graphic article providing a first display in a first lighting condition (such as daylight) and a projection system providing a second display in a second lighting condition (such as nighttime). In an exemplary embodiment, the graphic article is a perforated imaged film and the projection system includes a projector and a diffuser screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.