Multimedia field emission device portable projector
US5521660A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1995 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | Jun 2, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/132
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A field emission display panel 20, 80, and 90 is used as a projection system. Display panel 90 can be used as a stand-alone projector. Alternatively, display panel 20 can be placed on a base 10 of a standard overhead projection system 60 and the image can be projected by a lens 50 onto a surface separated from display 20. In yet another embodiment, a lens system 70 can be attached to display panel 80 to project the image on a surface separated from display 80. Display panels 20, 80, and 90 operate at a increased luminance to facilitate projection of the images displayed on the panels. The use of FED display panels 20, 80, and 90 facilitates a projection system which has low power consumption, is portable, and interfaces to a computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.