Microdisplay viewer
US6452577B1 · kind B1 · utility
23Cited by
25References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1999 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Nov 5, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S345/905
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display viewer has an electronic display including an array of pixel electrodes having an area of less than 400 mm2. A light source can be used to illuminate the array of pixel electrodes of a liquid crystal display in a preferred embodiment. The viewer has a lens system that enlarges an image on the display and can also include a mirror that reflects the enlarged image from the lens. A display viewer in a preferred embodiment has a planar mirror and a viewing screen. The viewing screen has a diffuser and a Fresnel lens through which the image is viewed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.