Color display device with intervening lens and spatial filter or with overlapping beams of chromatically separated light between the chromatic separator and lens array
US5467206A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1994 |
| Grant date | Nov 14, 1995 |
| Priority date | — |
| Expiry date | Jul 6, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133623
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color display device comprises a source of light simultaneously emitting several ranges of chromatic components and a spatial light modulator comprising several dots, each dot comprising at least one sub-pixel per range of chromatic component to be displayed. Between the light source and the spatial light modulator there are provided at least one chromatic separator angularly separating the light of the different chromatic range along different directions, a lens focusing the light of the different chromatic ranges at distinct points or along distinct lines contained in a determined plane, at least one spatial filter located along this determined plane and selectively filtering the light of the different chromatic ranges, and an array of lenses, each enabling the focusing of the light of each chromatic range substantially on a sub-pixel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.