Projector modulating a plurality of partial luminous fluxes according to imaging information by means of an electro-optical device
US6491396B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2001 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Mar 10, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/26
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to methods and systems that suppress the expansion of an illuminating luminous flux in the short-side direction of a sub-pixel and prevents a color mixture caused by leak of light to an adjacent pixel electrode. The methods and systems of the invention set the direction of polarization separation, using a polarization transforming element, as the long-side direction of a sub-pixel with respect to the directions of the short sides and the long sides of sub-pixels arranged correspondingly to a microlens. The methods and systems of the invention also make the intervals between light source images narrower in the short-side direction, using a luminous flux separation optical element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.