Image display device and projector
US7581836B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2006 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Apr 7, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3126
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image display device that displays an image by modulating a light from a light source according to display image data, includes: a first light modulation element that modulates a light emitted from the light source; and a second light modulation element that is disposed on an optical path in series with the first light modulation element and modulates a light exiting from the first light modulation element, wherein the first light modulation element and the second light modulation element are disposed in such a manner that a bright-field direction of an optical image of the first light modulation element and a bright-field direction of the second light modulation element almost coincide with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.