Liquid crystal projection display device with mirror
US5311227A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1993 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Jan 6, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/315
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection display device comprising three projection lenses arranged in a row in a side by side relationship and having respective optical axes extending toward a screen, and three liquid crystal display panels forming images of red, green and blue color lights, the liquid crystal display panels and the projection lenses being arranged to form sets individually. A mirror is arranged between the display element and the projection lens of at least one of the sets. Accordingly, one of the display elements is arranged so as to face in a first direction and the adjacent display element so as to face in a second direction. It is thus possible to reduce the distance between the adjacent projection lenses even if the size of the liquid crystal display panels is enlarged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.