Liquid crystal display apparatus and optical device for use therein
US6256083A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1998 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Oct 8, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3102
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
For obtaining both high brightness under condition of small size and simplified structure, and for achieving suppression of increase in temperature of liquid crystal display elements and polarizing elements in a liquid crystal display apparatus, a liquid crystal display element converts light from a light source into a display picture depending on a driving signal, and an optical projection system contains a first optical element and projects a light signal toward an object of projection. A space is defined by an incident side polarizing element or the liquid crystal display element, the first optical element and a holding member, and the space is filled up with a cooling medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.