Liquid crystal display apparatus
US5042921A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1989 |
| Grant date | Aug 27, 1991 |
| Priority date | — |
| Expiry date | Oct 23, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3167
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to effectively use light from a light source, the light from the light source is split into P-polarized light and S-polarized light by a splitter or the like. The split P-polarized light is directly incident on a liquid crystal display apparatus for displaying an image by using P-polarized light. The split S-polarized light is optically rotated by a wavelength plate or the like and converted into P-polarized light. This P-polarized light is also incident on the liquid crystal display apparatus. The liquid crystal display apparatus effectively utilizes the light from the light source and displays an image with high luminance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.