Transmission type color liquid display apparatus with first and second lens layers located between a white light source and the display device
US5548349A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1994 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Dec 21, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133623
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color liquid crystal display apparatus according to the present invention includes: a transmission type liquid crystal display device including a plurality of pixels arranged in a matrix along a first direction and a second direction perpendicular to the first direction, wherein incident light is spatially modulated by selecting one of the plurality of pixels, a white light source for emitting white light; dichroic mirrors for splitting the white light emitted from the white light source into at least three bundles of rays of different wavelength bands, the bundles of rays going out from the dichroic mirrors at different angles; lenticular lens layers provided between the liquid crystal display device and the dichroic mirrors, the lenticular lens layers converging the bundles of rays led through the dichroic mirrors onto different ones of the plurality of pixels depending on the wavelength bands thereof, wherein the lenticular lens layers includes a first lenticular lens layer and a second lenticular lens layer, the first lenticular lens layer includes a plurality of first lenticular lenses extending along the first direction, and the second lenticular lens layer including a plur…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.