Television – Video display – Projection device
Patent
1994-12-21
1996-08-20
Kostak, Victor R.
Television
Video display
Projection device
348761, 359 49, 359456, 359624, H04N 574, H04N 931, G02F 11335, G03B 2160
Patent
active
055483496
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 plurality of second lenticular lenses extending along the second direction, and wherein the first lenticular lenses are arranged at a pitch which is at least three times as large as a pitch at which the plurality of pixels are arranged along the second direction, and the second lenticular lenses are arranged at a pitch which is equal to a pitch at which the plurality of pixels are arranged along the first direction.
REFERENCES:
Oikawa et al, "Distributed-Index Planar Microlens" , Applied Optics, vol. 21, No. 6, 1982, pp. 1052-1056.
Electronics Letters, "Distributed-Index Planar Microlens Array Prepared From Deep Electromigration", vol. 13, No. 17, 1981, pp. 452-454.
Hamada Hiroshi
Mizuguchi Yoshihiro
Kostak Victor R.
Miller John W.
Sharp Kabushiki Kaisha
LandOfFree
Transmission type color liquid display apparatus with first and does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transmission type color liquid display apparatus with first and , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission type color liquid display apparatus with first and will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2333539