Projection-type display device

Liquid crystal cells – elements and systems – Liquid crystal system – Projector including liquid crystal cell

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

348758, 348761, 359634, G02F 11335, G02B 2710, H04N 931

Patent

active

RE0367257

ABSTRACT:
A projection-type display device having a single light source which produces light. A first dichroic mirror group receives the light and separates it into colored light. A transmissive light valve system modulates the colored light and a second dichroic mirror group synthesizes the modulated colored light. A projection system projects the synthesized colored light onto a screen.

REFERENCES:
patent: 2642487 (1953-06-01), Schroeder
patent: 3588324 (1971-06-01), Marle
patent: 3840695 (1974-10-01), Fischer
patent: 3844650 (1974-10-01), Nicholson et al.
patent: 3876287 (1975-04-01), Sprokel
patent: 3910680 (1975-10-01), Kakeda
patent: 3986022 (1976-10-01), Hyatt
patent: 4085425 (1978-04-01), Hamill
patent: 4108537 (1978-08-01), Watson et al.
patent: 4127322 (1978-11-01), Jacobson et al.
patent: 4150396 (1979-04-01), Hareng et al.
patent: 4191456 (1980-03-01), Hong et al.
patent: 4222641 (1980-09-01), Stolov
patent: 4230408 (1980-10-01), Nigg
patent: 4368963 (1983-01-01), Stolov
patent: 4425028 (1984-01-01), Gagnon et al.
patent: 4435732 (1984-03-01), Hyatt
patent: 4461542 (1984-07-01), Gagnon
patent: 4471385 (1984-09-01), Hyatt
patent: 4544237 (1985-10-01), Gagnon
patent: 4715684 (1987-12-01), Gagnon
patent: 4739396 (1988-04-01), Hyatt
Morozumi et al "B/W and Color LC Video Displays addressed by Poly Si TFT's" Society for Information Display-pp. 24-27, 1975.
Macleod, H. A., Thin-Film Optical Filters, Adam Hilger Pub, London, pp. 309-311 (1969).
Dewey, Anthony G., Projection Systems For Light Valves, Proceedings of SID, vol. 18/2, pp. 134-146 (1977).
Merchandised Liquid Crystal Pocket Color TV, Nikkei Electronics, (1984), pp. 211-240.
B/W and Color LC Video Display Addressed by Poly Si TFTs, SID International Symposium Digest of Technical Papers, pp. 156-157 (1983).
Projecting Type Display Wherein Improvement Has Been Increased in a High Quality and a Long Life, Nikkei Electronics (1977), pp. 58-91.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Projection-type display device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Projection-type display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Projection-type display device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2203577

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.