Liquid crystal projection display with complementary color dye a

Optical: systems and elements – Holographic system or element – Using a hologram as an optical element

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

359 51, 359 98, G02F 11333, H04N 931

Patent

active

053071859

ABSTRACT:
A liquid crystal projection display, having (a) a light source for producing light of at least two different primary colors; (b) an imaging element corresponding to each primary color light produced by the light source, each imaging element comprising plural pixel elements, each pixel element comprising liquid crystal composition dispersed in plural volumes in a containment medium and being independently addressable to primarily scatter light incident thereon in the absence of a sufficient electric field and to primarily transmit light incident thereon in the presence of a sufficient electric field; and (c) a lens for projecting light transmitted by each imaging element onto a screen; the liquid crystal composition in the pixel elements of the imaging element corresponding to the primary color light of longest wavelength including a pleochroic dye of a color complementary to the primary color light of longest wavelength, which pleochroic dye preferentially absorbs incident light which has not been scattered by the liquid crystal material in the absence of the sufficient electric field and transmits incident light in the presence of the sufficient electric field.

REFERENCES:
patent: 4541693 (1985-09-01), Knoll et al.
patent: 4613207 (1986-09-01), Fergason
patent: 4662720 (1987-05-01), Fergason
patent: 4838660 (1989-06-01), Fergason
patent: 4856876 (1989-08-01), Fergason
patent: 4878741 (1989-11-01), Fergason
patent: 4953953 (1990-09-01), Fergason
patent: 5016984 (1991-05-01), Fergason
patent: 5022750 (1991-06-01), Flasck
patent: 5024524 (1991-06-01), Flasck
patent: 5103327 (1992-04-01), Hirai et al.
patent: 5150232 (1992-09-01), Gunkima et al.
patent: 5206747 (1993-04-01), Wiley et al.
Huntley, IBM Tech. Disclosure Bull. 23(1), 347 (1980).

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

Liquid crystal projection display with complementary color dye a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid crystal projection display with complementary color dye a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystal projection display with complementary color dye a will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1715600

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