Liquid crystal cells – elements and systems – Liquid crystal system – Projector including liquid crystal cell
Patent
1993-07-28
1997-04-22
Sikes, William L.
Liquid crystal cells, elements and systems
Liquid crystal system
Projector including liquid crystal cell
359622, 353 31, 349 62, 349 95, G02F 11335, G03B 2100
Patent
active
056233485
ABSTRACT:
A liquid crystal display including a light source unit and a liquid crystal panel unit. The liquid crystal panel unit includes picture elements corresponding to three primary colors. The liquid crystal display includes a three-direction unit for receiving light from the light source unit, and emitting rays of the three primary colors having three respective mutually different propagation directions; a first lens group unit, disposed before the picture elements of the liquid crystal panel unit, for receiving the rays of the three primary colors from the three-direction unit, and directing rays of the three primary colors into respective ones of the picture elements corresponding to the three primary colors of the liquid crystal panel unit; and a second lens group unit, disposed after the first lens group unit and having a focal plane disposed outside the liquid crystal panel unit, for receiving rays of the three primary colors having three respective mutually different propagation directions from one of (1) the first lens group unit and (2) the picture elements of the liquid crystal panel unit, and emitting rays of the three primary colors having three respective propagation directions substantially coinciding with one another.
REFERENCES:
patent: 4686519 (1987-08-01), Yoshida et al.
patent: 5052783 (1991-10-01), Hamada
patent: 5083854 (1992-01-01), Zampolin et al.
patent: 5101279 (1992-03-01), Kurematsu et al.
patent: 5150138 (1992-09-01), Nakanishi et al.
patent: 5161042 (1992-11-01), Hamada
patent: 5187599 (1993-02-01), Nakanishi et al.
patent: 5192962 (1993-03-01), Nishida et al.
patent: 5272496 (1993-12-01), Nicolas et al.
patent: 5274480 (1993-12-01), Hirai et al.
patent: 5349453 (1994-09-01), Munakata
patent: 5355187 (1994-10-01), Ogino et al.
R. Wohl, "Short Length Optical System", IBM Technical Disclosure Bulletin, vol. 13, No. 10, Mar. 1971, p. 2947.
K. Pennington et al., "CCD Imaging Array Combining Fly's-Eye Lens with TDI for Increased Light-Gathering Ability", IBM Technical Disclosure Bulletin, vol. 21, No. 2, Jul. 1978, pp. 857-858.
Duong Tai V.
Hitachi , Ltd.
Sikes William L.
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