Liquid crystal cells – elements and systems – Liquid crystal system – Projector including liquid crystal cell
Patent
1995-06-05
1999-01-12
Sikes, William L.
Liquid crystal cells, elements and systems
Liquid crystal system
Projector including liquid crystal cell
349 62, 349 95, G02F 11335
Patent
active
058596755
ABSTRACT:
A liquid crystal display has a light source unit and a liquid crystal panel unit, and includes a unit for emitting rays having wavelengths corresponding to the primary colors in respective three directions, a lens group unit provided on the light incident side of the liquid crystal panel unit; and a lens group unit provided on the light emitting side of the liquid crystal panel unit and having a focal plane disposed outside the liquid crystal panel unit. Angles of propagation directions of emitted rays of the primary colors are made different from one another by the primary-colors three direction emitting unit, the rays of the primary colors are introduced into respective picture elements corresponding to the primary colors by the panel-light incident side lens group unit, and the propagation directions of the emitted rays of the primary colors are made to substantially coincide with one another by the panel-light emitting side lens group unit.
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R. J. Wohl "Short Length Optical System" IBM Technical Disclosure Bulletin-vol. 13-No.10-Mar. 1971-p.2947.
Pennington et al. "CCD Imaging . . . Gathering Ability" IBM Tech. Discl. Bulletin -vol. 21-No.2-Jul. 1978-pp.857-858.
Duong Tai V.
Hitachi , Ltd.
Sikes William L.
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