Patent ID: 6795132
Filing Date: 2004-09-21
Classification: H04N

Abstract:
A liquid crystal projection display adapted to process an input light beam and to provide an output light beam to a projection lens group that has an optical axis, the input light beam including first, second and third color components, the liquid crystal projection display comprising:a splitter unit adapted to receive and separate the input light beam into the first, second and third color components; first, second and third polarizers, each of which is disposed adjacent to the splitter unit so as to receive and process a respective one of the first, second and third color components, each of the first, second and third polarizers being disposed perpendicular to a propagation direction of the respective one of the first, second and third color components; first, second and third liquid crystal modulators, each of which is disposed adjacent to a respective one of the first, second and third polarizers so as to receive and be capable of modulating a respective one of the first, second and third color components; first, second and third analyzers, each of which is disposed adjacent to a respective one of the first, second and third liquid crystal modulators so as to receive and process a respective one of the first, second and third color components, each of the first, second and third analyzers being disposed perpendicular to the propagation direction of the respective one of the first, second and third color components; and a recombiner unit disposed above the splitter unit and disposed adjacent to the first, second and third analyzers so as to receive and recombine the first, second and third color components in order to generate the output light beam; each of the first, second and third liquid crystal modulators being disposed at an angle relative to the recombiner unit such that the output light beam can be provided by the recombiner unit to the projection lens group with a propagation direction that is parallel to the optical axis of the projection lens group.