A trim retarder for a liquid crystal display based projection system including a light source, a
polarizer/analyzer, a liquid crystal display panel, and a projection lens, is clocked to an …

A projection display system includes a light source emitting a randomly polarized light and a
polarization recapture system including a tunnel integrator and a transmitting/reflecting …

A projection display system includes a light source, at least-one polarizer, at least one liquid
crystal panel for generating an image, and a projection lens for projecting the image. The …

Generally, the present invention relates to an apparatus for reducing astigmatism in a
projection system that is particularly well suited to reducing astigmatism in LCD projection …

Generally, the present invention relates to an apparatus for reducing astigmatism in a
projection system that is particularly well suited to reducing astigmatism in LCD projection …

[57] ABSTRACT A re? ective liquid crystal display overhead projection system. The
projection system includes a re? ective polarizer, a phase modulating liquid crystal display …

(57) ABSTRACT A projection System used in a liquid crystal display (LCD) System is
provided. The projection System has a light Source, a polarization set which further includes …

(57) ABSTRACT A projection display apparatus (10) uses a modulation optical system (200)
that includes a liquid crystal device (210) in combination with a wire grid polarization beam …

A liquid crystal display projection system for pictures that can be viewed stereoscopically,
comprising: a source of a repetitive three color sequence of light; first and second imagers …

BACKGROUND The invention relates to aligning images of a projection System, Such as a
liquid crystal display (LCD) projection System, for example. Referring to FIG. 1, a reflective …