High luminance display apparatus using LCD panel

Details High luminance display apparatus using LCD panel High luminance display apparatus using LCD panel

2005-12-01

2009-11-24

Blackman, Rochelle-Ann J (Department: 2862)

Optics: image projectors

Polarizer or interference filter

C353S033000, C353S037000, C353S082000, C353S084000, C353S094000, C348S750000, C348S758000, C359S634000, C359S638000, C359S640000, C349S009000

Reexamination Certificate

active

07621641

ABSTRACT:
A projection apparatus (10) has an LC modulator panel (60) with photoresponsive layer, segmented into at least first, second, and third portions, each spatially separated. An image writing section (120) forms a first, second, or third image within the corresponding portion of the LC modulator panel by scanning successive lines of image writing light to energize the photoresponsive layer (316). The image writing section has at least one grating electromechanical system for modulating incident emission from a narrow-band light source (70) by providing diffracted and non-diffracted orders and a scanning element for directing a line of light thus formed toward the LC modulator panel to energize the photoresponsive layer. An illumination section (130) directs first, second, and third illumination beams for modulation by the respective portions of the LC modulator panel. A polarizing beamsplitter (24r,24g,24b), associated with each portion, polarizes and directs the illumination beams toward the LC modulator panel and directs modulated light toward a projection lens (62).

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