LCD comprising a light separating element including a cholesteri

Details LCD comprising a light separating element including a cholesteri LCD comprising a light separating element including a cholesteri

1995-09-14

1998-01-27

Sikes, Williams L.

Liquid crystal cells, elements and systems

Liquid crystal system

Projector including liquid crystal cell

349 62, 349175, G02F 11335, G02F 11333, G02F 113

Patent

active

057126941

ABSTRACT:
A display device having an emitter, a direct-view display screen, a light-guiding member for guiding illumination light emitted from the emitter to the direct-view display screen, a light separating element for separating the illumination light selectively into a first and second polarized light component and transmitting the first light component and reflecting the second light component, a light converting member for converting the reflected second light component to a first light component, a reflecting plate for returning the converted first light component to the light separating element, and a half-wave film for rotating the vibration direction of the first polarized light component, thereby obtaining the illumination light.

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Tai, et al: "A1.3: Flat Collimator: A Backlighting Assembly Utilizing Microprisms for High Energy Efficiency", SID 94 Applications Digest, pp. 10-13.

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