Light source for a projector

Details Light source for a projector Light source for a projector

2011-05-10

2011-05-10

Healy, Brian M. (Department: 2883)

Liquid crystal cells, elements and systems

Liquid crystal system

Projector including liquid crystal cell

C349S062000

Reexamination Certificate

active

07940341

ABSTRACT:
A projector includes a plurality of illumination modules. Each illumination module includes a light source, such as a semiconductor light emitting diode, and an optical element configured to receive light from the light source and collimate the light into a beam. Light from the illumination modules is provided to a liquid crystal display panel, then a projection lens. In some embodiments, secondary optics, such as an array of Fresnel lenses or a reflective polarizer, are disposed between the illumination modules and the liquid crystal display panel. In some embodiments, the liquid crystal display panel is a low temperature polysilicon liquid crystal display.

REFERENCES:
patent: 6038005 (2000-03-01), Handschy et al.
patent: 6220714 (2001-04-01), Eguchi
patent: 6257737 (2001-07-01), Marshall et al.
patent: 6504301 (2003-01-01), Lowery
patent: 6542307 (2003-04-01), Gleckman et al.
patent: 6964489 (2005-11-01), Blume et al.
patent: 7052152 (2006-05-01), Harbers et al.
patent: 7131735 (2006-11-01), Yokoyama
patent: 7484850 (2009-02-01), Sakata et al.
patent: 2001/0048560 (2001-12-01), Sugano
patent: 1003064 (2000-05-01), None
patent: 1418765 (2004-05-01), None
patent: 10123512 (1998-05-01), None

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