Illuminating device and projection type video display apparatus

Details Illuminating device and projection type video display apparatus Illuminating device and projection type video display apparatus

2005-11-08

2008-10-14

Dowling, William C. (Department: 2851)

Optics: image projectors

Reflector

Plural

C353S031000, C348S743000, C362S231000, C359S634000

Reexamination Certificate

active

07434945

ABSTRACT:
A projection type video display apparatus is provided with an LED array for emitting light in red, an LED array for emitting light in green, and an LED array for emitting light in blue. On a light-incident side of a rod integrator, time-dividing mirrors2A,2B arranged in a cross manner, for guiding the light from each LED array to an inside of the rod integrator, are arranged. Furthermore, on a light-emission side of the LED array for emitting the light in red, a time-diving mirror is arranged, and on a light-emission side of the LED array for emitting the light in blue, a time-dividing mirror is provided. Each time-dividing mirror switch either to reflect the light or to transmit the light, depending on whether or not voltage is applied thereto. At time-dividing lighting timing of the LED arrays, the time-dividing mirrors switch either to reflect the light or to transmit the light. In addition, video signals of videos of respective colors are supplied to a liquid crystal display panel in a time-dividing manner.

REFERENCES:
patent: 5619284 (1997-04-01), Magocs
patent: 6139166 (2000-10-01), Marshall et al.
patent: 6918682 (2005-07-01), Kim et al.
patent: 7070281 (2006-07-01), Kato
patent: 7237909 (2007-07-01), Yokote et al.
patent: 2005/0219468 (2005-10-01), Yoshii et al.
patent: 2005/0219478 (2005-10-01), Yoshii et al.
patent: 2006/0279701 (2006-12-01), O'Donnell et al.
patent: 10-186507 (1998-07-01), None
patent: 2002-189263 (2002-07-01), None

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