Projection-type display device

Details Projection-type display device Projection-type display device

2007-06-21

2008-11-25

Dowling, William C. (Department: 2851)

Optics: image projectors

Miscellaneous

C353S031000, C353S101000

Reexamination Certificate

active

07455411

ABSTRACT:
A projection-type display device includes a light source, a spatial light modulation element which modulates incident light according to an applied image signal and emits the modulated light, an illumination optical system which condenses light from the light source and illuminates the spatial light modulation element, a projection lens which projects light emitted from the spatial light modulation element, and image signal correction units which divide the picture plane of the spatial light modulation element into a plurality of areas and perform correction on the image signal applied to the spatial light modulation element for each of the plurality of areas in accordance with an f number at a current zoom position of the projection lens.

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