Patent ID: 7466368
Filing Date: 2008-12-16
Classification: H04N

Abstract:
1. An image projection apparatus comprising: a first reflection type liquid crystal display device for modulating and reflecting red light; a second reflection type liquid crystal display device for modulating and reflecting green light; a third reflection type liquid crystal display device for modulating and reflecting blue light, said image projection apparatus projecting colored light made of the red, green and blue lights from said first to third reflection type liquid crystal display devices; a first 1/4 wave plate provided on an optical path of the red light; a second 1/4 wave plate provided on an optical path of the green light; and a third 1/4 wave plate provided on an optical path of the blue light, a direction of a fast axis of the third 1/4 wave plate being different from a direction that minimizes leakage light of the blue light.