Patent ID: 8593579

Claim:
A projection display comprising: a light source; a first light modulator modulating light from the light source on the basis of an input image signal, and generating a first image light; a second light modulator modulating the first image light on the basis of the image signal, and generating a second image light, the second modulator comprising: a liquid crystal panel modulating light on the basis of the image signal; a pair of polarizing plates provided on a light incident side and a light emitting side of the liquid crystal panel, respectively; and a wire-grid polarizing plate provided between the pair of polarizing plates, wherein the first image light passes through polarizing plate on the light incident side and passes through the wire-grid polarizing plate from the light incident side, and the second image light is emitted from the liquid crystal panel, reflected by the wire-grid polarizing plate, and passes through the polarizing plate on the light emitting side; a signal processing unit receiving the image signal as an input and outputting a monochrome image signal to the first light modulator and a primary color image signal to the second light modulator; and a projection lens projecting the second image light generated with the second light modulator.