Patent ID: 6827452
Filing Date: 2004-12-07
Classification: H04N

Abstract:
An LCD projection system comprising:a light source; a polarized component for polarizing a non-polarized white light emitted from the light source to a polarized light of three primary colors; a beam splitter having a color separation lens for separating the polarized light of three primary colors into a light of two primary colors and a light of one primary color, and a reflecting mirror for reflecting the light of one primary color; a first polarization element for polarizing the light of two primary colors outputted from the color separation lens to a polarized light of two primary colors; a second polarization element for polarizing the light of one primary color outputted from the reflecting mirror to a first color light; a dichroic element for separating the polarized light of two primary colors into a second color light and a third color light; a modulator having a first LCD panel for reflecting the first color light to a first color modulating light, a second LCD panel for reflecting the second color light to a second color modulating light and a third LCD panel for reflecting the third color light to a third color modulating light; a retarder arranged between the first polarization element and the second polarization element; and a projection lens disposed adjacent to one side of the first polarization element for synthesizing the first color modulating light, the second color modulating light and the third color modulating light into a color image to be displayed on a screen.