Patent ID: 6512502
Filing Date: 2003-01-28
Classification: G09G,H04N

Abstract:
A projection display for displaying a color image formed of a plurality of color pixels, each color pixel comprising a combination of different colored sub-pixel components, the display comprising:a light source for supplying white unpolarized light to an optical path, a projection lens disposed in the optical path, first and second light valves disposed in the optical path, the first and second light valves each having a plurality of sub-pixels, each sub-pixel having an associated color filter element that passes to the sub-pixel a single fixed color component from the illuminating white light, and wherein the sub-pixels are grouped into groups of three, each group comprising a single sub-pixel from one of the first or second light valves that is overlapped with two adjacent but not overlapped sub-pixels from the other light valve, which together combine to form a color pixel of the color image for each of the color pixels of the color image, and directing means for directing the light from the white light source to the first and second light valves and for directing the respective color light components reflected from the light valves towards the projection lens which projects and magnifies the color pixels onto a screen thereby forming the color image.