Patent ID: 7327409

Claim:
An image display system comprising: an illumination system, comprising: a light source, a color separator which separates an incident light beam according to color, and a scrolling unit, comprising plurality of spirally-arranged lens cells, which converts a rotation of the lens cell into a rectilinear motion of an area of the lens cell through which light passes; a light valve, which processes color beams, into which the light beam emitted from the illumination system is separated and which are scrolled, according to an input image signal, and which forms a color image; a polarization beam splitter, which transmits or reflects incident light beams according to polarization so that a light beam received from the illumination system advances toward the light valve and so that a light beam reflected by the light valve advances toward a projection lens unit; and at least one polarizing element, which is installed on at least one of a path of light traveling from the light source toward the polarization beam splitter and a path of light that is reflected by the light valve and travels toward the projection lens unit via the polarization beam splitter and which transmits only a light beam with a specific polarization.