Patent ID: 7108376

Claim:
A projection display device comprising: a plurality of display elements, each display element including an effective pixel region and an image display region that is smaller than its effective pixel region and is within its effective pixel region; an illumination optical system that includes a plurality of light beams, a different one of said plurality of light beams being incident on a different one of said plurality of display elements; and a projection optical system including an optical-block-type combiner that combines the plurality of light beams after they are incident on a different one of said plurality of display elements; wherein each image display region of each display element modulates with two-dimensional image information the different one of said plurality of light beams that is incident on the display element; and the central position of the image display region of at least one of said plurality of display elements is offset from the central position of that display element's effective pixel region so that the distance between the central positions of the image display regions of at least two of the display elements, including at least one of said plurality of display elements that has the central position of its image display region offset from the central position of the effective pixel region, is less than the distance between the central positions of adjacent image display elements.