Patent ID: 7142725

Claim:
An image display apparatus for displaying a continuous image by using a plurality of images having an overlapping area, comprising: a plurality of displaying means for displaying the images corresponding to the plurality of image signals; interpolation arithmetic means for correcting a geometric displacement between the images displayed by said plurality of displaying means; brightness correcting means for correcting brightness of the overlapping area of the images displayed by said plurality of displaying means; and image picking-up means for picking up the images displayed by said plurality of displaying means; wherein when displaying the images, said plurality of displaying means use the plurality of image signals which are subjected to displacement correction of said interpolation arithmetic means and brightness correction of said brightness correcting means; wherein the interpolation arithmetic means detects a positional relationship between the images displayed by said plurality of displaying means based on the images picked-up by said image picking-up means, and corrects the displacement between the images obtained by said plurality of displaying means by using a correction coefficient calculated from the positional relationship; and wherein the image picking-up means picks up the images displayed by said plurality of displaying means by partially using an optical system of said plurality of displaying means.