an image display apparatus for displaying image signals of a form of packets incorporating display position information includes a combination of unit display devices so as to acquire translational objectivity . each of the unit display devices including a receiving part for receiving image signals , a processing part for dividing input image signals into those falling inside and those falling outside a range for display or those subject to or those not subject to display based on the display position information and serving to process display positions of the image signals falling outside the range for display or not subject to display , an output part for outputting the processed image signals along an axis of translational objectivity to a subsequent unit display device , and a display part for displaying the images falling in the range for display , the image display apparatus displaying the image signals as a whole , with the image signals processed sequentially with the unit display devices .