Disclosed is a scanning image display device for displaying an image on a plurality of display screens. The image display device includes a light source, a scanner for two-dimensionally scanning with light from the light source, and a controller which is electrically connected with the light source and the scanner. The controller controls the light source and the scanner to form an image on the surfaces to be scanned. The scanner is configured to be capable of scanning the independent plurality of scanning surfaces with the light from the light source.