An image control unit of an image display device provides, on display screens of a display unit, a captured-image-only region in which only a captured image is displayed when the display unit displays the captured image, and multiple-image regions in which the captured image or a different image that is different from the captured image is selectively displayed when the display unit displays the captured image. In an embodiment, the image control unit fixes a position of the captured-image-only region on the display screens.