IMAGE DISPLAY DEVICE, IMAGE DISPLAY SYSTEM, AND MOBILE BODY

An image display device includes a display panel, a barrier panel, and a controller. The display panel is configured to be able to form a one or plural first display region and a one or plural second display region. The barrier panel is configured to be able to form a one or plural first barrier region and a one or plural second barrier region. The controller is configured to cause the display panel to display a portion located in the one or plural first display region as one parallax image frame including two sub-frames. The controller is configured to cause the display panel to display a portion located in the one or plural second display region as plane image frames. A frame rate of sub-frames included in the parallax image frame and a frame rate of the plane image frames are configured to be the same.