An image display device includes an illuminator and a communicator. The illuminator is configured to send out light on a road surface around a first vehicle as an own vehicle, to display a first notification image on the road surface. The first notification image notifies information to surroundings of the first vehicle. The communicator is configured to perform inter-vehicle communication with a second vehicle other than the first vehicle. The illuminator is configured to display the first notification image on the basis of the inter-vehicle communication performed by the communicator.