An image display device has a camera unit having a lens, an image sensor, and a support member that supports the lens and the image sensor; a display unit having a display screen to display an image on the display screen; and a case that accommodates the camera unit and the display unit. The device further has: a cover that covers the camera unit accommodated by the case, and encloses surroundings of the display unit accommodated by the case; and a seal member that touches part of a lens surroundings of the support member avoiding the lens, of the camera unit, the seal member being interposed between an inner wall side of the cover and the camera unit, and the seal member being shaped as a ring. The cover is one in which a part that faces the camera unit has light transmission properties.