A three-dimensional (3D) image display device enables easy recognition of a 3D image by appropriately changing the popout amount of a 3D image. The display device includes a timer setting and measuring a given time over which the popout amount of a 3D image changes, a popout amount change mode memory storing information on time dependent change of the popout amount occurring over the given time, a popout amount controller producing the popout amount for each unit time based on parallax between a plurality of images, the given time, and the time dependent change information, a changing image producer producing pairs of popout-amount-changing images from the plurality of images according to a popout amount by the unit time, a 3D image producer producing a corresponding popout-amount-changing 3D image, and a display controller.