A three-dimensional display device for displaying a three-dimensional image, including: a gaze point obtaining unit which obtains a position of a gaze point of a viewer a fusional area determination unit which determines a fusional area where binocular fusion is allowed, based on the obtained position of the gaze point a correction unit which corrects the three-dimensional image so as to suppress display of an object that is included in the three-dimensional image outside the fusional area and a display unit which displays the corrected three-dimensional image.
