Provided is a display device for a vehicle such that the life of display elements can be made long even when used in a high temperature environment and, further, unpleasant sensations due to changes in brightness of display images can be prevented. A control unit (90) provides a display period (Fa) in which an illumination control unit (91) turns on light sources (11), and a display control unit (92) generates a display image (M) in display elements (30) within a frame (F) that constitutes the display image (M) on the basis of a display image signal and a non-display period (Fb) in which the illumination control unit (91) turns off all light sources (11). When the display control unit (92) changes the display period proportions (A) for mirrors (E) for the display elements (30) according to prescribed conditions, drive currents (I) and drive periods (H) for the light sources (11) are changed simultaneously such that brightness is not changed.