The present invention comprises: a display module; a case in which the display module is installed; one pair of support legs connected to the case and supported by the head of a wearer; a motion sensor for sensing the motion of the head of the wearer; a load adjuster for adjusting a load to be applied from the support legs to the head of the wearer; and a control unit for controlling the load adjuster according to a sensing result of the motion sensor, thereby reducing a load to be applied to the head of the wearer during a static wearing so as to provide comfort to the wearer and increasing a load to be applied to the head of the wearer during a dynamic wearing so as to minimize shaking.