DISPLAY DEVICE, METHOD FOR DRIVING SAME, AND DISPLAY SCREEN DEVICE

摘要

The present invention reduces video-quality degradation caused by a plurality of control electrodes lined up in a screen onto which video light is projected, controlling the optical state of each segment of said screen. This display device (1) has the following: a screen (21) comprising a plurality of control electrodes (27) laid out with spaces therebetween on one surface of an optical layer (25), the optical properties of which are changed by the application of voltage; a projector (11) that shines video light onto the screen (21) so as to display video; and a synchronization control unit (31) that controls the application of voltage to the plurality of control electrodes (27) and the cessation thereof over the course of a video-light scanning cycle (T), using the application of voltage to switch the segment (22) corresponding to each control electrode (27) from a non-video state to a video state. Upon video-light exposure, the synchronization control unit (31) applies voltages of the same polarity to two adjacent control electrodes (27) to control the optical state of a region (28) between the corresponding two segments (22).