UNASSISTED STEREOSCOPIC DISPLAY DEVICE USING DIRECTIONAL BACKLIGHT STRUCTURE

An unassisted stereoscopic display device using a directional backlight structure. A directional backlight module (M), a human eye position tracking module (7) and a control interface module are used to enable a flat display screen (6) for common images to produce a stereographic display effect. The directional backlight module comprises a directional optical assembly (9) and an addressable optical engine. According to a time-division principle, the flat display screen (6) alternately displays left and right images viewed by the left and right eyes of a viewer. A video field synchronization time sequence is used to control an on-off time sequence of light-emitting units (10) of the addressable optical engine, and when the left image is displayed, only the light-emitting unit corresponding to the left eye of the viewer is lightened, and when the right image is displayed, only the light-emitting unit corresponding to the right eye of the viewer is lightened. By means of the directional optical assembly (9), a v