Abstract: This invention relates to a device realizing 3-D picture. A device corresponding to the invention shuts a left or a right eye alternately according to horizontal or vertical synchronizing signal and maximally overlaps a closing delay time and an opening delay time, which are generated out of the shutting response characteristic of shutters, with vertical blank or horizontal blank. Therefore, the invention enhances the quality of 3-D picture by preventing a little loss in a frame of picture and by removing, in the sequential scanning mode, the flicking effect.