1. A plasma display panel (PDP) display apparatus using glasses comprising a left-eye shutter and a right-eye shutter which alternately open and close in synchronization with a left-eye image and a right-eye image of a stereoscopic image, the PDP display apparatus comprising: a video processor which divides and outputs each of frames of the left-eye image and frames of the right-eye image into a plurality of sub-frames each of which have a different sustaining time when the left-eye image and the right-eye image are input; a display unit which displays an image based on the plurality of sub-frames output by the video processor; and a controller which prevents recognition of at least one sub-frame of the plurality of sub-frames based on the sustaining times of the plurality of sub-frames.