PURPOSE: A three dimensional display apparatus is provided to supply superior three dimensional images by reducing the occurrence of a crosstalk phenomenon. CONSTITUTION: An optical plate(120) includes a plurality of segments. The segment is oriented according to a pre-set gradient and a pre-set gap. A flat display(110) is aligned with the optical plate and includes pixels. The pixels include sub-pixels. The sub-pixels are slanted oriented as much as the pre-set gradient of the segment. The pre-set gradient is in a range between 90 and 180 degrees.
