Abstract
A three-dimensional display system is presented that uses phase-only distribution calculated from
polygon-based computer graphics (CG) data. For achieving a wide viewing zone, we use a time-sharing
reconstruction at different directions where the angle step is the same as the maximum diffraction angle
of a display panel. Phase-only data at each direction are calculated by the optical wave propagation of
the polygon data from the CG and the transformation of the coordinates from a polygon data space to a
display space. The numerical and experimental results showed that a viewing zone angle of 40 ° was
achieved. By adding a random phase distribution in the polygon data, binary phase distribution can
reconstruct 3D objects as well as multi-level phase distribution.
