Dynamic interference pattern generation device and a manufacturing method using the liquid crystal

The present invention relates to a dynamic interference pattern generation apparatus and a method of manufacturing the same. The dynamic interference pattern recovery apparatus of a liquid crystal layer to the liquid crystal is a second region where the first region and the liquid crystal alignment as the Mode Planar Homogeneous 90 arranged in a TN mode; A lower layer disposed on the first side of the liquid crystal layer; And a; top layer disposed on the second surface that is opposite the first surface and the liquid crystal layer. The top layer is provided with a slit common to a plurality of selected slits slit array layer is formed of micro-slits array consisting for, and the reference electrode and the upper transparent electrode layer are formed of a plurality of selection electrodes. The dynamic interference pattern generating apparatus by controlling the voltage applied to the voltage and the selection electrode is applied to the reference electrode in sequence, and outputs a plurality of interference fringes with different spatial frequencies, the interference pattern having an arbitrary spatial frequency and it characterized by a phase shift.