Patent ID: 8564872

Claim:
A microstructure optical phase shifting film for switching between 2D and 3D display, which is monocoque, comprising: a switching crystal layer including molecules of crystal with polarization films over and under the switching crystal layer wherein orientation of the molecules of the crystal is changed when a polarization voltage is applied to the polarization films; a light-phase-shifting-film base with a thickness and a rectangular shape of the top view, wherein the light-phase-shifting-film base is positioned on the switching crystal layer, and has two lateral sides with equal lengths and two longitudinal sides with equal lengths; a convex surface positioned on the light-phase-shifting-film base with a plurality of semi-cylinder like protrusions with equal heights arrayed in a constant pitch and parallel to each other, wherein the heights are measured from highest points of the semi-cylinder like protrusions to points where the semi-cylinder like protrusions intersect the light-phase-shifting-film base, and an axis of the semi-cylinder like protrusions and an alignment phase of material molecules of the microstructure optical phase shifting film form an angle.