Abstract: Techniques for three dimensional displays are described. An apparatus may comprise a first prism array having a first set of faceted prism elements arranged to optically couple with a second prism array having a second set of faceted prism elements, the first prism array and the second prism array to provide a null refractive component when the first set of faceted prism elements are in a first position relative to the second set of faceted prism elements, and a directional refractive component when the first set of faceted prism elements are in a second position relative to the second set of faceted prism elements. Other embodiments are described and claimed.