Various embodiments comprise light recycling films comprising an array of
parallel ridges and grooves that form prisms that selectively reflect or
transmit light. In some embodiments, the light recycling film may be used
in displays that include spatial light modulators comprising a plurality
of pixels. The light recycling film can limit the field-of-view of the
display and enhance the luminance within that field-of-view. Various
embodiments comprising multiple arrays of ridges and/or grooves can
enhance uniformity of illumination of the pixels in the spatial light
modulator and reduce Moire effects.