An imaging material has been developed which provides improved image
contrast, increased gain and increased viewing angle. A method for
production of the screen element is also described. The imaging material
of the invention includes a refractive optical element which redirects
incident light along a desired axis, a light transmissive focusing region
which diffuses the light along the desired axis, and a controlled
light-transmissive region which controls backscatter and increases
contrast. The refractive optical element desirably includes an active
surface such as a lenticular array embossed thereon which serves to
redirect incident light as desired. The focusing region desirably is made
of a matrix material having a refractive index n.sub.1, having dispersed
throughout the matrix asymmetric micro-bodies that have a refractive
index n.sub.2 different from n.sub.1. The controlled light-transmissive
region may desirably comprise an alternating black stripe and transparent
region. Various implementations of these elements of course are
contemplated as within the scope of the invention The materials described
herein are typically used in a rear and/or front projection display
system such as those used in televisions, computers, home theatres,
information displays and simulation systems.