There is described a method for providing auto-stereo three-dimensional
views from a plurality of points of view, the method comprising:
providing an image on a substrate made of a medium of sufficient
transparency to allow light therethrough, the image being made up of a
plurality of cells; placing a barrier screen in front of the image to
provide a parallax effect, the barrier screen consisting of an optical
arrangement providing staggered apertures through which light can pass,
each of the apertures defining a window onto one of the plurality of
cells and configured such that a view of a neighboring cell is obstructed
from all of the points of view; and illuminating the image using a light
source.