A privacy screen for a display (e.g., a LCD) includes having a polarizing
film and a birefringent film is described. The privacy screen transmits
substantial amounts of light emanating from the display in an orthogonal
(or near-orthogonal) direction while not transmitting substantial amounts
of horizontal, non-orthogonal light emanating from the display. In this
manner, a privacy effect results in that the display is viewable by
someone only when that someone is essentially directly in front of the
display.