Viewing zone of an autostereoscopic display with a directional backlight using a convex lens array

Abstract

When a directional backlight to each eye alternates synchronously with the alternation of left-eye and right-eye images on the display panel, the viewer can see a stereoscopic image without wearing special goggles. One way to realize a directional backlight is to place a convex lens array in front of dot matrix light sources to generate collimated light. To implement this method, however, defocusing and field curvature of the lens should be taken into account. The viewing zone of an autostereoscopic display with a directional backlight using a convex lens array is analyzed based on optical simulations.