Multi-Phase Convex Lens Array for Directional Backlights to Improve Luminance Distribution of Autostereoscopic Display

Abstract

SUMMARY We realize homogenous luminance of the directional backlight for the time-division multiplexing autostereoscopic display using a convex lens array with the elemental lenses whose phase of placement in each row differs from one another. The validity of the proposed optical With the recent advances of LCD technologies, LCD panels that attain short response time have been developed, which has enabled commercialization of 3D LCD TV sets. The ad- vanced LCD technologies with high refresh rates can also be applied to autostereoscopic displays with high resolutions. Most of the conventional autostereoscopic display sys- tems are based either on parallax barrier technology or on lenticular lens technology, both of which display stereo- scopic images with lower resolutions than those of the dis- play panels. Time-division multiplexing technique with a fast response panel has enabled presentation of a stereo- scopic image with the same resolution as that of the display panel.