High-Appearance Image Generation by VGA-Resolution 72-Directional Display

Abstract

The appearances of objects,such as glare and transparency,are the results of the reflection and the refraction of rays.The high-density directional display,which was originally developed to realize a natural 3D display,precisely controls the ray directions so that it can reproduce appearances of objects.In this study,the high-density directional display which has the resolution of 640×400 and emits rays in 72 different horizontal directions with the angle pitch of 0.38°was constructed.Two 72-directional displays having the resolution of 320×400 were combined,each of which consisted of a high-resolution LCD panel(3,840×2,400) and a slanted lenticular sheet.Two images produced by the two displays were superimposed by a half mirror.A slit array was placed at the focal plane of the lenticular sheet to reduce the horizontal image crosstalk.Subjective evaluation showed that the developed display provided higher appearances and presence than conventional 2D displays.