Tabletop 3D light-field display with full parallax based on direction-turning films and views-segmented voxels is demonstrated. In this system, the collimated backlight and the lenticular lens array reversely attached to an LCD panel with a resolution of 7680 pixel×4320 pixel are designed to achieve a 100° horizontal viewing angle, and the direction turning films and the holographic functional screen are applied to reconstruct 3D light-field images within a 90° frontal viewing angle. Views-segmented voxels are first proposed to separate the frontal viewing range into some disparate viewing zones according to the spatial coordinates of different viewers, then the views-segmented image coding method and the mapping function between the views-segmented voxels and sub-pixels on LCD are also deduced. Finally, after the real-time adaptive perspective correction in each viewing zone, a full parallax, high-definition tabletop 3D scene is presented to multiple viewers.
Haoxiang Dong, Xunbo Yu, Qiu Jin, Xinzhu Sang, Kuiru Wang, BinBin Yan, Xin Gao, Shujun Xing, Xudong Wen, Bin Xu. Tabletop 3D Light-Field Display with 100° Frontal Viewing Angle Based on Views-Segmented Voxels[J]. Chinese Journal of Lasers, 2022, 49(4): 0409001