Dynamic integral imaging display with electrically moving array lenslet technique using liquid crystal lens.

Tai-Hsiang Jen,Han-Ping D Shieh,Xin Shen,Yi-Pai Huang,Bahram Javidi,Gang Yao

doi:10.1364/oe.23.018415

Abstract

Integral imaging (InIm) has been widely investigated for three-dimensional (3-D) display applications. Aliasing due to the lenslet arrays is one of the limitations of InIm displays. In this paper, we propose a dynamic InIm display using electrically movable liquid crystal (LC) lens array to implement the moving array lenslet technique (MALT) and to eliminate the multifacet the 3-D images. The improvement of the viewing quality of dynamic InIm display is experimentally verified.

Highlights

Integral imaging (InIm) technologies have been widely investigated for three-dimensional (3D) sensing, visualization and information processing [1,2,3,4,5,6,7]
The movable liquid crystal (LC) lens array was fixed on the motorized translation stage, and we adjusted the LC lens array by the electrical translation stage to accurately align to the elemental images (EIs) displayed by the smartphone
In order to increase the depth range of the 3-D scene throughout the real and virtual image fields, we synthesized the EIs of the letter and the dice to be reconstructed as a virtual image and a real image, respectively [20].The letter was set to be reconstructed at 60 mm behind the LC lens array, and the dice was set to be reconstructed at 20 mm in front of the LC lens array

Summary

Introduction

Integral imaging (InIm) technologies have been widely investigated for three-dimensional (3D) sensing, visualization and information processing [1,2,3,4,5,6,7]. The LC lens array has the advantage of providing sub-pitch movements of the lenslet along a horizontal, vertical, or diagonal direction with different driving conditions Such characteristic has not been achieved by conventional LC lens arrays, and it can be used for the moving array lenslet technique (MALT) in the 3-D InIm system [16,17,18]. By using the proposed LC lens array, we can realize the MALT electrically without the bulky mechanical moving device, and make a compact InIm display. This LC lens array can be combined with the widely used liquid crystal display (LCD) for glassless 3-D displays, which can be applied to many areas, such as 3-D TVs, smartphones, etc

Integral imaging with moving array lenslet technique

Electrically movable liquid crystal lens array

Experimental results

Conclusion