Full-parallax three-dimensional display based on light field reproduction

Light field displays can display three-dimensional (3D) images with smooth motion parallax without the use of special glasses, by reproducing light ray information from objects. Because of this feature, light field displays can be applied in a wide range of fields, and various 3D display methods based on light field reproduction have been researched and developed. These methods can be classified into two types based on binocular parallax: horizontal and full parallax. In this study, we mainly discuss the integral 3D display, Aktina Vision, and compressive light field display, which can display full-parallax 3D images while also discussing horizontal parallax display methods. The basic principles and system configurations of each method are explained, and their characteristics and problems are discussed. In addition, the latest research on techniques to improve the display characteristics of 3D images is presented, such as display methods using multiple display devices or time-division multiplexing.