Naked Eye Three-dimensional Display System Based on Time-multiplexed Technology

TL;DR

This paper presents a multi-user 3D display system that uses time-multiplexed backlight technology with synchronized LEDs and LCDs to enable eye-tracked 3D visualization for multiple users.

Contribution

It introduces a novel spatio-temporal multiplexing approach combined with a prototype implementation for multi-user eye-tracked 3D display technology.

Findings

Successful demonstration of a prototype system

Effective synchronization of LED array and LCD panel

Potential for multi-user 3D visualization

Abstract

Our group is developing a multi-user eye-tracked 3D display, an evolution of the single-user eye-tracked 3D display that we have already successfully developed. This display utilizes a slanted lenticular setup, where multiple perspective views are shown across the viewing field. Due to the constraints of the lenticular lens parameters, identical views are repeated across the field, limiting eye tracking to a single user. However, this limitation can be addressed using spatio-temporal multiplexing, where view zone groups are presented sequentially with a high frame rate liquid crystal display (LCD) and driver, in combination with a synchronized directional light emitting diode (LED) array. In this paper, we describe the operation and results of the backlight drive electronics, where a prototype using a white LED illumination matrix, a simplified LCD panel, and a linear Fresnel lens array serves as a test bed.