Design and evaluation of a large, wide-scope autostereoscopic laser display for outdoor use

Abstract

Modern autostereoscopic displays often do not meet the mandatory requirements for external use due to limitations in size, brightness, the number of 3D viewing zones, etc. The design concept for modular autostereoscopic laser displays with a wide viewing angle and a vivid luminosity, the theoretical viewing area of the 3D image reaches several thousand observers at a distance of up to 70 m is proposed herein. Each element of the image contains three laser diodes and cylindrical microlenses. To demonstrate the proposed solution, a prototype of a display on a 5×3 trixel board was developed and the optical properties of the prototype were characterized. The concept makes it possible to create a modular display without restrictions on the overall size, which is able to send information about the image to the left and right eyes of several viewers, proving the effectiveness of the proposed approach. Such displays can be used at large exhibitions, venues for air shows, walls of high-rise apartment buildings located along the highways, to attract consumers.