Abstract
A novel time-multiplexed multi-view three-dimensional (3D) display has been implemented using a projector array to provide the image source and an angular steering-screen module to generate multiple high density horizontal views. The liquid crystal (LC)-based steering screen was specially developed to deflect light beams over a small range and operate in synchronism with the projector array with the use of a customized FPGA driver. The prototype produces vivid color 3D scenes with smooth parallax to multiple viewers. The experimental results verify the proposed multi-projection time-multiplexed multi-view 3D display method that uses a steering screen to produce dense views. Displaying both static and dynamic 3D contents is achieved in our implemented 36-view 3D display prototype. The results of crosstalk measurements are given and analyzed to evaluate the display performance.
Highlights
The current developments in information technology and computer science have driven an increasing demand for 3D displays in recent years
Prolonged viewing may lead to users’ discomfort due to accommodation/ convergence (A/C) conflict where the eyes converge at the apparent distance of an object but focus at the screen
The lower angular resolution produces a poor depth of field (DOF)
Summary
The current developments in information technology and computer science have driven an increasing demand for 3D displays in recent years. Various research has been reported where crosstalk is reduced, and the view density is increased to provide much smoother parallax This is implemented by using high frame rate spatial light modulators (SLM) combined with different special optical system designs [9,10,11,12]. Replacing the 2D SLM array with the lenticular-based 3D display panel as the image source, super multi-view 3D display with 256 views [15] was implemented with a similar optical system It is reported [16] that in this kind of super multi-view 3D display, multiple views entering one eye can overcome the A/C conflict problem to make viewing more natural and comfortable. It takes the advantage of the LC’s birefringence to control the steering rays’ directions accurately with different driving voltages Combined with this kind of steering screen, we propose a novel portable projector array-based multi-view 3D display in this paper. This approach can be directly extended to implement hundreds of views with an increase in the number of projectors
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