Abstract
In this paper, we propose a single frontal projection 2D/3D switchable display by using a polarization-dependent liquid crystal lens array (LCLA) and a polymer dispersed liquid crystal (PDLC). By simply controlling the working state of the PDLC, the 2D/3D switchable display can be achieved. When the PDLC with an applied voltage is in the transparent state, the 3D images are reconstructed by modulating the light field twice using polarization-dependent LCLA. When the PDLC without an applied voltage is in the scattering state, the system can present 2D images directly. We experimentally demonstrate a prototype of the proposed 2D/3D switchable display. The results show that our proposed system can present 2D and 3D images with high image quality and the response time of switching between different modes are 200 ms. Moreover, the proposed system is compact and simple, which is suitable for the application in cinema and home theatre.
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