A 2D/3D switchable and rotatable autostereoscopic display using a high-resistance liquid-crystal (Hi-R LC) lens array is investigated in this paper. Using high-resistance layers in an LC cell, a gradient electric-field distribution can be formed, which can provide a better lens-like shape of the refractive-index distribution. The advantages of the Hi-R LC lens array are its 2D/3D switchability, rotatability (in the horizontal and vertical directions), low driving voltage (~2 volts) and fast response (~0.6 second). In addition, the Hi-R LC lens array requires only a very simple fabrication process.
Integral imaging (InIm) has been widely investigated for three-dimensional (3-D) display applications. Aliasing due to the lenslet arrays is one of the limitations of InIm displays. In this paper, we propose a dynamic InIm display using electrically movable liquid crystal (LC) lens array to implement the moving array lenslet technique (MALT) and to eliminate the multifacet the 3-D images. The improvement of the viewing quality of dynamic InIm display is experimentally verified.
We successfully demonstrate an autostereoscopic display integrating 2D/3D switchable, 3D rotatable, and 2D/3D coexistent functions by using a multi‐functional LC lens array. The LC lens has the advantages of low driving voltages (<6Vrms) and an easy‐fabricated structure. The 3D crosstalks are 10.8% for landscape mode and 29% for portrait mode. The 2D image quality is no resolution degradation.
A plano-convex electrode is presented for a liquid crystal lens array with a hexagonal arrangement, small inactive region, 30μm cell gap and low applying voltage. It uses circular curved electrodes to provide a smooth, controllable applied potential profile across the aperture to manage the phase profile.
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