Abstract
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.
Highlights
There is interest in pursuing more realistic images on displays permitted by advancements in technology
Because 3D displays provide depth information that is lacking in 2D displays, 3D displays play an important role in next-generation display technology
Autostereoscopic 3D displays have certainly entered the mainstream in recent years, thanks to the convenience of achieving the 3D effect without wearing glasses [1,2,3,4,5,6,7,8,9,10]
Summary
There is interest in pursuing more realistic images on displays permitted by advancements in technology. An external-electrode LC lens (Fig. 2 (a)) has been proposed that utilizes a glass substrate as a high-K material to smooth the electric field, producing a gradient distribution of the electric field in the LC cell. Such a high-K material increases the operating voltage (> 50 volts). We propose an internal-electrode LC lens with 2D/3D switchable and rotatable functionality by incorporating a high-resistance (Hi-R) layer [32]. The Hi-R LC lens is coated with a high-resistance layer within the cell, permitting the establishment of a continuous electric field with a gradient profile. The proposed Hi-R LC lens array requires only a very simple layout circuit with a simple fabrication process
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