I. Introduction
2D/3D switchable display technology is a mainstream 3D display technology. People can currently watch videos with a naked 2D/3D switchable display at home. Several 2D/3D switchable display techniques have been proposed in previous studies to try and satisfy the market requirements. In 2002, A. Jacobs proposed a 3D display that could switch electrically between 2D and 3D modes [1]. Here, a switch lens made by a lens correction profile (LCP) lens and a switch cell panel could be placed in front of the base panel to provide the functionality of a 2D/3D switchable display. Although the above switch lens was compatible with the liquid crystal display (LCD) process, its structure was relatively complicated. In 2008, H.K. Hong et al. used an electrically-driven liquid crystal (LC) lens for 2D/3D switchable displays to reduce the structural complexity [2]. However, the cell gap was large and it still required a complicated electrode structure. In 2014, H. Ren et al. applied twisted nematic liquid crystal (TN-LC) cell, pattern indium tin oxide (ITO), and the concept of a parallax barrier for the LC barrier technology to reduce the requirements of the electrode devices [3]. The 2D display mode and 3D display mode could be easily switched using the TN-LC technique by controlling the voltage of the TN-LC without the complicated electrode structure. In 2009, C.W. Chen et al. proposed a high-resistance liquid crystal (HRLC) lens. The advantages of HRLC were the smooth electric-potential distribution within the LC layer under driving status and the fast switching time [4].