Acta Photonica Sinica, Volume. 48, Issue 5, 523001(2019)
High-resistance Liquid Crystal Lens with Low Driving Voltage
A liquid crystal lens with low driving and controllabe focal length were presented, which was driven by hollow-out driven-electrodes with high-resistance (H-r) layer to control the deflection of liquid crystal molecules according to the electric-filed distribution on the edge of driven-electrode of convention liquid crystal lens. Al-doped ZnO (AZO) transparent film, as the H-r layer of liquid crystal lens, was deposited on the surface of the layered aluminum (Al) electrode with hollow-hole arrays by magnetron sputtering and formed the top substrate with H-r layer driven-electrodes. The H-r liquid crystal lens was fabricated after the liquid crystal was sandwitched between the substrate with H-r driven-electrodes and a substrate with indium-tin-oxide common electrode. The effect of AZO H-r layer, driving voltage and working frequency on the optical properties of liquid crystal lens was studied. The experimental results show that the intereference patterns are uniformer and the focal radius are smaller when the driving voltage of 2.2 Vrms and working frequency of 130 kHz are applied to the fabricated H-r layer liquid crystal lens. In addition, the focal length of H-r liquid crystal lens can be adjusted from 4.27 mm to 2.88 mm with the driving voltages range from1.8 to 2.8 Vrms and working frequencies of 130 kHz.
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LIN Jian-pu, LIN Chao-fu, WENG Xu-yang, ZHANG Yong-ai, ZHOU Xiong-tu, GUO Tai-liang, YAN Qun. High-resistance Liquid Crystal Lens with Low Driving Voltage[J]. Acta Photonica Sinica, 2019, 48(5): 523001
Received: Jan. 24, 2019
Accepted: --
Published Online: Jun. 12, 2019
The Author Email: Jian-pu LIN (626567035@qq.com)