用于集成成像3D显示的模式控制型液晶微透镜阵列

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关键词：集成成像；液晶微透镜阵列;COMSOLMultiphysics;高阻抗层;PEDOT ∵ PSS 中图分类号： O753+ .2;TN27 文献标识码：A doi：10.37188/CJLCD.2025-0103 CSTR：32172.14.CJLCD.2025-0103

Abstract： Liquid crystal lenses have the advantages ofcompact structure，high integration， and adjustable focal length. This article proposes a method for preparing a liquid crystal micro lens array （LCMLA）with modal control for integrated imaging 3D display. Firstly，the influence of voltage amplitude and frequency on the potential distribution of liquid crystal lenses without and with high resistance layers was analyzed using simulation software COMSOL Multiphysics. Secondly，a transparent high resistance layer of polymer poly （ 3，4 -ethylenedioxythiophene） ： polystyrene sulfonate（PEDOT ∵ PSS） and polyvinyl alcohol （PVA）was fabricated on a copper circular hole array electrode. And a comparative experiment was conducted to verify it，the experimental results show that the LCMLA without adding a high resistance layerchangesthe focal length from ∞ to 25.8mm and the response speed is 645.7 ms when the voltage changes from O to 40V at a fixed sine wave frequency of 1kHz .The LCMLA with modal control incorporating a high resistance layer can adjust the lens characteristics by changing either the amplitude or frequency of the driving voltage. When the fixed frequency is 75kHz ，the voltage changes from O to 5 V，the focal length changes from 00 to 19.5mm ，and the response speed is 621.4ms . When the fixed voltage is （20 5V ，the frequency changes from 1kHz to 75kHz ，the focal length changes from ∞ to 19.5mm ，and the response speed is 146.4ms . Applying the prepared LCMLA with modal control to integrated imaging 3D display can achieve good 3D display effect and fast switching characteristics at low voltage.

Key words： integrated imaging; liquid crystal micro lens arry； COMSOL multiphysics；high resistance layer;PEDOT：PSS

1引言

集成成像是一种真3D显示与成像技术，通过记录和再现光场的全光学信息，实现多视角、全视差的裸眼3D显示，是目前最具有商业化前景的3D显示技术之一[1-2]。（剩余14855字）