Acta Optica Sinica, Volume. 42, Issue 20, 2012004(2022)

Moire Fringes Simulation in Liquid Crystal Display

Chengxiang Guo1, Qinquan Zhang2, Jiarui Ji1, Lei Yang1、*, and Hongbo Xie1
Author Affiliations
  • 1Key Laboratory of the Ministry of Education on Optoelectronic Information Technology,School of Precision Instrument and Opto-Electronics Engineering, Tianjin University,Tianjin 300072, China
  • 2Hisense Visual Technology Corporation Limited, Qingdao 266000, Shandong , China
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    Figures & Tables(23)
    Structural diagram of prism diaphragm[13]
    Diagram of human eyes at different viewing angles
    Fourier transform model of human eye imaging
    Plan block diagram of model
    Prism diaphragm model build by SolidWorks.(a) Diaphragm figure; (b) sectional view
    Simulated light path of moire fringes. (a) Light path structure; (b) ray tracing diagram
    Reception of detector
    Simulation results from different views. (a) 2.5°; (b) 10.0°; (c) 17.5°
    Simulation results under different detector distances. (a) 5.5 mm; (b) 11.5 mm; (c) 16.5 mm; (d) 26.5 mm
    Simulation results under different rotation angles. (a) 2°; (b) 5°; (c) 8°; (d) 12°
    Simulated optical path of moire fringe imaging through lens. (a) Light path structure; (b) ray tracing diagram
    Reception of detector before and after adding lens. (a) Before adding lens; (b) after adding lens
    Process of producing moire fringes. (a) Vertical fringes; (b) slanted fringes; (c) moire fringes
    Measurement diagram of moire fringes of diaphragm at different rotation angles. (a) 4.775°; (b) 2.596°;(c) 1.148°; (d) 0.547°
    Comparison between measurement result and simulation result of moire fringe in double diaphragm
    Comparison of moire fringe before and after image processing. (a) Before processing; (b) after processing
    Schematic diagram of fringe parameter solution
    Lens structure of eye model
    Point spread functions of different fields of view. (a) Field of view 0; (b) field of view 1;(c) field of view 2; (d) field of view 3
    Comparison of Moire fringes before and after convolution processing. (a) Before processing; (b) after processing
    • Table 1. Measurement results of moire fringes of diaphragm in bilayer DSP5/OCT prism

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      Table 1. Measurement results of moire fringes of diaphragm in bilayer DSP5/OCT prism

      Rotation angle /(°)Moire fringe period /mmMagnification
      0.5476.000120.0
      0.6844.00080.0
      0.9573.40068.0
      1.1482.75055.0
      1.3672.50050.0
      1.6401.66733.3
      2.5961.14322.9
      3.1420.92918.6
      4.2580.66713.3
      4.7750.50010.0
    • Table 2. Simulation results of moire fringes

      View table

      Table 2. Simulation results of moire fringes

      Rotation angle /(°)Moire fringe period /mmMagnification
      0.547733.011104.7
      0.684585.01483.5
      0.957418.01959.7
      1.148350.03650.0
      1.367294.04342.0
      1.640245.05135.0
      2.596155.05222.2
      3.142128.06218.3
      4.25895.08413.6
      4.77584.05412.0
    • Table 3. Error comparison of moire fringe calculation results

      View table

      Table 3. Error comparison of moire fringe calculation results

      Edge period of diaphragm 1 /μmEdge period of diaphragm 2 /μmRotation angle /(°)Experimental result of moire fringe period /μmTheoretical result of moire fringe period /μmDeviation /%
      2519770.9272.361.99
      2319792.2292.100.13
      23207126.28130.102.94
      2015557.3057.430.23
      2013537.2536.412.31
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    Chengxiang Guo, Qinquan Zhang, Jiarui Ji, Lei Yang, Hongbo Xie. Moire Fringes Simulation in Liquid Crystal Display[J]. Acta Optica Sinica, 2022, 42(20): 2012004

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    Paper Information

    Category: Instrumentation, Measurement and Metrology

    Received: Feb. 25, 2022

    Accepted: May. 3, 2022

    Published Online: Oct. 18, 2022

    The Author Email: Yang Lei (yanglei@tju.edu.cn)

    DOI:10.3788/AOS202242.2012004

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