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Volume 39 Issue 6
Sep.  2015
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Design of net dots in laser direct writing light guide plate based on image processing technique

  • Corresponding author: LIU Xiaodong, lxdwuhan888@163.com
  • Received Date: 2014-09-12
    Accepted Date: 2014-11-03
  • In order to obtain light guide plate(LGP) with uniform surface illumination efficiently, using the design method based on gray image processing technique and using TracePro software, the model with two unilateral incident light-emitting diodes was analyzed theoretically and verified by simulation. Simulation data of output surface illumination was obtained. The results show that LGP designed by the method presented in this paper can reach 86.7% of illumination uniformity, conforming to the standard of Commission Internationale de I'Eclairage. The illumination uniformity can improved to 91.9% after modifying the gray image locally. This study is helpful for the design of LGP with high illumination uniformity more effectively.
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  • [1]

    ZHI J J,LIANG M Q, CHEN E Zh, et al. Dot-pattern design of LED light guide plate with single edge lighting[J]. China Illuminating Engineering Journal, 2012, 23(3):60-63 (in Chinese).
    [2]

    LUO J Zh, CHEN Zh, LI F L, et al. Design and simulation analysis of scattering netted dots on edge-lighting flat light guide plate[J]. Chinese Journal of Liquid Crystals and Displays, 2006, 21(3): 206-213 (in Chinese).
    [3]

    WANG H X, LI J B. Molding technologies of micro-structure on light guid plate of LCD and trends[J]. Chinese Journal of Liquid Crystals and Displays, 2012, 27(4): 486-492(in Chinese).
    [4]

    PARK S R,OH J K. Grating micro-dot patterned light guid for LED backlights[J]. Optics Express, 2007, 15(16): 2888-2899.
    [5]

    ZHAO H, FANG S P. Generation of dot patterns for light guides using ANFIS[J]. Infrared and Laser Engineering, 2009, 38(s1): 125-129 (in Chinese).
    [6]

    KANG M W, GUO K X, LIU Z L, et al. Studies on the methods of making dot patterns to distribute appropriately [J]. Journal of Guangzhou University(Nature Science Edition), 2010, 9(2): 25-29 (in Chinese).
    [7]

    HUANG Ch, JIANG Y S, SHEN Y, et al. Design of scattering netted dots on light guid plate of edge-lighting LED backlight [J]. Journal of Applied Optics, 2008, 29(5): 689-692.
    [8]

    ZHANG H B. Quality evaluation of halftone based on visual perception similarity [J]. Journal of Computer Applications, 2011, 31(10): 2750-2752 (in Chinese).
    [9]

    KATSAVOUNIDIS I, JAY KUO C C. A multiscale error diffusion technique fordigital halftoning [J]. IEEE Transactions on Image Processing, 1997, 6(3):483-490.
    [10]

    WANG Y W. The research of digital halftone [D]. Jilin: Jilin University, 2010:1-6 (in Chinese)
    [11]

    LIU Zh C, CAO P. Halftone screening and information biding algorithm based on the location of dots[J]. Journal of Beijing Information Science and Technology University, 2013, 28(6): 25-28(in Chinese).
    [12]

    SHI Y Sh, WEI W J, WANG X F. Optical characteristics of LGP for LCD[J]. Chinese Journal of Liquid Crystals and Displays, 2007, 22(4): 463-467(in Chinese).
    [13]

    JIN P, YE H. The application of lighttools in LED backlights design [J]. Advanced Display, 2010, 109(23): 9-12 (in Chinese).
    [14]

    QIONG S L, QIU M G. Research and implementation of enhancement algorithm for local image[J]. Value Engineering, 2010, 20(1): 110-111(in Chinese).
    [15]

    ZHAO L T, WU T, QIAN Q Q,et al. Research on image enhancement method based on local information[J]. Journal of Anqing Teachers College(Natural Science Edition), 2019,19(4): 59-65(in Chinese).
    [16]

    WANG W T, YAN X M, ZENG G P. Coding program design based on interactive selected region of interest[J]. Journal of South-Central University for Nationalities(Natural Science Edition), 2009, 28(3): 92-95(in Chinese).
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Design of net dots in laser direct writing light guide plate based on image processing technique

    Corresponding author: LIU Xiaodong, lxdwuhan888@163.com
  • 1. Department of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China

Abstract: In order to obtain light guide plate(LGP) with uniform surface illumination efficiently, using the design method based on gray image processing technique and using TracePro software, the model with two unilateral incident light-emitting diodes was analyzed theoretically and verified by simulation. Simulation data of output surface illumination was obtained. The results show that LGP designed by the method presented in this paper can reach 86.7% of illumination uniformity, conforming to the standard of Commission Internationale de I'Eclairage. The illumination uniformity can improved to 91.9% after modifying the gray image locally. This study is helpful for the design of LGP with high illumination uniformity more effectively.

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