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Laser & Optoelectronics Progress, Volume. 58, Issue 11, 1114010(2021)

Design of Microstructure Fiber for Direct Down Laser Backlight of Liquid Crystal Displays

Kaifeng Shen* and Zhangqiang Wu
Author Affiliations
  • R & D Center, Shenzhen Konka Electronic Technology Co., Ltd., Shenzhen , Guangdong 518000, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (16)
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    References (12)
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    Figures & Tables(16)
    Light path diagram

    Fig. 1. Light path diagram

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    Light path diagram with the variational groove radius R

    Fig. 2. Light path diagram with the variational groove radius R

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    Light path diagram with the variational groove depth h

    Fig. 3. Light path diagram with the variational groove depth h

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    Microstructure diagram

    Fig. 4. Microstructure diagram

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    Single microstructure simulation model

    Fig. 5. Single microstructure simulation model

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    Back view of the 3×3 module structure

    Fig. 6. Back view of the 3×3 module structure

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    Front view of the module structure

    Fig. 7. Front view of the module structure

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    Effect of spherical recess radius R on light field. (a) R=0.4 mm; (b) R=0.6 mm; (c) R=0.8 mm; (d) R=1.0 mm

    Fig. 8. Effect of spherical recess radius R on light field. (a) R=0.4 mm; (b) R=0.6 mm; (c) R=0.8 mm; (d) R=1.0 mm

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    Effect of groove depth h on light field. (a) h=0.4 mm; (b) h=0.6 mm; (c) h=0.8 mm

    Fig. 9. Effect of groove depth h on light field. (a) h=0.4 mm; (b) h=0.6 mm; (c) h=0.8 mm

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    Simulated light field in 3×3 model

    Fig. 10. Simulated light field in 3×3 model

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    Simulated light field in 3×4 model

    Fig. 11. Simulated light field in 3×4 model

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    Simulated light field in 3×5 model

    Fig. 12. Simulated light field in 3×5 model

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    Simulated light field in 3×6 model

    Fig. 13. Simulated light field in 3×6 model

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    • Table 1. Effect of spherical recess radius R on light field

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      Table 1. Effect of spherical recess radius R on light field

      R /mmPeak luminance /(107 lx)Viewing angle /(°)Average luminance /(106 lx)
      HV
      0.40.5233460.75
      0.60.9123531.0
      0.81.415451.5
      1.01.913471.9

    • Table 2. Effect of groove depth h on light field

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      Table 2. Effect of groove depth h on light field

      h /mmPeak luminance /(107 lx)Viewing angle /(°)Average luminance /(106 lx)
      HV
      0.41.12480.96
      0.60.9123531.0
      0.80.6842551.5

    • Table 3. Effect of different models on light field

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      Table 3. Effect of different models on light field

      ModelPeak luminance /lxViewing angleAverage luminance /lxTotal luminous flux /lmLight efficiency /%
      H /(°)V
      3×3171868583°39′35″5673226937.8
      3×4326508584°33′35″12180487281.2
      3×5195648584°48′20″7743309751.6
      3×6197268585°1′49″8338333555.6
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    Kaifeng Shen, Zhangqiang Wu. Design of Microstructure Fiber for Direct Down Laser Backlight of Liquid Crystal Displays[J]. Laser & Optoelectronics Progress, 2021, 58(11): 1114010

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Nov. 25, 2020

    Accepted: Dec. 14, 2020

    Published Online: Jun. 7, 2021

    The Author Email: Kaifeng Shen (1074965264@qq.com)

    DOI:10.3788/LOP202158.1114010

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology