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Browsing by Author "Yu, Gu-Sheng"

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    A novel patterned diffuser for high uniform and high bright LCD backlights
    (2007)
    Lo, Yu-Chun
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    Fang, Jen-Yu
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    Huang, Yi-Pai
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    Shieh, Han-Ping D.
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    Yu, Gu-Sheng
    A novel patterned diffuser of which the diffusivity can be optimized spatially for the non-uniform luminance distribution backlights. was designed and realized. An 11% improvement in the brightness uniformity was successfully demonstrated in a 7-in side-edge backlight without sacrificing the brightness.
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    Multi-performance film (MPF) for highly efficient LCD backlights
    (2008)
    Hsieh, Jen-Chieh
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    Huang, Yi-Pai
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    Chen, Chun-Ho
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    Lo, Yu-Chun
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    Fang, Jen-Yu
    A multi-performance film (MPF) which has concave-parabolic cylinder micro prism structures was proposed to improve light coupling efficiency and to reduce lamp-Mura defect. A MPF combined light diffusion and light collecting performance as a multiple functional film. By applying the MPF wider FWHM angle, higher light output coupling efficiency, and slighter lamp-Mura were demonstrated on a 32-inch direct-type backlight.