Title page for etd-0706107-170234


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URN etd-0706107-170234
Author Chih-Hsing Lin
Author's Email Address m943020030@student.nsysu.edu.tw
Statistics This thesis had been viewed 5352 times. Download 2482 times.
Department Mechanical and Electro-Mechanical Engineering
Year 2006
Semester 2
Degree Master
Type of Document
Language English
Title The Effect of the Integrated Design of Light Guide and Diffusion Structures on the Uniformity of the Backlight Module
Date of Defense 2007-06-22
Page Count 88
Keyword
  • backlight
  • light guide
  • v-cut
  • Abstract Recently, the novel development of light guide is V-cut light guide
    which integrate the micro-prisms on the top and bottom surface of the
    light guide. Although the V-cut light guide can use the energy of light
    source efficiently, its uniformity is lower than the traditional scattering
    dots light guide. Therefore, the purpose of this study is to improve the
    low uniformity phenomenon of V-cut light guide. First, this study designs
    three micro-structures on the bottom surface of light guide, and analyzes
    the influences of shape and geometric parameters of each micro-structure
    on the luminous flux enhancement. Then, on the top surface of light guide,
    the micro-lens are modeled which includes the scattering characteristic of
    diffuser in order to improve the backlight uniformity. It can achieve the
    effect of diffuser does through the design of scattering micro-lens, so it
    can save the cost of diffuser. Finally, the integrated design of 7 inches
    light guide and diffusion structures was simulated by using commercial
    software LightTools, and the result shows that the backlight uniformity
    can achieve 90.6%.
    Advisory Committee
  • none - chair
  • none - co-chair
  • none - co-chair
  • none - co-chair
  • Chi-Hui Chien - advisor
  • Files
  • etd-0706107-170234.pdf
  • indicate in-campus access immediately and off_campus access in a year
    Date of Submission 2007-07-06

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