A study of structural parameter for non-printed light guide plate in backlight unit

• Main Authors: Yeh Hsien Tu, 杜業炫
• Other Authors: Chung Ping Liu
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/20315526638400682739

碩士 === 元智大學 === 電機工程學系 === 92 === ABSTRACT In this study, using the software to create the optical model of non-printed light guide plate and related elements. To discuss each structural parameter’s effective for luminance and uniformity of light guide plate. The structural parameters include numbers of tracing ray、radius of scattering sphere、spacing of scattering sphere、types of scattering sphere distribution and variation of radius increasing. The simulation results show one billion rays is the minimum requirement to show the characters of luminance and uniformity of light guide plate. Increasing the radius of scattering sphere or decreasing the spacing of scattering sphere in a finite region will get the positive result for the luminance and uniformity. And the region will be different depend on the initialize radius value of scattering sphere. Different type of distribution and radius increasing rate also provide valuable information for scattering sphere distribution. Although the best way for high uniformity light guide plate design didn’t be discovery in the paper, but we provide the data of effective about structural parameters for luminance and uniformity of light guide plate, which can be the reference for scattering sphere distribution of light guide plate design. To avoid other’s patent and have our own patent.