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A Study of Brightness and Residual Stresses Depending on Thickness of LCD Light Guide Plate  

Lee, Joong-Won (명지대학교 기계공학과대학원)
Park, Myung-Kyun (명지대학교 기계공학과)
Kim, Jung-Hoon (연세대학교 사회환경시스템공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.25, no.9, 2008 , pp. 38-44 More about this Journal
Abstract
Light guide plate is one of most important components which are composed of back light unit, affecting the quality and performance of LCD. Average brightness and uniformity are especially key factors for designing the light guide unit. These qualities are affected and controlled by the pattern being attached to the back of light guide unit. In order to obtain high brightness and uniformity the optimized pattern design is adopted for LGP. In this study, optimized molding condition for LGP with 0.4 mm thickness was obtained by using the Moldflow simulation software and the optimized pattern for better brightness uniformity was designed for the thickness of the 0.4 mm by trial and error method. The brightness was measured for the different LGP thicknesses and the residual stress analysis was performed for 0.4 mmthickness by the photoelasticity and the results are compared with 0.5 mm, 0.6 mm thickness.
Keywords
LGP; BLU (Back Light Unit); Brightness; Moldflow;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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