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http://dx.doi.org/10.3807/JOSK.2015.19.2.159

Simulation Study of Injection-Molded Light Guide Plates for Improving Luminance Uniformity Based on the Measured Replication Quality of Micro-Patterns for LED TV Backlight  

Joo, Byung-Yun (Department of Mechanical Engineering, Korea University of Technology and Education)
Ko, Jae-Hyeon (Department of Physics, Hallym University)
Publication Information
Journal of the Optical Society of Korea / v.19, no.2, 2015 , pp. 159-164 More about this Journal
Abstract
In the injection-molded light guide plate the replication quality, i.e. the reproduction accuracy, of micro-patterns should be high and uniform over the entire surface area. However technical difficulty in meeting the necessary replication quality arises as the plate size becomes large for TV applications. We propose a simulation technique to optimize the distribution of micro-patterns on a 55-inch injection molded light guide plate considering non-ideal replication quality of micro-patterns. The luminance uniformity could be improved by more than 16% by optimizing the pattern distribution in spite of the same replication quality.
Keywords
Light guide plate; LED; Backlight; Optical simulation;
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Times Cited By KSCI : 8  (Citation Analysis)
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