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Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/10848

Title: Light-Emitting diode Cover Lens Design for Large-Scale Liquid Crystal Device Television Backlight
Authors: Chen, Jin-Jia;Cheng, Kai-Hung
Contributors: 電機工程學系
Keywords: Backlight;Cover lens;Genetic algorithm;Light-emitting diode;Luminance uniformity
Date: 2010-05
Issue Date: 2012-06-04T08:35:28Z
Publisher: SPIE
Abstract: We present a high-performance cover lens for light-emitting diode LED light sources to be applied to large-scale liquid crystal device television LCD-TV backlight modules. The cover lens with simple structure can redistribute light rays emitted from an LED light source to make the light distribution more extended so that the luminance uniformity of the backlight module can be increased. To gain a better performance, the parameters of the lens structure are optimized using a genetic algorithm. The simulation result shows that using the cover lens
can achieve a luminance uniformity of 94.75% and an optical efficiency of 72.29% for a 46-in LCD-TV backlight module.
Relation: Optical Engineering, 49(5): 053003
Appears in Collections:[電機工程學系] 期刊論文

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