Design of a backlight module with a freeform surface by applying the Taguchi method |
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| Authors: | Yingcong Chen;Shangsheng Wen;Pengcheng Song |
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| Institution: | Yingcong Chen;Shangsheng Wen;Pengcheng Song;Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology;State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; |
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| Abstract: | A novel structure, called a "freeform surface," is integrated into a direct type light-emitting diode backlight. By applying the Taguchi method, the performance of this backlight is optimized. The Taguchi experiments are configured in L9e34 T orthogonal arrays and are simulated via Light Tool analysis software. After that, the influence of the design parameters on the luminance and uniformity are separately evaluated by analysis of variance(ANOVA). Next, the parameters are optimized, and a new backlight structure with desirable performance is designed at last. Light Tool simulation shows that this new type of backlight is just 15 mm thick and has 310.3nits luminance and 83.5% uniformity. |
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