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Optical Engineering

Use of molecular dynamics method for dot pattern design of a thin light guide in an LED backlight
Author(s): Chuan Chen; Jee-Gong Chang; Yu-Bin Fang; Jin-Yuan Hsieh; Chi-Chuan Hwang
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Paper Abstract

We propose a molecular dynamics method dot generation scheme incorporating the periodic boundary and fixed-cell boundary geometrical conditions to generate random dot distribution on the order of several million dots for use in the base of a thin light guide. In addition, the generation scheme can be used to easily adjust the dot density at any local region from illuminance causing feedback in the optical design phase. Based on the incorporation of these two geometrical conditions, the generation of the random dots for the whole LED light guide can be simplified to just three subdomains, one domain represented by the periodic boundary condition, and the other two domains represented by the fixed-cell boundary condition. Employing these conditions significantly shortens the computational time necessary to obtain optimal random dot distribution and subsequent optical optimization on a PC using optical commercial software.

Paper Details

Date Published: 1 October 2009
PDF: 8 pages
Opt. Eng. 48(10) 104002 doi: 10.1117/1.3253682
Published in: Optical Engineering Volume 48, Issue 10
Show Author Affiliations
Chuan Chen, National Cheng Kung Univ. (Taiwan)
Jee-Gong Chang, National Ctr. for High-Performance Computing (Taiwan)
Yu-Bin Fang, National Ctr. for High-Performance Computing (Taiwan)
Jin-Yuan Hsieh, Minghsin Univ. of Science and Technology (Taiwan)
Chi-Chuan Hwang, National Cheng Kung Univ. (Taiwan)

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