Generation of random non-overlapping dot patterns for light guides using molecular dynamics simulations with variable r-cut and reflective boundary techniques

Jee Gong Chang, Cheng Tai Lee, Yu Bin Fang, Chi-Chuan Hwang

研究成果: Article同行評審

12 引文 斯高帕斯(Scopus)

摘要

This paper presents a molecular dynamics (MD) scheme for the automatic generation of dot patterns for the light guides used in LCD backlight modules. Several MD computational techniques are integrated with the conventional MD scheme to enable the adjustment of the dot density in specific regions of the light guide in order to create a dot distribution with a high dot density variation and a high spatial uniformity. These techniques include the cell division technique, the variable r-cut technique, the boundary smoothing technique and the reflective boundary condition. The reflective boundary condition enables a precise control of the dot density within each cell, and is instrumental in achieving a dot distribution with both a high dot density variation and a high spatial uniformity. The performance of the proposed dot generation scheme is verified by considering the practical example of the dot pattern design of a light guide with a single LED light source located in the lower-right corner. The numerical results confirm the ability of the proposed method to achieve an even luminance condition by establishing a dot pattern whose density increases concentrically with an increasing distance from the light source.

原文English
頁(從 - 到)851-862
頁數12
期刊Computer Physics Communications
177
發行號11
DOIs
出版狀態Published - 2007 12月 1

All Science Journal Classification (ASJC) codes

  • 電腦科學應用
  • 一般物理與天文學

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