Generating random and nonoverlapping dot patterns for liquid-crystal display backlight light guides using molecular-dynamics method
Generating random and nonoverlapping dot patterns for liquid-crystal display backlight light guides using molecular-dynamics method
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DOI：
10.1063/1.2138802
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发表时间：
2005-12
影响因子：
3.2
通讯作者：
Jee-Gong Chang;Ming-Horng Su;Cheng-Tai Lee;C. Hwang
中科院分区：
文献类型：
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作者：
Jee-Gong Chang;Ming-Horng Su;Cheng-Tai Lee;C. Hwang
本文采用分子动力学方法来产生随机点图案的光波导设计的背光系统。所提出的方法结合了各种数值技术，旨在优化点密度分布，以满足液晶显示器所需的均匀亮度要求。在所提出的算法中，总域被划分为规定数量的单元格，其点密度可以单独调整，以便根据光源的位置和类型来微调亮度条件。此外，根据每个单元的点密度，在该单元中实现可变的截断距离。这种可变r切割技术将作用在每个单元内的排斥力效应局部化，以便在整个点分布中可以实现高点密度梯度。最后，提出了一种平均力控制技术，以保证点分布在通过单元边界时的均匀性。
This paper employs the molecular-dynamics method to generate random-dot patterns for light guides designed for backlight systems. The proposed approach combines various numerical techniques and is designed to optimize the dot-density distribution in order to satisfy the uniform luminance requirements demanded by liquid-crystal displays. In the proposed algorithm, the total domain is divided into a prescribed number of cells whose dot densities can be individually adjusted in order to fine tune the luminance conditions in accordance with the light source position and type. In addition, a variable truncation distance is implemented in each cell according to the dot density of that cell. This variable r-cut technique localizes the repulsive force effects acting within each cell in order that a high-dot-density gradient can be achieved in the overall dot distribution. Finally, an average force control technique is developed to ensure the uniformity of the dot distribution as it passes across the cell boundari...