摘要
针对有限差分法和边界元法对常见液晶显示(LCD)面板配线结构进行电阻计算时存在计算精度差、时间长的问题,提出了LCD配线结构的二维边界元/解析混合电阻求解算法.通过对大规模不规则配线结构进行分析,并与规则形状进行对比,将其分割成为"长边"和"拐角"."长边"部分使用解析方法计算;"拐角"部分使用边界元方法计算,并使用将凹多边形切割成为多个凸多边形的切割算法提高计算精度.实验结果表明,该算法适用于实际的复杂LCD配线结构,在保证结果准确度的同时,计算速度比边界元法、有限差分法快1万倍以上,已被应用于LCD面板的设计验证中.
Aiming at the deficiency in accuracy and efficiency of the finite difference method （FDM） and boundary element method （BEM） when calculating the wiring resistance in a liquid crystal display （LCD） panel, a hybrid boundary element and analytical method for the resistance calculation of two- dimensional LCD wiring is proposed. The method decomposes the LCD wiring into segments of ＂long edge＂ and ＂corner＂ shapes. The analytical method is used to calculate the resistance of ＂long edge＂, while BEM is employed to calculate the resistance of ＂corner＂. A concave polygon partition method is also proposed to improve the accuracy of BEM. The experimental results show that, the hybrid method is able to calculate the resistance oI LCD wirings in actual designs accurately, with the computational speed over 10000X faster than FDM and BEM. The proposed method has been applied to the design and verification of LCD panel.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2013年第10期1566-1573,共8页
Journal of Computer-Aided Design & Computer Graphics
基金
清华大学自主科研计划
关键词
液晶显示面板
配线电阻计算
凹多边形切割
边界元算法
liquid crystal display panel
wiring resistance calculation
concave polygon partition
boundary element method
