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Numerical modeling of defects nucleation in the liquid crystal devices with inhomogeneous surface  

Lee Gi-dong (동아대학교 전자컴퓨터공학부)
Kang Bongsoon (동아대학교 전자컴퓨터공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.9, no.8, 2005 , pp. 1793-1798 More about this Journal
Abstract
We model the nucleation and motion of defects in the liquid crystal display device with inhomogeneous surface by using fast Q-tensor method, which can calculate scalar order parameter S and nucleation of the defect in the liquid crystal director field. In order to model the defect, homeotropic aligned liquid crystal cell with step inhomogeneous electrode which has a height of $1{\mu}m$ is used. From the simulation, we can observe the nucleation and line of the defect from surface inhomogeneity and the experiment is performed for confirmation.
Keywords
liquid crystal; defect; surface inhomogeneity;
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