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A Study on the Characteristic of Twisted Nematic Liquid Crystal Cell by Three Dimensional Finite Element Method  

정주식 (인하대학교 전자ㆍ전기공학부)
윤상호 (인하대학교 전자ㆍ전기공학부)
이철수 (인하대학교 전자ㆍ전기공학부)
윤석인 (인하대학교 전자ㆍ전기공학부)
원태영 (인하대학교 전자ㆍ전기공학부)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.39, no.12, 2002 , pp. 1071-1079 More about this Journal
Abstract
This paper reports a methodology and application lot calculating distribution of the director in a liquid crystal cell by a numerical technique. To calculate distribution of the director, we applied a three dimensional finite element method (FEM) and calculated the distributions of electric potential and director in the liquid crystal cell. We have considered the free-energy density in the bulk of liquid crystal cell and calculated the switching property by the Ericksen-Leslie equation and the Laplace equation. We have calculated the optical transmission with distribution of the director by Berreman's method and confirmed the threshold voltage and the response time.
Keywords
finite element method; liquid crystal; optical transmission; Ericksen-Leslie equation;
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