Open AccessOptical simulation of cholesteric liquid crystal displays using the finite-difference time-domain method
Author(s) -
Chi-Lun Ting,
TsungHsien Lin,
Chi Chang Liao,
Andy Ying–Guey Fuh
Publication year - 2006
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.005594
Subject(s) - finite difference time domain method , optics , liquid crystal , birefringence , reflection (computer programming) , finite difference method , cholesteric liquid crystal , materials science , maxwell's equations , bragg's law , finite difference , bandwidth (computing) , physics , computer science , diffraction , mathematics , mathematical analysis , classical mechanics , computer network , thermodynamics , programming language
The finite-difference time-domain (FDTD) method is a powerful numerical algorithm used to directly solve Maxwell's equations. We introduce the idea of the FDTD method and the techniques required for optical simulation of cholesteric liquid crystal (Ch-LC) devices. Bragg reflection characteristics of Ch-LC cells are investigated using the FDTD method. Three approaches to broadening the bandwidth of Bragg reflection are demonstrated: (1) using a higher birefringence LC, (2) using a cell with a gradient pitch length, and (3) using a cell with a new multidimensional structure of a Ch-LC.