Numerical calculations of director patterns in highly twisted nematic configurations with nonzero pretilt angles

The influence is described of several device parameters, i.e., the total director twist, the pretilt angle, and anchoring energy, on the director pattern in highly twisted samples with nonzero boundary tilt. A difference compared with previous approaches is the inclusion of a finite anchoring energy...

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Bibliographic Details
Published in:Journal of applied physics 1986-08, Vol.60 (3), p.968-972
Main Authors: VAN SPRANG, H. A, BREDDELS, P. A
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Liquid crystals
Physics
Structure of solids and liquids
crystallography
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Summary:The influence is described of several device parameters, i.e., the total director twist, the pretilt angle, and anchoring energy, on the director pattern in highly twisted samples with nonzero boundary tilt. A difference compared with previous approaches is the inclusion of a finite anchoring energy coefficient in the continuum equations. The results indicate a pronounced influence of the surface anchoring on the hysteresis in the midplane tilt angle as a function of an applied voltage.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.337339