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Chinese Physics, 2001, Vol. 10(7): 645-649    DOI: 10.1088/1009-1963/10/7/312
CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES Prev   Next  

ON THE SATURATION BEHAVIOUR OF TWISTED NEMATIC LIQUID CRYSTAL CELLS WITH A NONZERO PRETILT ANGLE

Zhang Zhi-dong (张志东), Yu Hui (于慧), Li Li (李丽)
Department of Physics, Hebei University of Technology, Tianjin 300130, China
Abstract  Equations are obtained for the surface tilt angle and the twist angle of the director in a twisted nematic liquid crystal cell under a high magnetic field. Under a zero pretilt angle, the two equations reduce to those obtained by Sugimura et al.[2,3] This fact has also been demonstrated numerically. With finite field strength and nonzero pretilt angle, no saturation transition exists.
Keywords:  twisted nematic liquid crystal cell      weak anchoring      nonzero pretilt angle      saturation behaviour  
Received:  11 November 2000      Revised:  12 December 2001      Accepted manuscript online: 
PACS:  61.30.-v (Liquid crystals)  
Fund: Project supported by the Doctoral Foundation of Education Bureau of Hebei Province.

Cite this article: 

Zhang Zhi-dong (张志东), Yu Hui (于慧), Li Li (李丽) ON THE SATURATION BEHAVIOUR OF TWISTED NEMATIC LIQUID CRYSTAL CELLS WITH A NONZERO PRETILT ANGLE 2001 Chinese Physics 10 645

[1] Threshold and saturation properties of the field-induced twist cell with two parameters weak anchoring boundaries
Guan Rong-Hua (关荣华), Sun Yu-Bao (孙玉宝). Chin. Phys. B, 2006, 15(5): 1041-1050.
[2] First-order Fréedericksz transition at the threshold point for weak anchoring nematic liquid crystal cell under external electric and magnetic fields
Guan Rong-Hua (关荣华), Yang Guo-Chen (杨国琛). Chin. Phys. B, 2003, 12(11): 1283-1290.
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