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Acta Phys. Sin. (Overseas Edition), 1997, Vol. 6(6): 422-428    DOI: 10.1088/1004-423X/6/6/004
CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES Prev   Next  

THE WIDTH EFFECT OF ELECTRODE IN THE FREEDERICKSZ TRANSITION OF NEMATIC LIQUID CRYSTALS

WANG CUN-DAO, YANG GUO-CHEN
The Institute of Applied Mathematics and Physics, Hebei University of Technology, Tianjin 300130, China
Abstract  The Freedericksz transition of nematic liquid crystals with limited width of ele ctrode on substrates of the cell is investigated. Solving two-dimensional nonli near partial differential equations by means of numerical method, we obtained the sp ace distribution of the director of the liquid crystal. The threshold voltage is found to depend on the ratio of the electrode width l to the thickness of the liquid crystal layer d. The deflect angleθ of the director lapses near the edge of the electrode and the width of this lapsing area are discussed.
Received:  29 April 1996      Published:  20 June 1997
PACS:  64.70.M- (Transitions in liquid crystals)  
  61.30.-v (Liquid crystals)  
  02.30.Jr (Partial differential equations)  
Fund: Project supported by the National Natural Science Foundati on of China and in part by the China Postdoctoral Science Foundation.

Cite this article: 

WANG CUN-DAO, YANG GUO-CHEN THE WIDTH EFFECT OF ELECTRODE IN THE FREEDERICKSZ TRANSITION OF NEMATIC LIQUID CRYSTALS 1997 Acta Phys. Sin. (Overseas Edition) 6 422

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