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Title: Improvement in Planar Orientation of the Polymer-Stabilized Cholesteric Liquid Crystal Cells
Authors: Tien, Ching-Jui;Huang, Chi-Yen
Contributors: 光電科技研究所
Keywords: Liquid crystal;Cholesteric;Planar;Transition;Polymerization
Date: 2008-11
Issue Date: 2013-01-07T02:10:46Z
Publisher: The Japan Society of Applied Physics
Abstract: We investigate the effects of thermal annealing on the improvement in the planar orientation of the polymer-stabilized cholesteric liquid crystal (CLC) cell. The obtained results reveal that annealing the CLC/monomer mixture at the CLC–isotropic transition temperature (Tci) effectively reduces the viscosity of the CLC/monomer mixture, accelerating the annihilation of oily streaks. Increasing the annealing time effectively removes the oily streaks, giving the polymer-stabilized CLC cell a high transmittance and a sharp stop band edge. An 8-µm-thick polymer-stabilized CLC cell with a defect-free planar texture is achieved when the annealing time of the cell exceeds 10 min.
Relation: Jpn. J. Appl. Phys., 47(11): 8515-8517
Appears in Collections:[Graduate Institute of Photonics Technologies] Periodical Articles

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