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Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/15102

Title: Switching of Vertical Alignment Liquid Crystal Cell Doped with Carbon Nanotubes
Authors: Huang, Chi-Yen;Lin, Ying-Ging;Huang, Yi-Jen
Contributors: 光電科技研究所
Keywords: Liquid crystal;Carbon nanotube;Vertical alignment
Date: 2008-08
Issue Date: 2013-01-07T02:10:45Z
Publisher: The Japan Society of Applied Physics
Abstract: We investigate switching characteristics of a vertical alignment (VA) liquid crystal (LC) cell doped with minute amounts of carbon nanotubes (CNTs). The doped CNTs increase the effective elastic constant of the LC–CNT mixture, decreasing the fall time of the cell. However, the doped CNTs disturb the LC alignment, generating complex defects in the cell under voltage supply. The flow motion of the defects generates an optical bounce on the rising edge of the optical response curve of the cell, increasing the rise time of the cell. A step-voltage driving scheme is demonstrated to eliminate the optical bounce and effectively improve the rise time of the cell. Under the CNT doping condition and the step-voltage driving scheme, the response time of the VA LC cell can be reduced to 50% of that of the pristine cell under the conventional driving scheme.
Relation: Jpn. J. Appl. Phys., 47(8): 6407-6409
Appears in Collections:[光電科技研究所] 期刊論文

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