Fluoro-isothiocyanated Liquid Crystal Materials with High Dielectric Anisotropy and Voltage Holding Ratio

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概要

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• As liquid crystal (LC) materials for TFT-TN display, two-ring and three-ring homologues with 2-fluoroisothiocyanatophenyl and 2,6-difluoroisothiocyanatophenyl with high dielectric anisotropy and birefringence are prepared. In spite of the existence of a high polar -NCS group, the voltage holding ratio (VHR) of NLC mixtures contained in them is sufficiently high for application of active matrix addressing. In this paper, we will explain the voltage holding property of three types of liquid crystal materials included the terminal -NCS group considering their molecular parameters such as the Huckel charge, polarizability and dipole moment and the temperature and frequency dependence of voltage holding ratios are examined.

• 社団法人応用物理学会の論文
• 2002-11-15

著者

• Kim Yong-bae

  Liquid Crystal Research Center Department Of Chemistry College Of Sciences Kon-kuk University

• Huh I‐k

  Liquid Crystal Research Center Department Of Chemistry College Of Sciences Kon-kuk University

• HUH Il-Kook

  Liquid Crystal Research Center, Department of Chemistry, College of Sciences, Kon-Kuk University

• Huh Il-kook

  Liquid Crystal Research Center Department Of Chemistry College Of Sciences Kon-kuk University

関連論文

• Fluoro-isothiocyanated Liquid Crystal Materials with High Dielectric Anisotropy and Voltage Holding Ratio
• Electro-optical Properties of Liquid Crystal Mixtures Containing Fluoroisothiocyanated Compounds
• Numerical Evaluation of the Temperature Dependence of $\Delta\varepsilon/S$ in 2,3,4-trifluorophenyl Liquid Crystals

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