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Browsing by Author "Chen, Hsin-Hsu"

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    New Experimental Results on Electro-Optical Effects of Ionic Impurities in Twisted Nematic Liquid Crystal Displays
    (2011)
    Chen, Hsin-Hsu
    ;
    Yang, Kei-Hsiung
    ;
    照明與能源光電研究所
    ;
    影像與生醫光電研究所
    ;
    Institute of Lighting and Energy Photonics
    We report new experimental results on electro-optical effects of a twisted nematic (TN) liquid crystal cell caused by ionic impurities within the cell. By using a published ion-generation equation that took both field-assisted and thermal-activated behaviors into consideration, for the first time, we have identified methods of measurement and analysis to obtain the ion concentration and the activation energy of low-ionization-rate impurities within a TN cell.