Effects of Nematic Compounds with High Clearing Points on the Multiplexing Performance of Twisted Nematic Displays |
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| Authors: | Y Nakagawa K Sawada Y Masuda |
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| Institution: | Research and Development Division , Asahi Glass Co. Ltd. , 1150 Hazawa-cho, Kanagawa-ku, Yokohama, 221, Japan |
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| Abstract: | The addition of nematic compounds with high clearing points (Nh) to multiplexable nematic liquid crystals decreases the temperature dependence of the threshold voltage of twisted nematic displays. This effect depends on the dielectric anisotropy of the nematic liquid crystals containing Nh, as well as on the increase in T c. In the case of 4-n-butylphenyl 4'-(4”-butyibenzoyloxy) benzoate, the low threshold voltage was exceptionally compatible with a small temperature dependence of threshold voltage, and this result was attributed to the large temperature dependence of the dielectric anisotropy in comparison with that of nematic liquid crystals containing other Nh's. |
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| Keywords: | hydrated and anhydrous alkyltrimethylammoniumdichromates liquid-crystalline phase transitions |
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