2D13 Ch-SmC^*相転移型液晶を用いたTFT-FLCDモード

概要

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We have proposed a novel ferroelectric liquid crystal (FLC) mode, which has the ability of gray scale displaying with the active device such as a thin film transistor (TFT). This technology is based on the mono-stable FLC mode, which is obtained by the material with the cholesteric (Ch) - chiral smectic C (SmC) phase transition sequence and applying small DC voltage nearby the phase transition temperature from Ch to SmC for making the layer normal direction uniform. The electro-optical response of liquid crystal molecules under the AC voltage is asymmetric between plus and minus voltages. It shows the characteristics such as low spontaneous polarization (Ps) value, fast response time, small temperature dependency and wide tolerance to cell gap non-uniformity.
日本液晶学会の論文
1999-09-28