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holding ratio of TFT (thin film transistor) LC mixtures. For this reason and because of their low birefringence and favorable mesogenic properties, these new substances are quite attractive as a polar component of liquid-crystal mixtures for active matrix displays with shorter switching times and lower power consumption. [12] T NI,extr , De, Dn, and g 1 were determined by linear extrapolation from a 10 wt.-% solution in the commercially available Merck mixture ZLI-4792 (T NI = 92.8 C, e = 5.27, Dn = 0.0964) as a standard host. For the pure substances the mesophases were identified by optical microscopy, and the phase transition temperatures by differential scanning calorimetry (DSC).

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