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Abstract
This work is concerned with reducing temperature dependence of the threshold voltage of the TN nematic liquid crystals which consist of majority of n-type base mixtures and minority of p-type additives.
The temperature coefficient of threshold voltage is closely related to the effective component of permanent dipole moment per molecules of p-type additives and becomes smaller with increasing it. The temperature coefficient is independent of the concentration of p-type additives.
The mixture, whose temperature coefficient is 0.16%/ ° C or -3mV/° C, is developed for seven to-one multiplexing scheme over the temperature range 0 ∼ 40° C without any temperature compensation circuit.