Storage Capacitance in TFT-FLCD devices

Abstract

Spontaneous polarization of the ferroelectric liquid crystals induce voltage drop during the holding period in TFT driving and in order to compensate the voltage drop, larger storage capacitance is needed. But that will reduce the aperture ratio and transmittance of the LCD panel. Larger spontaneous polarization induces larger voltage drop, but in that case, the driving voltage is small, so it is possible to do not change the storage capacitance if optimize the spontaneous polarization, driving voltage and the voltage drop.