Bistable Ferroelectric LCD and Drive Scheme

Multiplexibility of liquid crystal materials is necessary for their use in high information content displays. There are three ways to achieve this goal. The first is to develop displays with steep voltage-transmittance curve as discussed in the first section. The second way is using active matrices where the voltage on a pixel can be controlled independently. The third way is developing bistable liquid crystals, the subject of the rest of this chapter. 

As discussed in Chapter 4, surface stabilized ferroelectric liquid crystals (SSFLCs) have two stable states at zero field. The two states have different planar orientational angles as shown in 

Experiments show that FLCs with high spontaneous polarizahons respond accumulahvely to voltage pulses [6-8]. The switching between the two stable states is determined by the volt- 

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