Fast addressing modes for ferroelectric LC display panels

Conditions were studied for direct and reverse latching behavior of the FLC (ferroelectric liquid crystals) cells following symmetric bilateral voltage pulses. Fast addressing modes for the SSFLC (surface-stabilized FLC) matrices are presented that depending on the modulation of the high-frequency components occurring in special selection sequences rather than on the modulation of the Vdt integral in the writing time. With these modes, the voltage nonlinearity derived from a negative dielectric anisotropy can be effectively utilized. Speed improvements as large as two were experimentally found.<
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