Abstract
Displays with the twist structure of the LC layer hold a leading position among the LCDs. With low frequency inversion of the dielectric anisotropy sign, the use of double frequency driving in cells filled with LC material allows both switch-on and switch-off times of the electro-optic mode to be reduced. In our paper oscillograms of electrooptic response vs. high frequency (HF) voltage are presented for such LC cells. The bounce, which is induced by the back flow in strongly deformed twist cells, gradually decreases in magnitude with increasing HF voltage. It is suggested that the HF voltage suppresses the back flow in the vicinity of the cell's substrate surface. At the HF voltage that follows the disappearance of the bounce, the short response mode arises.
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