Dynamic characteristics of dual-frequency nematic liquid crystal with quasi-homeotropic twist structure |
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Authors: | E. A. Konshina M. A. Fedorov L. P. Amosova |
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Affiliation: | 1.St. Petersburg State University of Information Technology, Mechanics, and Optics,St. Petersburg,Russia |
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Abstract: | Dynamic characteristics of a liquid crystal (LC) cell with a quasi-homeotropic twist structure formed in a dual-frequency nematic liquid crystal (DFNLC) layer with the director pretilt angle increased to 60° have been experimentally studied. The cell was switched from the off to on state using a 30-kHz electric field, while the reverse (off/on) switching was effected by a 1-kHz field. An increase in the director pretilt angle allowed the switch-on time of a 6.4-μm-thick DFNLC cell to be reduced to 1 ms and the relaxation (switch-off) time, to 0.5 ms. |
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