This paper discusses cells filled with a dual-frequency nematic liquid crystal (DNLC) in which the initial tilt angle θp of the director was varied in the interval from 40° to 75° by varying the surface relief of the orienting layers. The experimental dependences of the time to change the phase lag by 2π at a wavelength of 0.65 µm on angle θp for longitudinal and transverse deformation of the DNLC layer have been obtained for the first time. It is shown that transverse elastic deformation is a slower process than longitudinal elastic deformation. The ON or OFF time of the cells as a result of the process of longitudinal elastic deformation occupied 1–2 ms when a field is applied with frequency 1 kHz, and was 3–9 ms for transverse deformation by applying an electric field with frequency 30 kHz.
© 2011 OSA
Original Manuscript: December 16, 2010
Published: July 14, 2011
I. F. Galin and E. A. Konshina, "How the initial tilt angle of the director of a dual-frequency liquid crystal affects the electrooptic characteristics of cells," J. Opt. Technol. 78, 400-402 (2011)