Backflow effects in SSFLC switching

Zhong Zou; Noel A. Clark; Tomas M. Carlsson

doi:10.1117/12.151206

13 August 1993 Backflow effects in SSFLC switching

Zhong Zou, Noel A. Clark, Tomas M. Carlsson

Proceedings Volume 1911, Liquid Crystal Materials, Devices, and Applications II; (1993) https://doi.org/10.1117/12.151206
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1993, San Jose, CA, United States

Abstract

Backflow effects are familiar from twisted nematic devices, occurring when the electric field director reorientation initiates transient flow of the liquid crystal. We have been exploring similar effects in Surface Stabilized Ferroelectric Liquid Crystal (SSFLC) cells, carrying out computer simulations of coupled director reorientation--flow transients. Our simulations are based on an elastohydrodynamic model of the smectic C phase which accounts explicitly for its biaxial symmetry and layer structure. The elastic and dissipative constants used in the model are obtained from smectic C data or estimated on the basis of nematic values. The simulations show that under some circumstances, particularly in response to a reversal applied electric field, backflow can drastically alter the electro-optical response speed.

Citation Download Citation

Zhong Zou, Noel A. Clark, and Tomas M. Carlsson "Backflow effects in SSFLC switching", Proc. SPIE 1911, Liquid Crystal Materials, Devices, and Applications II, (13 August 1993); https://doi.org/10.1117/12.151206

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