Influences of Flexoelectric Polarization on Easy Direction and Director Distribution of Non-Symmetric NLC Cell

Abstract:

Considering flexoelectric polarization, the equilibrium equation and boundary condition for tilt angle are derived. The influence of flexoelectric polarization on cell with different anchoring for the two substrates (i.e. a non-symmetric cell) is investigated. We show that, the easy direction is changed by flexoelectric polarization. The planar anchoring cell may equivalent to hybrid aligned cell under certain conditions. The influence of flexoelectric polarization on the director distribution is simulated by numerical method.

• Periodical: Key Engineering Materials (Volumes 428-429)
• Pages: 251-254
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.428-429.251
• Online since: January 2010
• Authors: Rong Hua Guan
• Keywords: Director Distribution, Easy Direction, Flexoelectric Polarization, Non-Symmetric Cell

References

[1] G. Barbero and A. Strigazzi: Fizika Vol. 13 (1981), p.85.

[2] G. Barbero and R. Barberi: J. Physique Vol. 44 (1983), p.609.

[3] G. C. Yang, J. R. Shi and Y. Liang: Liq. Cryst. Vol. 27(2000), p.875.

[4] G. C. Yang, R. H. Guan and J. X. Huai: Liq. Cryst. Vol. 30 (2003), p.1225.

[5] R. B. Meyer: Phys. Rev. Lett. Vol. 22 (1969), p.918.

[6] P. Jacques and P. S. Pershan: J, Appl. Phys. Vol. 47 (1976), p.2298.

[7] N. V. Madhusudana and G. Durand: J. Phys. Lett. Vol. 46 (1985), p.195.

[8] P. R. M. Murthy: Liq. Cryst. Vol. 14 (1993 ), p.483.

[9] L. M. Blinov, M. I. Baruik, H. Ohoka et al: Eur. Phys. J. E. Vol. 4 (2001), p.183.

[10] J. S. Elston: Phys. Rev. E Vol. 78 (2008), p.11701.

[11] G. C. Yang, R. H. Guan and H. L. An: Liq. Cryts. Vol. 30 (2003), p.997.

[12] Q. Wang and S. L. He: Acta Phys. Sin. Vol. 50 (2001), p.926 (in Chinese).