Switching dynamics of a post-aligned bistable nematic liquid crystal device

IEEE/OSA Journal of Display Technology

Volumn 4, Issue 3, 2008, Pages 276-281

  Willman, Eero ^b   Fernández, F Aníbal ^a,b   James, Richard ^b   Day, Sally E ^a,b  

^a IEEE

^b UNIVERSITY COLLEGE LONDON   (United Kingdom)

Author keywords

Bistable; Liquid crystal; Post aligned; Post aligned bistable nematic (PABN) liquid crystal (LC) device

Indexed keywords

BEAMS AND GIRDERS; FREE ENERGY; LIGHT SOURCES; LIQUID CRYSTAL DISPLAYS; NEMATIC LIQUID CRYSTALS; OPTOELECTRONIC DEVICES; POWDERS; PROCESS ENGINEERING;

BISTABLE; DEFECT LINES; DIRECTOR FIELDS; FINITE ELEMENTS; LANDAU-DE GENNES THEORY; LIQUID CRYSTAL; LIQUID-CRYSTAL DEVICES; POST ALIGNED; POST-ALIGNED BISTABLE NEMATIC (PABN) LIQUID CRYSTAL (LC) DEVICE; STABLE STATES; SWITCHING DYNAMICS; SWITCHING PROCESS; TILT ANGLES; TOTAL FREE-ENERGY;

LIQUID CRYSTALS;

EID: 50249106259     PISSN: 1551319X     EISSN: None     Source Type: Journal    
DOI: 10.1109/JDT.2008.921780     Document Type: Article

References (22)

1. A. J. Davidson and N. J. Mottram, "Flexoelectric switching in a bistable device," Phys. Rev. E, vol. 65, no. 051710, 2002.
2. R. Barberi, M. Giocondo, and G. Durand, "Flexoelectrically controlled surface bistable switching in nematic liquid crystals," Appl. Phys. Lett., vol. 60, no. 9, 1992.
3. R. Barberi, J. J. Bonvent, M. Giocondo, M. Iovane, and A. L. Alexe-Ionescu, "Bistable nematic azimuthal alignment induced by anchoring competition," J. Appl. Phys., vol. 84, no. 3, pp. 1321-1324, 1998.
4. C. Denniston and J. M. Yeomans, "Flexoelectric surface switching of bistable nematic devices," Phys. Rev. Lett., vol. 87, no. 27, 2001.
5. G. D. Boyd, J. Cheng, and P. D. T. Ngo, "Liquid-crystal orientational bistability and nematic storage effects," Appl. Phys. Lett., vol. 36, no. 7, 1980.
6. S. Kitson and A. Geisow, "Controllable alignment of nematic liquid crystals around microscopic posts: Stabilization of multiple states," Appl. Phys. Lett, vol. 80, no. 19, 2002.
7. S. Kitson and A. Geisow, "Bistable alignment of nematic liquid crystals around microscopic posts," Mol. Cryst. Liq. Cryst, vol. 42, pp. 153-161, 2004.
8. L. A. Parry-Jones and S. J. Elston, "Flexoelectric switching in a zenithally bistable nematic device," J. Appl. Phys., vol. 97, no. 093515, 2005.
9. G. Bryan-Brown, C. V. Brown, J. C. Jones, E. L. Wood, I. C. Sage, P. Brett, and J. Rudin, "Grating aligned bistable nematic device," in Proc. Soc. Inf. Display Int. Symp. Dig. Tech. Papers, 1997, vol. 18, pp. 37-40.
10. S. Kitson, "Bistable Nematic Liquid Crystal Device," U.S. 6,903,790 B2, 2005.
11. R. James, E. Willman, F. A. Fernández, and S. E. Day, "Finite-element modeling of liquid crystal hydrodynamics with a variable degree of order," IEEE Trans. Electron Devices, vol. 53, no. 7, pp. 1575-1582, Jul. 2006.
12. A. Majumdar, C. J. P. Newton, J. M. Robbins, and M. Zyskin, "Topology and bistability in liquid crystal devices," Phys. Rev. E, vol. 75, no. 051703, 2007.
13. P. G. de Gennes and J. Prost, The Physics of Liquid Crystals. Oxford, U.K.: Clarendon, 1993.
14. H. J. Coles, "Laser and electric field induced birefringence studies on the cyanobiphenyl homologues," Mol. Cryst. Liq. Cryst., vol. 49, pp. 67-74, 1978.
15. S. Dickmann, J. Eschler, O. Cossalter, and D. A. Mlynski, "A simulation of LCDs including elastic anisotropy and inhomogeneous fields," in SID'93 Dig., 1993, pp. 638-638.
16. H. Mori, J. E. C. Gartland, J. R. Kelly, and P. Boss, "Multidimensional director modelling using the Q tensor representation in a liquid crystal cell and its application to the π cell with patterned electrodes," Jpn. J. Appl. Phys., vol. 38, pp. 135-146, 1999.
17. R. B. Meyer, "Piezoelectric effects in liquid crystals," Phys. Rev. Lett., vol. 22, no. 18, 1969.
18. S. A. Jewell and J. R. Sambles, "Fully leaky guided mode study of the flexoelectric effect and surface polarization in hybrid aligned nematic cells," J. Appl. Phys., vol. 92, no. 1, pp. 19-24, 2002.
19. D. L. Cheung, S. J. Clark, and M. R. Wilson, "Calculation of flexoelectric coefficients for a nematic liquid crystal by atomistic simulation," J. Chem. Phys., vol. 12, no. 18, pp. 9131-9139, 2004.
20. B. Jérôme, "Surface effects and anchoring in liquid crystals," Rep. Prog. Phys., vol. 199, no. 54, pp. 391-451, 1991.
21. I. Dozov, D. N. Stoenescu, S. L.-F. Ph, Martinot-Lagarde, and E. Polossat, "Planar degenerated anchoring of liquid crystals obtained by surface memory passivation," Appl. Phys. Lett., vol. 77, no. 25, pp. 4124-4126, 2000.
22. E. Willman, F. A. Fernández, R. James, and S. E. Day, "Modeling of weak anisotropic anchoring of nematic liquid crystals in the Landau-de Gennes theory," IEEE Trans. Electron Devices, vol. 54, no. 10, pp. 2630-2637, Oct. 2007.