Bulletin of the American Physical Society
APS March Meeting 2010
Volume 55, Number 2
Monday–Friday, March 15–19, 2010; Portland, Oregon
Session D17: Liquid Crystalline Order in Polymer and Complex Fluids
2:30 PM–5:30 PM,
Monday, March 15, 2010
Sponsoring Unit: DPOLY
Chair: Aniket Bhattacharya, University of Central Florida
Abstract ID: BAPS.2010.MAR.D17.8
Abstract: D17.00008 : Generalized Hydrodynamic Boundary Conditions Applied to Dynamic Switching of Nematic Liquid Crystal Cells*
3:54 PM–4:06 PM
Preview Abstract Abstract
(Department of Physics, Hong Kong University of Science and Technology)
As the size of a liquid crysta display (LCD) cell becomes smaller, boundary effects become more important. The dynamic coupling between flow and orientation order in surface layers can play a significant role when nematic molecules are weakly anchored to the solid boundaries and transitions between bistable configurations involve anchoring breaking. We use Onsager's variational approach along with a heuristic scaling analysis for surface layers to obtain hydrodynamic equations and generalized boundary conditions for nematic liquid crystal cells. As an application, we demonstrate how surface translation-rotation coupling can be utilized to optimize performance of LCD cells. We also discuss how surface dynamics affects the flow-induced transitions in hybrid aligned nematic cells.
*This work is supported by Award No. KAUST08/09.SC01, made by King Abdullah University of Science and Technology (KAUST).
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.MAR.D17.8
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