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Bistable twisted-bend and twisted-nematic liquid crystal display

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2 Author(s)
Li, Y.W. ; Center for Display Research, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong ; Kwok, H.S.

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Bistability of twisted-bend and twisted configuration is found. It is based on the elastic and topological inequivalency of director orientation. Multiple states of minimum local energy exist, with appropriate boundary conditions. The effects of elastic constants, d/P ratio and pretilt angle are also investigated. Fast electrical switching time ≪500 μs and high average contrast of 45:1 are obtained experimentally.

Published in:

Applied Physics Letters  (Volume:95 ,  Issue: 18 )

Date of Publication:

Nov 2009

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