Silica-nanoparticle-doped nematic display with multistable and dynamic modes

Chi Yen Huang, Chien Cheng Lai, Yao Hsien Tseng, Ya Ting Yang, Ching Jui Tien, Kuang Yao Lo

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Abstract

We demonstrate a silica-nanoparticle-doped hybrid-aligned nematic device, which can be operated in the dynamic mode and the multistable mode. Under ac voltage excitation, the interfacial polarization effect between the homogeneously dispersed nanoparticles and the liquid crystal (LC) host reduces the dielectric relaxation time of the LC-silica dispersion, giving the LC cell a fast response time for the dynamic mode. Under dc voltage excitation, the silica nanoparticles accumulated on the planar side of the cell, creating agglomerates to stabilize the homeotropically aligned LCs, which is retained after switching off the voltage, giving the cell bistable/multistable switching characteristics.

Original languageEnglish
Article number221908
JournalApplied Physics Letters
Volume92
Issue number22
DOIs
Publication statusPublished - 2008 Jun 13

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Huang, C. Y., Lai, C. C., Tseng, Y. H., Yang, Y. T., Tien, C. J., & Lo, K. Y. (2008). Silica-nanoparticle-doped nematic display with multistable and dynamic modes. Applied Physics Letters, 92(22), [221908]. https://doi.org/10.1063/1.2938880