Electrohydrodynamic Instabilities in Nematic Liquid Crystals

  • Dietrich Meyerhofer


The best-known electrohydrodynamic instabilities in liquid crystals are the Williams domains.1 They are observed when an electric field is applied to a thin layer of a nematic liquid crystal having negative dielectric anisotropy and sufficient electrical conductivity. They manifest themselves as a set of parallel straight lines separated by a constant distance that is approximately equal to the cell thickness. They appear above a well-defined threshold voltage and exist in their original form over only a small voltage range. At higher voltages, the pattern becomes more complicated and leads to heavily scattering turbulence (dynamic scattering).2


Liquid Crystal Threshold Voltage Nematic Liquid Crystal Domain Spacing Liquid Crystal Cell 


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Copyright information

© RCA Laboratories 1975

Authors and Affiliations

  • Dietrich Meyerhofer
    • 1
  1. 1.RCA LaboratoriesPrincetonUSA

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