Dielectric properties of liquid crystals for display and sensor applications

Victor V. Belyaev, Denis N. Chausov, Alexander D. Kurilov, Dmitriy O. Rybakov, Alexey S. Solomatin, Anatoli A. Murauski, Alexander A. Muravsky, Vladimir G. Chigrinov, Fan Fan

Research output: Contribution to journalJournal Articlepeer-review

Abstract

Temperature dependence of dielectric properties of nematic liquid crystals are investigated for two types of devices: wide temperature range liquid crystal (LC) displays and capacitor temperature sensor. Both real and imaginary components of the dielectric constant have been measured in wide frequency and temperature range including t < 0 C as well as versus the angle θ between the directions of both magnetic and electric field in the measuring scheme. Some physical parameters of the nematic LC (NLC) dielectric relaxation have been determined. Effective values of the LC dielectric permittivity with different values of the LC pretilt angles in different parts of a complex LC cell have been simulated.

Original languageEnglish
Pages (from-to)403-409
Number of pages7
JournalJournal of the Society for Information Display
Volume23
Issue number9
DOIs
Publication statusPublished - 1 Sept 2015

Bibliographical note

Publisher Copyright:
© 2015 Society for Information Display.

Keywords

  • anisotropy
  • combined LC orientation
  • dielectric spectroscopy
  • liquid crystals
  • temperature sensor

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