Dielectric properties of liquid crystals for display and sensor applications

被引:7
作者
Belyaev, Victor V. [1 ]
Chausov, Denis N. [1 ,2 ]
Kurilov, Alexander D. [3 ]
Rybakov, Dmitriy O. [3 ]
Solomatin, Alexey S. [3 ]
Murauski, Anatoli A. [4 ]
Muravsky, Alexander A. [5 ]
Chigrinov, Vladimir G. [6 ]
Fan, Fan [6 ]
机构
[1] Moscow Region State Univ, Dept Theoret Phys, Moscow, Russia
[2] Moscow Region State Univ, Sci Lab Theoret & Appl Nanotechnol, Moscow, Russia
[3] Moscow Region State Univ, Moscow, Russia
[4] NAS Belarus, Inst Chem New Mat, Minsk, BELARUS
[5] NAS Belarus, Mat & Technol LC Devices, Inst Chem New Mat, Minsk, BELARUS
[6] Hong Kong Univ Sci & Technol, Hong Kong, Hong Kong, Peoples R China
关键词
liquid crystals; dielectric spectroscopy; anisotropy; temperature sensor; combined LC orientation; CELLS;
D O I
10.1002/jsid.352
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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 degrees C as well as versus the angle theta 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.
引用
收藏
页码:403 / 409
页数:7
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