New type of liquid crystals such as laterally fluorinated naphthalene indane,axially fluorinated cyclohexane and liquid crystal containing highly fluorinated substituent,which with high negative dielectric anisotropy、low viscosity and high clearing point were emphasized.

Liquid crystal materials with negative dielectric anisotropy are widely used in LCD, such as DSECBGHFLCPDLCVA-TFTMDVA-TFT modes.

The structures,properties and applications of laterally fluorinated negative dielectric anisotropy liquid crystal compounds are reviewed.

In this paper, the advantages of these compounds are summarized, showing that naphthalene derivative is useful for preparing a liquid crystal composition with a wide temperature range of nematic phase, very large dielectric anisotropy and a small birefringence, thereby being driven at a low voltage, and suitable for high performance STN.

This paper has discussed the effect of the moleculer conjugate π-electrons on the dielectric anisotropy of liquid crystal materials.

The coupling effects of electric fields to dielectric tensor as well as the surface anchoring forces due to alignment layers are included in the model by equivalent current sources to make it has the capability in optical response prediction and dynamic analysis when dielectric anisotropy of FLC is of a relatively.

FCT finite difference modeling of three-component seismic records in anisotropic medium;

Experimental researckes on shear wave characteristics in anisotropic medium;

Study of parallel FDTD algorithm for anisotropic medium on a PC cluster system;

Using the wavefront spreading method to solve the eikonal equation for anisotropic media;

Numeric simulation of S-wave splitting and second splitting in layered anisotropic media;

Aiming at the reflection of artifical boundary when simulating the seismic prospecting, this paper gives the absorbing boundary conditions for anisotropic media.