LIQUID CRYSTAL COMPOSITION HAVING EASILY ADJUSTABLE ROTATIONAL VISCOSITY

摘要

The present invention provides a liquid crystal composition having easily adjustable rotational viscosity while maintaining stability at low temperature, a clearing point and dielectric anisotropy (positive value) in an optimal condition according to an exemplary embodiment of the present invention, including: at least one liquid crystal compound selected from the group consisting of liquid crystal compounds represented by the following Chemical Formula 1, as a first component; at least one liquid crystal compound selected from the group consisting of liquid crystal compounds represented by the following Chemical Formula 2, as a second component; and at least one liquid crystal compound selected from the group consisting of liquid crystal compounds represented by the following Chemical Formula 3, as a third component.;The liquid crystal composition according to the present invention has high clearing point and refractive index anisotropy, a controllable modulus of elasticity, and high specific resistance, and the rotational viscosity thereof is easily adjustable to be low. Thus, the liquid crystal composition satisfying various liquid crystal display (LCD) device characteristics is provided.

主权项

1. A liquid crystal composition comprising:
at least one liquid crystal compound selected from the group consisting of liquid crystal compounds represented by Chemical Formula 1, as a first component; at least one liquid crystal compound selected from the group consisting of liquid crystal compounds represented by Chemical Formula 2, as a second component; and at least one liquid crystal compound selected from the group consisting of liquid crystal compounds represented by Chemical Formula 3, as a third component. wherein R and R′ are independently of each other alkyl having 1 to 12 carbon atoms, alkenyl having 2 to 12 carbon atoms or alkoxy having 1 to 12 carbon atoms; X is F, CF3, OCF3 or OCF2CF═CF2; and hexacycles A and B are independently of each other the following groups: hexacycles A and B are independently of each other cyclohexyl, phenyl, fluorinated phenyl or a ring compound having 1 or 2 CH2 unit replaced with oxygen in cyclohexyl and are selected from following groups: