Patent ID: 8398887

Claim:
A new nematic phase liquid crystal compound with a negative dielectric constant, having a structure represented by the following general formula (1): Wherein: R1 represents a hydrogen atom or a linear alkyl having 1 to 8 carbon atoms or a linear alkenyl having 2 to 8 carbon atom, or alternatively, R1 represents an alkoxy or an alykenoxy formed by substituting one or nonadjacent two CH 2 in the above linear alkyl or linear alkenyl with an oxygen atom, wherein 0 to 4 hydrogen atoms of R1 group can be substituted with fluorine; R2 represents hydrogen atom or a linear alkyl having 1 to 8 carbon atoms, or alternatively, R2 represents a linear fluoroalkyl having 1 to 8 carbon atoms, in which the linear fluoroalkyl can have 1 to 4 fluorine atoms; A represents a benzene ring or 1,4-cyclohexane ring, wherein if A is the benzene ring then there may be 0 to 4 hydrogen atoms on the benzene ring being substituted with fluorine; n=1 to 2, m=0 to 2.