| abstract |
The present invention provides a naphthalene compound represented by the general formula (1).n n n n n n n n [Wherein, R 1 and R 2 represent a linear or branched alkyl group having 1 to 20 carbon atoms, an alkoxyalkyl group having 2 to 20 carbon atoms or an alkenyl group having 2 to 20 carbon atoms which do not have an asymmetric carbon atom which may be substituted with a halogen atom , A is a group of which is represented by the following formulan n n n n n n n Wherein X 1 , X 2 , X 3 and X 4 represent a hydrogen atom or a halogen atom and the 1,4-cyclohexylene ring is a transbatch, and Z represents 0 or 1n n n The naphthalene compound can be added to the liquid crystal composition to improve characteristics such as high-speed response of the liquid crystal composition and temperature dependence of the response time, and can be used as a constituent of the liquid crystal composition, particularly a ferroelectric liquid crystal composition. It is characterized by usefulness. |