LIQUID CRYSTALLINE COMPOUND, LIQUID CRYSTALLINE COMPOSITION, OPTICAL FILM, AND OPTICAL LAMINATE

摘要

Disclosed are: a liquid crystalline compound represented by the formula (I); a liquid crystalline composition comprising the compound; an optical film having a liquid crystal layer formed by using the liquid crystalline composition; and an optical laminate comprising a base material, an oriented film formed on the base material, and a liquid crystal layer formed on the oriented film by using the liquid crystalline composition. Specifically disclosed are: a liquid crystalline compound which has a high liquid crystal phase upper limit temperature, is chemically stable, can be produced at low cost, and has a wide selective reflection wavelength band ?? (namely, having a large ?n); a liquid crystalline composition comprising the compound; and an optical film or optical laminate having a liquid crystal layer formed by using the composition. In the formula (I), R¹ to R¹³ independently represent a hydrogen atom, a fluorine atom, a methyl group, a trifluoromethoxy group, a cyano group or the like; X represents -O-, -O-CO- or the like; n represents a number of 0 or 1; and R¹⁴ represents a group represented by the formula: -A-CO-CH=CH₂ (wherein A represents a linkage group) or the like.