Liquid crystal display element and liquid crystal composition

A liquid crystal display element in which a liquid crystal layer is interposed between a pair of substrates that are arranged to face each other and adhered using a sealing agent,

• wherein an alignment control layer for controlling the alignment of liquid crystal molecules is provided between the pair of substrates and the liquid crystal layer,
• wherein the liquid crystal layer is composed of a liquid crystal composition having negative dielectric anisotropy,
• wherein the liquid crystal composition comprises, as a first additive, at least one alignment control monomer represented by Formula (A) including an aromatic ester that causes photo-Fries rearrangement due to light exposure, and a liquid crystalline compound, and
• wherein the alignment control layer is composed of a polymer that is formed by polymerizing the alignment control monomer represented by Formula (A):
• in Formula (A),
• P10 and P20 independently represent a polymerizable group;
• Sp10 and Sp20 independently represent a single bond or an alkylene group having 1 to 12 carbon atoms, and at least one hydrogen atom in the alkylene group is optionally substituted with a fluorine atom or a hydroxy group, at least one —CH2— is optionally substituted with —O—, —COO—, —OCO— or Formula (Q-1), and at least one —CH2—CH2— is optionally substituted with —CH═CH— or —C≡C—;
• in Formula (Q-1), M10, M20, and M30 independently represent a hydrogen atom, a fluorine atom, an alkyl group having 1 to 5 carbon atoms, or an alkyl group having 1 to 5 carbon atoms in which at least one hydrogen atom is substituted with a fluorine atom or a chlorine atom, Sp11 is a single bond or an alkylene group having 1 to 12 carbon atoms, at least one hydrogen atom in the alkylene group is optionally substituted with a fluorine atom or a hydroxy group, at least one —CH2— is optionally substituted with —O—, —COO—, or —OCO—, and at least one —CH2—CH2— is optionally substituted with —CH═CH— or —C≡C—;
• Z10, Z20 and Z30 independently represent a single bond, —COO—, —OCO—, —OCOO—, —OCO—CH2CH2—, —CH2CH2—COO—, —CH2O—, —OCH2—, —CF2O—, —OCF2—, —C≡C—, —CONH—, —NHCO—, —(CH2)4—, —CH2CH2— or —CF2CF2—;
• A10 and A30 independently represent 1,4-phenylene, 1,4-cyclohexylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl, naphthalene-2,6-diyl, naphthalene-1,5-diyl, tetrahydronaphthalene-2,6-diyl, fluorene-2,7-diyl, biphenylene-4,4′-diyl or 1,3-dioxane-2,5-diyl, and in 1,4-phenylene, any hydrogen atom is optionally substituted with a fluorine atom, a chlorine atom, a cyano group, a hydroxy group, a formyl group, an acetoxy group, an acetyl group, a trifluoroacetyl group, a difluoromethyl group, a trifluoromethyl group, an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or P10—Sp10-Z—, and in fluorene-2,7-diyl, any hydrogen atom is optionally substituted with a fluorine atom or an alkyl group having 1 to 5 carbon atoms, and in biphenylene-4,4′-diyl, any hydrogen atom is optionally substituted with a fluorine atom, a difluoromethyl group, a trifluoromethyl group, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 5 carbon atoms;
• A20 represents 1,4-phenylene represented by Formula (A20-1), pyridine-2,5-diyl, or pyrimidine-2,5-diyl, naphthalene-2,6-diyl represented by Formula (A20-2), or naphthalene-1,5-diyl, biphenylene-4,4′-diyl represented by Formula (A20-3), or fluorene-2,7-diyl represented by Formula (A20-4),
• in 1,4-phenylene represented by Formula (A20-1), X10, X11, X12 and X13 each are independently optionally substituted with a hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a hydroxy group, a formyl group, an acetoxy group, an acetyl group, a trifluoroacetyl group, a difluoromethyl group, a trifluoromethyl group, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 5 carbon atoms, and at least one of X10 and X13 is a hydrogen atom,
• in naphthalene-2,6-diyl represented by Formula (A20-2), X14, X5, X6, X17, X18 and X19 are each independently optionally substituted with a hydrogen atom, a fluorine atom, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 5 carbon atoms, and at least one of X14 and X19 is a hydrogen atom,
• in biphenylene-4,4′-diyl represented by Formula (A20-3), X20, X21, X22, X23, X24, X25, X26 and X27 each are independently optionally substituted with a hydrogen atom, a fluorine atom, a difluoromethyl group, a trifluoromethyl group, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 5 carbon atoms, and at least one of X20 and X27 is a hydrogen atom,
• in fluorene-2,7-diyl represented by Formula (A20-4), X28, X29, X30, X31, X32 and X33 each are independently optionally substituted with a hydrogen atom, a fluorine atom, or an alkyl group having 1 to 5 carbon atoms, and at least one of X28 and X31 is a hydrogen atom;
• n10 is independently an integer of 0 to 3.