Abstract: This liquid crystal display device is provided with: a pair of substrates which have conductive films, respectively; a liquid crystal layer which is arranged between the pair of substrates and contains a liquid crystal; and a liquid crystal control layer which is formed on the substrate-side interface of the liquid crystal layer by means of polymerization of a polymerizable monomer, and which controls the alignment of the liquid crystal. With respect to this liquid crystal display device, at least one of the pair of substrates is not provided with a liquid crystal alignment film, and the liquid crystal control layer contains a compound that has at least one partial structure which is selected from the group consisting of a fluorene structure-containing group, an aromatic amino group and a nitrogen-containing aromatic heterocyclic group.

Abstract: A liquid crystal element includes a pair of substrates disposed to face each other, a liquid crystal layer disposed between the pair of substrates, and a liquid crystal alignment layer provided on each of the liquid crystal layer sides of the pair of substrates. The liquid crystal layer includes a compound having an alkenyl structure and a compound having a terphenyl ring structure, or includes a compound having an alkenyl structure and a terphenyl ring structure in the same molecule, and the liquid crystal alignment layer is a layer comprising a liquid crystal alignment agent containing a polymer (P) which has at least one selected from the group consisting of a radical polymerizable group, a photoinitiator group, a nitrogen-containing heterocyclic ring (excluding imide rings in polyimides), an amino group and a protected amino group.

Abstract: This liquid crystal display device is provided with: a pair of substrates which have conductive films, respectively; a liquid crystal layer which is arranged between the pair of substrates and contains a liquid crystal; and a liquid crystal control layer which is formed on the substrate-side interface of the liquid crystal layer by means of polymerization of a polymerizable monomer, and which controls the alignment of the liquid crystal. With respect to this liquid crystal display device, at least one of the pair of substrates is not provided with a liquid crystal alignment film, and the liquid crystal control layer contains a compound that has at least one partial structure which is selected from the group consisting of a fluorene structure-containing group, an aromatic amino group and a nitrogen-containing aromatic heterocyclic group.

Abstract: A liquid crystal element includes a pair of substrates disposed to face each other, a liquid crystal layer disposed between the pair of substrates, and a liquid crystal alignment layer provided on each of the liquid crystal layer sides of the pair of substrates. The liquid crystal layer includes a compound having an alkenyl structure and a compound having a terphenyl ring structure, or includes a compound having an alkenyl structure and a terphenyl ring structure in the same molecule, and the liquid crystal alignment layer is a layer comprising a liquid crystal alignment agent containing a polymer (P) which has at least one selected from the group consisting of a radical polymerizable group, a photoinitiator group, a nitrogen-containing heterocyclic ring (excluding imide rings in polyimides), an amino group and a protected amino group.

Abstract: A liquid crystal composition is described, including a liquid crystalline compound (A), and at least one nitrogen-containing compound (B) selected from compounds represented by formula (1) and compounds represented by formula (2), wherein R? is a hydrogen atom or a monovalent organic group that is bonded to the nitrogen atom via a chain-shaped hydrocarbon group or an alicyclic hydrocarbon group, R2 and R3 are independently a divalent organic group that is bonded to the nitrogen atom via a chain-shaped hydrocarbon group, an alicyclic hydrocarbon group or *—CO—R4—, A1 is a nitrogen-containing heteroaromatic ring, X1 is a cyclic ether group or a polymerizable unsaturated group, and R10 is a divalent organic group that is bonded to the primary amino group via a chain-shaped hydrocarbon group or an alicyclic hydrocarbon group.

Abstract: A liquid crystal display (LCD) device having a slim border, a high reliability and a better residual-image characteristic is described. The LCD device includes a pair of substrates, liquid crystal alignment films, a sealing part disposed on surfaces of the liquid crystal alignment films, and a liquid crystal layer containing liquid crystal molecules. The liquid crystal alignment films include a polymer (P) having in its main chain a moiety (1) or (2) described below. The moiety (1) is an alkylene chain having 3 or more carbon atoms. The moiety (2) has a structure obtained by inserting one or more of —CO—, —O—, —NH— and —Si(R1)2— between carbon atoms of an alkylene chain having 3 or more carbon atoms, wherein R1 is a monovalent hydrocarbon group having 1 to 12 carbon atoms.

Abstract: A liquid crystal composition is described, including a liquid crystalline compound (A), and at least one nitrogen-containing compound (B) selected from compounds represented by formula (1) and compounds represented by formula (2), wherein R? is a hydrogen atom or a monovalent organic group that is bonded to the nitrogen atom via a chain-shaped hydrocarbon group or an alicyclic hydrocarbon group, R2 and R3 are independently a divalent organic group that is bonded to the nitrogen atom via a chain-shaped hydrocarbon group, an alicyclic hydrocarbon group or *—CO—R4—, A1 is a nitrogen-containing heteroaromatic ring, X1 is a cyclic ether group or a polymerizable unsaturated group, and R10 is a divalent organic group that is bonded to the primary amino group via a chain-shaped hydrocarbon group or an alicyclic hydrocarbon group.