Liquid crystal aligning agent, liquid crystal alignment film and liquid crystal display element

• Main Authors: NEGI, TAKAYUKI, GOTO, KOHEI, IIZUKA, YUTA
• Format: Patent
• Language: Chinese; English
• Published: 01.01.2019
• Subjects: ADHESIVES; CHEMISTRY; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES

The present invention provides: a liquid crystal alignment film which exhibits good liquid crystal aligning properties even if the firing time thereof is shortened, while achieving excellent pretilt angle imparting ability and high reliability; and a liquid crystal aligning agent. The present invention provides: a liquid crystal aligning agent which contains a solvent and a component (A) that is a polymer having structures (A-1) and (A-2), and wherein the polymer additionally has a structure (A-3) that has at least one functional group selected from among an oxetanyl group, an oxiranyl group, a group represented by formula (3), a group represented by formula (4), a group represented by formula (5) and a thiirane group; and/or the liquid crystal aligning agent which additionally contains a component (B) other than the component (A), and wherein the component (B) is a compound that has two or more groups in each molecule, said groups being selected from the group consisting of an epoxy group, a thiirane group,