Liquid crystal alignment agent, method for manufacturing liquid crystal display device, liquid crystal alignment film, liquid crystal display device, polymer and carboxylic acid

• Main Authors: HIRANO, SATOSHI, AKIIKE, TOSHIYUKI, SHIMIZU, SHIGEO, TAJIKA, MITSUHIRO, SUGANO, NAOKI
• Format: Patent
• Language: Chinese; English
• Published: 21.10.2016
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention provides a liquid crystal alignment agent which is able to form a liquid crystal alignment film indicating an excellent pre-tilt angle with small light irradiation amount and is able to obtain a liquid crystal display device with the rapid response speed of liquid crystal molecules. The liquid crystal alignment agent contains a polymer having a group represented by formula (1). (In the formula, A1 is one among a biphenyl group, a bicyclohexylene group, a naphthylene group and the like. Y is a single bond, -O-, *2 -COO-, *2 -OCO-, -OCOO- and the like. L is one among a single bond, an alkanediyl group of C1-C20. a and b respectively are 0 or 1 and do not satisfy a=b=0. And Z is a group having polymerizable unsaturated bond). [Reference numerals] (AA) ITO line (35 쨉m in width, 200 units); (BB) ITO line (35 쨉m in width, 199 units)