LIQUID CRYSTAL ALIGNING AGENT AND LIQUID CRYSTAL DISPLAY ELEMENT

• Main Authors: HIRASAWA HIROSHI, AKIIKE TOSHIYUKI, ABE TASUKU
• Format: Patent
• Language: English
• Published: 06.01.2011
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; 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

PROBLEM TO BE SOLVED: To provide a liquid crystal aligning agent excellent in printing property, to form a liquid crystal alignment layer excellent in seizing property.SOLUTION: The liquid crystal aligning agent contains a polymer selected from a group consisting of polyamic acids obtained by reacting tetracarboxylic acid dianhydride and diamine containing a compound expressed by formula (A), and polyimide prepared by dehydrating and ring-closing the polyamic acids.