COMPOSITION FOR FORMING LIQUID CRYSTAL ALIGNMENT FILM, LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY DEVICE

• Main Authors: AKIIKE TOSHIYUKI, TAKAHASHI YOSHITERU, IZUMI KEN ICHI, YONEDA ATSUSHI
• Format: Patent
• Language: English; Korean
• Published: 21.10.2011
• Subjects: ADHESIVES; 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; DYES; FREQUENCY-CHANGING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention relates to a composition for forming a liquid crystal alignment film, a liquid crystal alignment film and a liquid crystal display element. The invention aims to provide a liquid crystal alignment film with a large retardation value, a liquid crystal display element having the liquid crystal alignment film and capable of achieving high display quality in a horizontal electric field way, and a composition for forming the liquid crystal alignment film. The composition for forming the liquid crystal alignment film comprises at least one polymer selected from a tetrabasic carboxylic acid dianhydride and at least having polyamide acids obtained by reactions of diamine compounds of diamines illustrated in the following formula (1) and a group composed of polyimide formed by dehydration and closed loop of polyamide acids.