Production method for substrate provided with liquid crystal alignment film for horizontal electric field-driven liquid crystal display element

• Main Authors: KAWATSUKI, NOBUHIRO, KONDO, MIZUHO, NEGI, TAKAYUKI, KATAYAMA, MASAAKI
• Format: Patent
• Language: Chinese; English
• Published: 16.03.2015
• Subjects: ADHESIVES; 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; DYES; FREQUENCY-CHANGING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED 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 present invention provides a horizontal electric field-driven liquid crystal display element provided with a liquid crystal alignment film with which the ability to control alignment with high efficiency is imparted, and which exhibits excellent burn-in properties, high edge linearity, and little edge bulging. The problem to be solved by the present invention is addressed by employing a production method for a substrate provided with a liquid crystal alignment film, said method wherein: [I] a coating film is formed by applying, to the top of a substrate provided with a horizontal electric field-driving conductive film, a polymer composition including an organic solvent which includes (A) a photosensitive side-chain-type polymer that becomes liquid crystal at a prescribed temperature range, and (B) both a good solvent and a poor solvent of the side-chain-type polymer, and which includes at least 10 mass% of a good solvent having a boiling point of at least 180 DEG C, said organic solvent wherein the good s