COMPOSITION FOR LIQUID CRYSTAL ALIGNING LAYER, PREPARATION METHOD OF LIQUID CRYSTAL ALIGNING LAYER USING THE SAME, AND OPTICAL FILM COMPRISING THE LIQUID CRYSTAL ALIGNING LAYER

摘要

A liquid crystal alignment film composition, and an optical film prepared by using the composition are provided to improve the adhesion between a base and a liquid crystal alignment film and a liquid crystal alignment film and a liquid crystal film, thereby enhancing the durability of an optical film. A liquid crystal alignment film composition comprises a photoreactive polymer comprising at least one selected from the group consisting of a norbornene-based photoreactive polymer having a cinnamate group, a photoreactive polymer comprising the unit represented by the formula 1, and a photoreactive polymer comprising the unit represented by the formula 2; a multifunctional monomer capable of crosslinking with the photoreactive polymer; a photoinitiator; and an organic solvent.