The Correlation of Liquid Crystal Alignment and the Amount of Photo-Fragmented Surface Morphology

Abstract

Two photo?fragment activators, AAP and CAP, were synthesized as an additive, and applied for enhancement of azimuthal anchoring energy. During the ultraviolet (UV) exposure, created radicals from each activator generated carbon dioxide, and the surfaces became rough and hard by effects of the gas elimination. Understandably, we studied changes of surface morphology according to the UV exposure and tried to investigate the correlation of liquid crystal alignment with the changes of surface morphology.