Influence of Irradiation condition on Photoalignment layer with Polymer Bearing Photoreactive Side Chain

摘要

The retardation of prepared photoalignment films with different polarized UV exposure energy was evaluated for confinning N4 =125nm at 500nm. Retardation properties are very much dependent on the UV exposure energy. This result indicated the interchain [2+2] cycloaddition contributes to the enhancement of LC orientation on the photoalignment layer.