Surface allignment control of liquid crystalline polymer films fabricated by coating

Abstract

We have studied the orientation of liquid crystalline polymer (LCP) film. In this research, the functionalized and surface alignment controlled LCP film was fabricated by over-coating fluorine-containing polymer onto the LCP film. The single LCP film has hybrid alignment and large dependence on incident light angle on retardation. In contrast, fluorine-containing polymer over-coated LCP film has lower dependence on incident light angle. It suggests that homogeneous alignment film was obtained by using fluorine-containing polymer / LCP bilayer system. We will also describe in detail concerning the property of overcoat material and the effect of annealing condition of overcoat film.