Polymer dispersed liquid crystal film and manufacturing method therefor

Abstract

A polymer dispersed liquid crystal (PDLC) film achieves a haze (light diffusibility) capable of exhibiting a shielding function, and improved backscattering ratio. The PDLC film according to an embodiment of the present invention includes a first transparent conductive film, a polymer dispersed liquid crystal layer, and a second transparent conductive film in the stated order. The polymer dispersed liquid crystal layer contains a polymer matrix and droplets of a liquid crystal compound dispersed in the polymer matrix. An average particle diameter of the droplets when viewed from a direction perpendicular to a main surface of the PDLC film is from 0.3 μm to 0.9 μm. A volume ratio of the droplets in the polymer dispersed liquid crystal layer is from 20% to 70%. The liquid crystal compound has a birefringence of from 0.20 to 0.50. The polymer dispersed liquid crystal layer has a thickness of from 5 μm to 40 μm.

Dependencies are inferred from the claim text.