OPTICAL FILM PRODUCTION METHOD, OPTICAL FILM, SURFACE LIGHT-EMITTING BODY AND OPTICAL FILM PRODUCTION DEVICE

摘要

The present invention relates to an optical film production method for suppressing the remaining of air bubbles in microlenses, and in particular, an optical film production method comprising a step of rotating a roll die (51) having an outer circumferential surface having a plurality of concave-shaped microlens transfer portions disposed thereon and running a substrate (22) in the rotation direction; a step of supplying an active energy ray-curable composition ² onto a coating roll (53) disposed to be adjacent to the outer circumferential surface of the roll die, flattening the active energy ray-curable composition ² by a flattening means, coating the flattened active energy ray-curable composition ² on the outer circumferential surface of the roll die; a step of supplying an active energy ray-curable composition ± on the substrate and coating the active energy ray-curable composition ± on a surface of the substrate; a step of associating the compositions ± and ² at an association portion between the roll die and the substrate to form a liquid pool; and a step of irradiating a region between the outer circumferential surface of the roll die and the surface of the substrate with an active energy ray in a state in which the compositions ± and ² are sandwiched between the outer circumferential surface of the roll die and the surface of the substrate to cure the compositions ± and ².