摘要:
This optical film comprises: a recessed and projected structure layer that forms one surface of the optical film; and an adhesive layer that forms the other surface of the optical film. The recessed and projected structure layer contains 1-28% by mass of first fine light diffusing particles relative to the total mass of the recessed and projected structure layer, and the adhesive layer contains 1-40% by mass of second fine light diffusing particles relative to the total mass of the adhesive layer. This surface light emitting body comprises the above-described optical film.
摘要:
An optical film production method for suppressing air bubbles in microlenses, comprising rotating a roll die having a plurality of concave-shaped microlens transfer portions on the surface and running a substrate in the rotation direction; supplying an active energy ray-curable composition β onto a coating roll adjacent to the roll die surface, flattening the composition β, coating the flattened composition β on the roll die surface; supplying an active energy ray-curable composition α on the substrate and coating the composition α on a surface of the substrate; associating the compositions α and β between the roll die and the substrate to form a liquid pool; and irradiating a region between the roll die surface and the substrate surface with an active energy ray so the compositions α and β are sandwiched between the roll die surface and the substrate surface to cure the compositions α and β.
摘要:
This optical film includes a substrate and a plurality of convex microlenses arrayed on the substrate. The microlenses have an α-region and a β-region. The β-region occupies the outer portion of the convex shape of the microlenses, and is positioned in a manner so as to cover the α-region. In an adhesion test conforming to ISO 2409 for measuring the adhesiveness of the substrate and the optical film, the test result is class 0 or class 1.