OPTICAL FILM, PROCESS FOR PRODUCING THE SAME AND DISPLAY APPARATUS

摘要

A lens film with small warpage even when a transparent base is thin is provided. Pole prisms 12B2 made of a hardening resin are arranged along the extending direction on a transparent base 12B1 made of a flexible material. The transparent base 12B1 has a depression 12B5 according to a valley 12B3 between the pole prisms 12B2 adjacent to each other. The pole prism 12B3 has a sloping face 12B6 extending to an inner wall of the depression 12B5. The transparent base 12B1 is in contact with the valley 12B3. A layer not functioning as a prism, that is, a so-called skirt layer does not exist between the transparent base 12B1 and the pole prisms 12B2.