METHOD FOR MANUFACTURING A MASTER PLATE, METHOD FOR MANUFACTURING AN ORIENTED FILM, METHOD FOR MANUFACTURING A RETARDATION PLATE, AND METHOD FOR MANUFACTURING A DISPLAY DEVICE

摘要

Disclosed are: a method for manufacturing an oriented film whereby a non-oriented thin-film layer can be omitted; a method for manufacturing a master plate that can be used in the manufacture of such an oriented film; a method for manufacturing a retardation plate using such an oriented film; and a method for manufacturing a display device provided with a retardation plate using such an oriented film. A mold (210) is irradiated and scanned by femtosecond laser light with a fluence of 0.04-0.12 J/cm², a repetition frequency of 1000 Hz, and a wavelength of 800 nm. Since this forms a mold (210) that is textured with a pitch of at most half the wavelength of the laser light (i.e., at most 400 nm), said mold (210) can be used to manufacture a substrate (11) (oriented film) that is textured with a pitch of at most half the wavelength of the laser light (i.e., at most 400 nm).