LIGHT-SELECTIVE REFLECTIVE FILM AND LIGHT-SELECTIVE REFLECTIVE FILM FOR DISPLAYS

摘要

PROBLEM TO BE SOLVED: To provide a light-selective reflective film which exhibits small thermal expansion rate, highly reflective properties for red light and green light, and highly transmissive properties for blue light.SOLUTION: A light-selective reflective film is provided comprising layers A and layers B alternately laminated to form no less than 161 layers. Each of the layers A is made of an aromatic polyester containing an ethylene-2,6-naphthalatedicarboxylate as a main repeating unit and has a layer thickness in a range of 0.06-0.3 μm, and each of the layers B is made of a copolymer polyethylene terephthalate having an ethylene terephthalate unit content of 50-95 mol% with respect to the total repeating units and has a layer thickness in a range of 0.06-0.3 μm. The film reflects red light and green light and transmits blue light.