Optical film, polarizer protective film, transfer body for polarizer protective film, polarizing plate, image display device, and manufacturing method of polarizer protective film

摘要

An optical film which can attain thickness reduction and can improve the adhesiveness of a 1st functional layer and a 2nd functional layer, a polarizing plate provided with such an optical film, and an image display device are provided. According to one aspect of the present invention, it is an optical film 10 including a light-transmitting substrate 11 , a first functional layer 12 , and a second functional layer 13 in this order, and the first functional layer 12 . and at least any one of the second functional layer 13 contains an ultraviolet absorber, is provided between the first functional layer 12 and the second functional layer 13 , and the first functional layer 12 and the second functional layer Adjacent to (13) and further comprising a mixed layer (14) containing a component of the first functional layer (12) and a component of the second functional layer (13), the first functional layer (12) and the second function The total film thickness of the layer 13 and the mixed layer 14 is 1 µm or more and 10 µm or less, and the mixed layer ( The optical film 10 whose ratio of the film thickness of 14) is 0.6 % or more and 40 % or less is provided.