Dai Nippon Printing Co., Ltd.

Yusuke Hiruma

Keiji Kashima

Takashi Kuroda

Tomoyuki Horio

Seiichi Isojima

Takahisa Nomura

Shoji Takeshige

Kana Horii

Makoto Nanaumi

Provided is an optical film which can promise to be thinner and makes it possible to enhance adhesion between a first functional layer and a second functional layer; and a polarizing plate and an image display device both of which include such an optical film. One aspect of the present invention is to provide an optical filmincluding a light-transmitting base material, a first functional layer, and a second functional layerin this order, and further including a mixed layer; wherein at least one of the first functional layerand the second functional layercontains an ultraviolet absorber; wherein the mixed layeris provided between the first functional layerand the second functional layer, is adjacent to the first functional layerand the second functional layer, and contains a component of the first functional layerand a component of the second functional layer; wherein the total film thickness of the first functional layer, the second functional layer, and the mixed layeris 1 μm or more and 10 μm or less; and wherein the ratio of the film thickness of the mixed layerto the total film thickness of the first functional layer, the second functional layer, and the mixed layeris 0.6% or more and 40% or less.

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

A liquid crystal display polarizing plate that can reliably exhibit optical properties and be bonded to a liquid crystal cell without causing degradation of the optical properties. The liquid crystal display polarizing plate includes: a retardation film which has a substrate including a cellulose derivative and a retardation layer formed directly on the substrate and containing the cellulose derivative and a rod-like compound having refractive index anisotropy; a polarizer bonded to the retardation layer of the retardation film and including polyvinyl alcohol; and a polarizing plate protection film bonded to the polarizer.

Liquid crystal display polarizing plate, method for producing liquid crystal display polarizing plate, and liquid crystal display

Growing community of inventors

Tokyo-to, Japan

Yusuke Hiruma