公开(公告)号：US20220404535A1

公开(公告)日：2022-12-22

申请号：US17890253

申请日：2022-08-17

Applicant: FUJIFILM Corporation

Inventor： Yutaka NOZOE ,  Kunihiro KASEZAWA ,  Koji IIJIMA

IPC: G02B5/30

Abstract: According to the present invention, provided are an optical laminate which has excellent adhesiveness between two optically anisotropic layers, and in which an A plate or a layer obtained by fixing a twist-aligned liquid crystal phase, which is as an optically anisotropic layer, has excellent liquid crystal alignment properties, a polarizing plate, and an image display device. An optical laminate of the present invention has: a first optically anisotropic layer formed of a first liquid crystal compound; a second optically anisotropic layer formed of a second liquid crystal compound; and a mixed layer which is disposed between the first optically anisotropic layer and the second optically anisotropic layer and contains a component derived from the first liquid crystal compound and a component derived from the second liquid crystal compound, the first optically anisotropic layer is a C plate, the second optically anisotropic layer is an A plate or a layer obtained by fixing a twist-aligned liquid crystal phase, the mixed layer further contains a photo-alignment compound, and in an analysis of components of the optical laminate in a depth direction by time-of-flight secondary ion mass spectrometry with ion beam irradiation from a surface of the optical laminate on a first optically anisotropic layer side toward a second optically anisotropic layer side, predetermined requirements are satisfied.

公开(公告)号：US20220381953A1

公开(公告)日：2022-12-01

申请号：US17878873

申请日：2022-08-01

Applicant: FUJIFILM Corporation

Inventor： Kazushige NAKAGAWA ,  Hideyuki NISHIKAWA ,  Masato NAKAO ,  Shunya KATOH ,  Hiroyuki HAGIO ,  Yutaka NOZOE ,  Kunihiro KASEZAWA ,  Yuki NAKAMURA

IPC: G02B1/111 ,  C09K19/56 ,  C09K19/38

Abstract: The present invention provides an optical film having a liquid crystal layer having excellent durability, and a liquid crystal film. The optical film of the present invention has an organic base material and a liquid crystal layer disposed on the organic base material, the liquid crystal layer contains a photo-alignment compound, and in the liquid crystal layer, the photo-alignment compound is unevenly distributed on a side of the organic base material.