Optically anisotropic layer and production method therefor, optically anisotropic laminate and production method therefor, optically anisotropic transfer body, polarization plate, and image display device
申请人:ZEON CORPORATION
公开号:US10705274B2
公开(公告)日:2020-07-07
An optically anisotropic layer including a polymer and a compound having a mesogen skeleton, wherein the polymer has a property such that a film of the polymer that is formed by a coating method using a solution of the polymer satisfies nz(P)>nx(P)≥ny(P), wherein nx(P) is a refractive index in a direction which, among in-plane directions of the film, gives a maximum refractive index, ny(P) is a refractive index in a direction which is perpendicular to the direction of nx(P) among the in-plane directions of the film, and nz(P) a refractive index in a thickness direction of the film, and the compound having a mesogen skeleton shows an in-plane retardation with reverse wavelength distribution under specific conditions.
一种光学各向异性层,包括一种聚合物和一种具有中生骨架的化合物,其中聚合物具有这样一种特性,即通过使用聚合物溶液的涂覆方法形成的聚合物薄膜满足 nz(P)>nx(P)≥ny(P),其中 nx(P)是折射率,该折射率的方向在薄膜的面内方向中为最大折射率,ny(P)是折射率,该折射率的方向在薄膜的面内方向中垂直于 nx(P)的方向、ny(P)是薄膜面内方向中与 nx(P)垂直方向上的折射率,而 nz(P) 是薄膜厚度方向上的折射率。