| 摘要 |
[Problem] To provide an anisotropic optical film which exhibits high linear transmittance in a non-diffusion region, and which, as a result of being provided with a broad diffusion region in the MD and TD directions, is capable of solving problems such as glare and the occurrence of abrupt changes in brightness. [Solution] Provided is an anisotropic optical film having, stacked therein, at least two anisotropic light-diffusion layers having linear transmittances which change in accordance with the angle of incident light. Each of the anisotropic light-diffusion layers is provided with a matrix region, and a plurality of columnar regions having refractive indices which are different to that of the matrix region. At least two kinds of anisotropic light-diffusion layers (a, b), in each of which the aspect ratios of the major axes to the minor axes of the columnar regions in a cross section orthogonal to the alignment direction are different to those of the other, are employed as the anisotropic light-diffusion layers. The aspect ratios of the major axes to the minor axes of the columnar regions in the anisotropic light-diffusion layer (a) are less than 2. The aspect ratios of the major axes to the minor axes of the columnar regions in the anisotropic light-diffusion layer (b) are within the range 2-20 inclusive. |
