Optically anisotropic film, optical film, and display device

An optically anisotropic film comprising:

• a liquid crystal compound;
• and
• a dichroic substance,
• wherein the liquid crystal compound is vertically aligned,
• the dichroic substance forms an arrangement structure,
• in a case where, in a cross section observed with a scanning transmission electron microscope, a length of a major axis of the arrangement structure is defined as L, and a length of a minor axis of the arrangement structure is defined as D, 16 or more arrangement structures satisfying L≥30 nm are observed per 40 μm2, and
• wherein a ratio of the number of arrangement structures in which an angle between the major axis of the arrangement structure and a normal direction of the optically anisotropic film is 20° or greater to the number of the arrangement structures is 28.0% or greater.