Anisotropic scattering film and liquid crystal display

摘要

Provided is an anisotropic scattering film comprising a micro-porous film and a substance in micro pores of said micro-porous film, wherein the micro pores observed on the surface of the film are substantially in the form of an ellipse, the ratio of the major axis to the minor axis (major axis/minor axis) of said ellipse is greater than 1, the minor axes of the micro pores are smaller than the wavelength of light, the major axes of the micro pores are oriented in substantially one direction, the refractive index of the substance in micro pores of the micro-porous film differs from the refractive index of the micro-porous film, and the anisotropic scattering film has scattering anisotropy to a polarization component of polarized light. The anisotropic scattering film has high transmittance and excellent scattering property, and a liquid crystal display having high luminance can be obtained by using the anisotropic scattering film.