Patent ID: 7813038

Claim:
A light-scattering film comprising: a transparent support; and a light-scattering layer, wherein when substantially parallel light is incident on a surface of the light-scattering film at an incident angle of 5°, Reflection coefficient B represented by formula 2 is from 2.0 to 5.0: Reflection coefficient B= 2.2×log 10( Rs )−7.5×log 10( A )+5.9 Formula 2 wherein Rs is a 5° specular reflectance, and A is Scattering coefficient A represented by formula 1: Scattering coefficient A= 1/(10 ×|dR rel(θ)/ d θ|max) Formula 1 wherein R(θ) is a reflectance at an angle θ with respect to a normal line to the light-scattering film and in a plane defined the normal line and an incident direction of the substantially parallel incident light, and Rrel(θ) is a value obtained by normalizing R(θ) by the reflectance of regular reflection.