HARD COAT FILM, POLARIZING PLATE, AND IMAGE DISPLAY APPARATUS

摘要

Provided is a hard coat film, including: a transparent film; and a hard coat layer formed on the transparent film, in which: the surface free energy of the hard coat layer is equal to or more than a certain value; the hard coat film has a mixed region in which a component of the transparent film and a component of the hard coat layer are mixed; the refractive index of the mixed region continuously changes toward the thickness direction of the hard coat film; and a refractive index change gradient falls within a certain range.

主权项

1. A hard coat film, comprising:
a transparent film; and a hard coat layer formed on the transparent film, wherein: the hard coat layer has a surface free energy of 30 mN/m or more; the hard coat film has a mixed region in which a component of the transparent film and a component of the hard coat layer are mixed; a refractive index of the mixed region continuously changes toward a thickness direction of the hard coat film; and a refractive index change gradient a (μm−1) specified in the formula (1) satisfies a relationship of 0.003≦a≦0.018:
a=|nA−nB|/L  (1)in the formula (1), nA represents a refractive index intrinsic to the hard coat layer, nB represents a refractive index intrinsic to the transparent film, and L represents a thickness (μm) of the mixed region.