Patent ID: 7094452

Claim:
A method for forming an antireflective member comprising: forming, on a surface of a mold, a roughened surface in a continuous pattern of a fine pyramidal shape or a fine conical shape, wherein protrusions of the roughened surface formed on the surface of the mold have an aspect ratio of not less than 1.0; and transferring the pattern of the roughened surface from the mold to a surface of a transparent substrate at a transfer rate of not less than 70% by a 2P (photo-polymer) molding process to form the roughened surface in the continuous pattern of the fine pyramidal shape or the fine conical shape on the surface of the transparent substrate such that protrusions of the roughened surface formed on the transparent substrate have an aspect ratio of not less than 0.7, wherein a pitch of the continuous pattern of the roughened surface is between 100 nm and 300 nm, and the roughened surface is a diffraction surface with zeroth-order diffraction with respect to visible light.