| 摘要 |
<p>An optical film has a first surface and a second surface facing each other, wherein a pattern with multiple engraved grooves having curved surface, and have the length larger than the width on the first surface. The multiple grooves are two-dimensionally arranged in the first direction and the second direction, has the shape of the cross section on the first surface of the grooves be an anisotropic shape with the different length in a first axial direction and the length in a second axial direction perpendicular to the first axis, and includes high refraction index pattern layer made of a material of refraction index of one or more; and a low refraction index pattern layer including multiple filling parts filling the multiple grooves, and made of a material having refraction index lower than the refraction index of the high refraction index pattern layer.</p> |
