| 摘要 |
<p>An optical film (F) on which a cured sheet (2) has been formed on a film substrate (1) having a thickness of 10 to 40μm, wherein the regions from both end parts of the film substrate (1) in the width direction to 50 mm are specified as a first region (R1) and a second region (R2). The cured sheet (2) is formed on the film substrate (1) so as to cover 20 to 100% of the first region (R1) in the width direction and 20 to 100% of the second region (R2) in the width direction. The surface of the cured sheet (2) in the first region (R1) and the second region (R2) is knurled after formation of the cured sheet, whereby an uneven knurled part (3) is formed. The knurled part (3) is formed on the surface of the cured sheet (2) across 3 mm or more in the width direction from each end part of the cured sheet (2).</p> |
