| 摘要 |
<p>The present invention provides an optical film capable of ensuring excellent scratch resistance as a thin hard coating layer. The present invention relates to an optical film comprising: a base film; an optical pattern layer formed on one surface of the base film; and a hard coating layer formed on the other surface of the base film. The hard coating layer includes 0.00025 foreign substances or less per unit area (cm^2). After an optical film having a dimension of 320 mm×180 mm×170μm is left at a temperature of 60°C at a relative humidity of 75% for 24 hours, a sheet winkle is 5 mm or less. The optical film is excellent in luminance because the hard coating layer is formed by using a specific roll, is excellent in dimensional stability due to a low bending quantity, and is excellent in reliability because the number of the foreign substances per unit area of the hard coating layer is minimized.</p> |
