| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical sheet, such as a light condensing sheet, having a lens shape shaped on the surface thereof, the optical sheet preventing scratches thereon without the need for a protective sheet, even when only the optical sheets are laid to overlap each other. <P>SOLUTION: In the optical sheet for a display device having one side surface on which the lens shape is shaped, the surface roughness Ra of the other surface on which the lens shape is not shaped is in the range of 0.2-0.6 μm, and the dynamic friction coefficient of the surface on which the lens shape is not shaped is ≤0.1. <P>COPYRIGHT: (C)2010,JPO&INPIT |
