| 摘要 |
PROBLEM TO BE SOLVED: To provide a transparent barrier film having higher gas/steam barrier properties than before. SOLUTION: The transparent barrier film is characterized in that a surface roughness arithmetic average value (Ra) is Ra<10 nm and the maximum height (Ry) is Ry<0.3μm. At least three inorganic matter layers, each of which is free from a hole wherein the depth from an average line is 10 nm or above and an aspect ratio (hole depth/hole diameter) of a hole depth and a hole diameter is larger than 0.2 and not having a local projection, which is characterized in that an aspect ratio (maximum height/minimum width value) of the maximum height and the minimum width value is larger than 0.2, on its surface, are formed on a plastic base material. COPYRIGHT: (C)2005,JPO&NCIPI
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