| 摘要 |
PROBLEM TO BE SOLVED: To easily separate and remove an unnecessary surface protection film from an optical member by forming at least one side outermost surface into a specific low oxygen layer. SOLUTION: At least one side outermost surface of an optical member 2 is formed out of a low oxygen layer 21 containing under 35% oxygen atom and over 60% carbon atom on the element ratio. In this case, the low oxygen layer 21 intends to restrain rise of adhesion force with the lapse of time of a surface protection film 1, and formed out of a substance containing under 35% oxygen atom and over 60% carbon atom on the element ratio. This low oxygen layer 21 is enough to be on the outermost surface of the side covered by the surface protection film 1. Namely the low oxygen layer 21 can be formed as an optical layer such as a polarizing plate or a phase difference plate forming the outermost surface of the optical member 2, or can be formed as an addition layer by a suitable system such as a coat system or a transfer system on the outermost surface of the optical member 2.
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