Polymer film
AssigneesMgc Filsheet Co., Ltd., Mitsubishi Gas Chemical Company, Inc.
InventorsKenji Kato, Katsushige Hayashi, Jun Yokoyama
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Abstract
The present invention can provide a polymer film having an Ra (arithmetic average roughness) of 0.5 μm to 2.5 μm, an Ry (maximum height) of 3 μm to 11 μm, an Rz (ten-point average height) of 3 μm to 8 μm, and a light transmittance of 85% or higher. A preferable embodiment of the present invention can provide, at the same time, an optical diffusion function, an improved luminance, a transmittance and the like which are of a sufficient level not realized conventionally. In a still preferable embodiment, Sm (average concave-concave/convex-convex interval) of 90 μm to 160 μm and the average inter-local peak interval (S) is 5 μm to 15 μm.
Claims5
A polymer film having an arithmetic average roughness Ra of 0.5 μm to 2.5 μm, a maximum height Ry of 3 μm to 11 μm, a ten-point average height Rz of 3 μm to 8 μm, and a light transmittance of 85% or higher.
Dependencies are inferred from the claim text.