| abstract |
The present invention provides a filter for a plasma display which has excellent transmitted overimage clarity and also has an extremely excellent effect of reducing reflection. It has a laminated structure including at least a transparent substrate, One surface has a center line average roughness Ra of 30 to 250 nm, a 10-point average roughness Rz of 0.4 to 2.0 μm, an average unevenness interval Sm of 50 to 400 μm, and a number of protrusions of 50 μm or more in height. The following surface waviness structure (hereinafter referred to as A-plane), The other surface has a surface undulation structure in which the center line average roughness Ra is 30 to 300 nm, the 10-point average roughness Rz is 0.4 to 3.0 μm, and the average unevenness interval Sm is 20 to 400 μm (hereinafter referred to as B surface) A filter for a plasma display panel, characterized by [Selection] Figure 1 |