OPTICAL FILTER, OPTICAL FILTER FOR DISPLAY, AND DISPLAY AND PLASMA DISPLAY PANEL PROVIDED WITH THE OPTICAL FILTER

摘要

An optical filter having excellent durability and a display including the same is provided. The optical filter contains therein a transparent substrate, a mesh-shaped electromagnetic shield layer provided on the substrate, and a functional layer provided on the electromagnetic shield layer. The electromagnetic shield layer of the invention is characterized by a surface roughness (Ra) exceeding 0.02 μm.