Patent ID: 9554494
Date: 2017-01-24
CPC Classifications: H05K

Claim:
1. A transparent electromagnetic interference shield comprising: a first transparent substrate; a second transparent substrate; and an electromagnetic interference shielding layer interposed between said first and second transparent substrates and including a transparent conductive polymer film which is formed on said first transparent substrate, and a plurality of metallic warp and weft lines which are laid on said transparent conductive polymer film, said warp lines and said weft lines intersecting one another to form a grid network; wherein said transparent conductive polymer film includes a conductive polymer and surface-modified few-layer graphene dispersed in the conductive polymer, wherein said warp lines are printed on said second transparent substrate, and said weft lines are printed on said second transparent substrate and said warp lines, wherein each of said warp and weft lines has a width ranging from 50 μm to 200 μm, wherein each of said weft lines is spaced apart from an adjacent one of said weft lines by a spacing ranging from 0.5 mm to 1.0 mm apart, and each of said warp lines is spaced apart from an adjacent one of said warp lines by a spacing ranging from 0.5 mm to 1.0 mm, wherein the transparent electromagnetic interference shield has a sheet resistance not greater than 10 Ω/sq.