Patent ID: 7852002

Claim:
A plasma display device, including: a plasma display panel (PDP); an EMI shielding sheet, comprising a plurality of shielding layers, each of the plurality of shielding layers including a dielectric layer formed of an oxide material, a metal layer that shields electromagnetic waves, and a protective layer positioned on at least one of an upper surface or a lower surface of the metal layer so as to protect the metal layer, wherein the dielectric layer is thinner than both the metal layer and the protective layer, and the metal layer thicker than both the dielectric layer and the protective layer; and a refractive sheet that absorbs external light and transmits light emitted by the PDP, the refractive sheet comprising: a base unit having a plurality of grooves formed in a first surface thereof; and a plurality of pattern units provided within the plurality of grooves, wherein each of the plurality of pattern units includes a lower end that is positioned adjacent to the first surface of the base unit within a respective groove, and an upper end positioned in a bottom of the respective groove and oriented toward a second surface of the base unit opposite the first surface thereof, and wherein the lower ends of the plurality of pattern units are concave such that they extend into the plurality of grooves formed in the first surface of the base unit.