Patent ID: 7362042

Claim:
A plasma display device, comprising: a plasma display panel; a chassis base disposed substantially parallel to the plasma display panel; and a thermal conduction medium interposed between the plasma display panel and the chassis base; wherein the thermal conduction medium is made of a composite sheet comprising at least one high thermal conductivity layer, made of a material of a high thermal conductivity, alternating with at least one low thermal conductivity layer, made of a material of a low thermal conductivity less than the high thermal conductivity; wherein said at least one high thermal conductivity layer is made of at least one material selected from a group consisting of carbon, carbon nanotubes, copper, aluminum, gold, silver, bronze, iron, and zinc; wherein said at least one low thermal conductivity layer is made of an acryl-based high polymer adhesive; and wherein the thermal conductivity of the composite sheet in the planar direction is in a range of 5 times to 500 times the thermal conductivity in the thickness direction thereof.