Patent ID: 7276849

Claim:
A plasma display panel device, comprising: a plasma display panel; and, a layered plasma display panel filter, comprising: a first layer comprising polyvinyl butyral or ethylene vinyl acetate; a second layer disposed in contact with said first layer, wherein said second layer comprises polyethylene terephthalate, a third layer disposed in contact with said first layer, opposite said second layer, wherein said third layer comprises glass; a fourth layer disposed in contact with said second layer, opposite said first layer, wherein said fourth layer comprises polyvinyl butyral or ethylene vinyl acetate; and, a fifth layer disposed in contact with said fourth layer, opposite said second layer, wherein said fifth layer comprises polyethylene terephthalate, wherein said layered plasma display panel filter has the following cumulative optical properties: global visible transmission expressed as illuminant C of 30% to 70%; transmission at 590 nm of 0% to 65%; transmission at 800 nm of less than 25%; transmission at 850 nm less than 15% transmission between 900 nm and 1100 nm less than 10%; and, color expressed by the L*a*b*-system for a* and b* of between −5 and +5.