Topic: Multifunction windows.

[Nemesis]

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Function 1/ Furthermore, unlike other PV systems, these panels are transparent and can be integrated into almost any part of a building without obscuring light or ruining the building?s aesthetic appearance

Function 2/ As a solar photovoltaic (PV) panel, PV-TV can generate 3.8 watts of electricity per square foot, an above-average level of efficiency.

Function 3/ But PV-TV?s most unusual feature is its ability to act as a full-color internal and external screen. A picture or advertisement projected from inside a structure can be seen within that building, with PV-TV acting as a regular display screen. On the outside of the building, the material can function as a giant billboard.