plasma display panel 
An emissive flat-screen technology in which ionized gas is sandwiched between panels of glass that are embedded with wire. The wires meet at right angles, creating pixels. Images are created by sending an electrical current through selected intersections, causing the gas to break down at those points and produce plasma discharges that excite nearby phosphors and cause them to glow. These displays are slim (about 4 inches deep) and can be created in sizes as large as 60 inches diagonally; they are generally used in flat-panel TVs.