Plasma technology enables uniform, distortion free viewing and bright, accurate color.
Between the two glass plates there is a space of 0.1 mm containing a special gas, where an electric discharger generates ultraviolet rays. These rays in turn activate the RGB phosphors. The only drawback of the PDP is that it is not practical to build this type in sizes smaller than 20 inches. There are other types of flat screens also availabe using different formats. There are several versions of liquid crystal technology, using different materials and arrangements of the multiple layers used to make a display screen, and some exotic versions are under development.