Quote Originally Posted by lord jackel View Post
Plasma - same thing do really have any gas in them...they use plasma which is also a liquid crystal. Unlike LCD that vibrates Plasmas go from solid to "liquid" and back and forth. This essentially opens/closes the pixel releasing the light.
Plasmas use natural gases (xenon, neon, etc) that glow and produce their own light when electrically charged. Since they don't have back-lights (like LCDs), they are able to produce true blacks -- no electric charge = no light whatsoever.