The LED TV is the next evolution of LCD TVs. It is a flat-screen TV that is powered by a liquid crystal display panel. The liquid crystals are aligned with an electrical current. When a light beam strikes the panel, they glow and illuminate the pixels. This is how an LED TV works.
Many people are now switching to LED televisions over LCD or plasma televisions for the very reason that they consume less electricity, produce a brighter screen with better contrast, longer life, and less distortion than a regular LCD TV.