An HDTV is nothing more that a TV that supports High Definition. HDTV usually comes in three types: LED, LCD, and Plasma television. LED TVs are actually a type of LCD TV that use LED lighting to create the...

An LCD uses liquid crystals that are sandwiched between two sheets of polarizing material. DLP technology uses a digital micromirror device which comprises around 2 million hinge-mounted microscopic mirrors....