LED is the abbreviation for Light Emitting Diode, which refers to a small and efficient light source that emits light when an electric current is passed through it. QLED is the abbreviation for Quantum Dots Light Emitting Diode, which is the future or next generation of television displays marketed and distributed by Samsung to better describe their newest and advanced LED Televisions.
LED TVs are like LCV TVs that incorporate light-emitting diodes to backlight display instead of the normal standard cold cathode fluorescent lamps (CCFL) used in most of the LCD televisions. In technical terms, LED refers to a small and very efficient light source that emits light when an electric current runs through it.
QLED Televisions, as the name suggests, uses the quantum dot technology in the emission of light, which means it adds an extra layer of some tiny particles in front of a regular LED backlight panel, which usually results in greater color accuracy and more pure, saturated colors.