Hi there! Nano is a type of a color filter technology, whereas LED is the lighting technology that LED TVs utilize. Our TU7000 and TU8000 utilize light-emitting diodes (LEDs) to backlight the display. Starting at our Q60T, Samsung utilizes QLED Technology, which is our Quantum Dot technology with 100% Color Volume. Over one billion shades of pure accurate color. With detail at any level of luminance, Quantum Dots are durable and scalable to deliver the same amazing picture across various models. ^Gina