Definition: QLED

(Quantum dot LED) A display technology that uses phosphorescent crystals to improve the LED backlight on an LCD TV. In 2017, Samsung introduced its QLED line of 4K TVs, which are LCD-based TVs augmented with quantum dot nanocrystals.

QLED TVs, which come in sizes up to 98 inches, are highly praised for their viewing quality and compare favorably with OLED. However, OLEDs, which are lighter, thinner and use less power, are said to have the best viewing angle.

Neo QLED ("New" QLED)
In 2021, Samsung launched its Neo QLED line of TVs, which uses smaller LED backlight particles. Neo QLED provides a wider range of brightness and better contrast ratio. See OLED, QD-OLED, 8K TV, LED TV and SUHD.

QLED Layer - Red and Green Quantum Dots

QLED TVs add a layer of red and green nanocrystals between the blue backlight and the LCD layer. The blue light combines with the red and green crystals and generates a backlight that is much whiter.

QLED 8K TVs

Within a couple years, 8K TVs by Samsung began to proliferate featuring the QLED technology.