What is QLED?

With the rapid advancement of flat-panel technology, it can be challenging keeping track of all the different terms manufacturers are using to label their offerings. Samsung, the largest TV-maker in the world, currently brands their top-of-the-line offerings as QLED. But what does QLED stand for and how does it compare to the technologies offered by other manufacturers? More importantly, how can you decide if a QLED TV is right for you?

QLED stands for Quantum Dot Light Emitting Diode. You may be familiar with LED technology, but what is a Quantum Dot and how does it impact the picture quality on an LED TV?

What is Quantum Dot?

Quantum dots are tiny crystals, otherwise known as semiconductor nanocrystals that are so small (2-10 nanometers in diameter) that the naked eye cannot see them. The particular crystals become luminous when light is shone on them. The colour they produce is determined by the size of the crystal and can be precisely tuned to a specific colour.

Unlike OLEDs, now offered in displays from LG, Sony, and Philips, quantum dots do not create their own light. The light in a QLED display is produced by a more traditional LED backlight that shines through the quantum filter of dots tuned to reds, greens, and blues. This finely tuned light then passes through an additional panel of liquid crystals to produce the picture.

Rather than being a brand-new technology, QLED is an enhancement of existing LCD technology. This enhancement provides for purer colours, which shine through the LCD panel with less wasted light creating a brighter, more precise, more colourful picture.

Advantages of QLED

QLED has some advantages over traditional LCD panels and even some over the new OLED technology.


The first advantage is brightness. The latest QLEDs are the brightest panels on the market exceeding the brightness levels of traditional LCDs and OLEDs.


QLED display over a billion shades of true colour with 100% colour volume. This colour range allows HDR (High Dynamic Range) content to come to life and offers a more accurate representation of the colours as the creator captured it.

Size Options

Samsung currently offers a broader range of sizes in QLED over the competitions’ OLED offerings and now offers the largest in its class with a 98-inch model.


Although prices fluctuate wildly, especially when new models are introduced, in general, QLED displays are less expensive than OLEDs. However, they are still more expensive than comparably sized LCDs.

With the vast variety of display options available, consumers must balance quality, features, size, and price. While QLED is a drastic improvement in LCD/LED technology, it is not as groundbreaking as OLED. Yet, QLED has some advantages of its own making it the perfect choice for many buyers. Also, keep in mind that the display technology itself is only part of the whole package of a new television. Manufacturers keep raising the bar in signal processing, sound, and built-in features. This means even more research for your purchase but also more options for finding the perfect display for your needs and budget.