You’ve finally decided to buy a 4K TV. And you’ve also narrowed down the brand you want, screen size, and if you should go curved or flat. But wait, there’s one more thing you need to choose. Essentially, you’ve got three main choices today: LED TVs, OLED TV, and quantum dot TVs (now referred to as QLED TV by Samsung). They sound the same, so it can be confusing. And so, here’s “Differences between LED TV, OLED TV and QLED TV”.

Differences Between LED TV, OLED TV and QLED TV
Source: Google Image Search


Let’s start with the oldest and least expensive technology out of the three.

As opposed to conventional LCD TVs, which use fluorescent tubes to illuminate the screen, LED-based LCD TVs use “light-emitting diodes” behind the liquid crystals. The advantages to a back- or edge-lit LED TV are:

  • Greatly improved contrast levels over fluorescent-based LCD TVs, including the ability to show deeper blacks for more depth
  • A much brighter screen, and with richer and more vibrant colors
  • Thinner and lighter, which make them easier to mount on a wall
  • More eco-friendly, because they consume less power than competing technologies
Differences Between LED TV, OLED TV and QLED TV
Source: Google Image Search

Also Read: Top Tricks to Save Your iPhone Memory


Newer OLED TVs (“organic” light-emitting diodes) are made from carbon-based materials that emit light when electricity is applied through them. OLED TVs are TVs that can adjust the luminosity of each of their pixels individually. This allows them to turn them completely off and show pure blacks and infinite contrast. This gives them exceptional picture quality. Many different consumer electronics devices utilize OLED panels because of the advantages they bring:

  • OLED TVs are incredibly thin because each pixel (dot) is its own light source, therefore no backlighting is required. Pronounced “oh-led,” most OLED televisions are only a couple of millimeters thick. OLED TVs are thinner than LED TVs and quantum dot televisions.
  • These televisions deliver unprecedented contrast ratios (the luminance between the brightest whites and the darkest blacks), and exceptional brightness compared to older LED-backlit TVs (the bigger the “nits” number, the higher the brightness).
  • OLED TVs are much more energy efficient than other TV panel types as they sip rather than gulp electricity.
Differences Between LED TV, OLED TV and QLED TV
Source: Google Image Search

QLED/Quantum dot:

QLED stands for Quantum Dot LED TV. There are and will be many different types of quantum dot based display technologies today. Some new architectures are likely to arise in the future as well. Instead of embracing OLED, Samsung has gone all-in on TVs powered by “quantum dot” technology. Quantum dots are teeny “nano” crystals — microscopic dots as small as one billionth of a meter – which are a fraction of the width of a human hair. We’ll cover QLED momentarily, but some advantages to quantum dot:

  • Quantum dot TVs can match the “infinite” contrast ratio of OLED, delivering exceptionally dark blacks and whiter whites, and offer higher brightness than OLED TVs.
  • These TVs boast a wider, more true-to-life color palette – especially when it comes to reds, greens, and cyans – compared to OLED-based displays.
  • Unlike OLED materials, quantum dots are inorganic, which translates to longer-lasting displays and don’t suffer from any “burn-in” (ghost image) issues, though LG has added technologies to mitigate this.


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