What’s a QLED TV and a Quantum dot?
A QLED TV is a Quantum dot-based TV, and that Quantum dot material is what makes QLED TVs different from conventional ones.
So, what is a Quantum dot?
Quantum dots are ultra-fine semiconductor materials of nanoscale size. These dots produce different colours of light depending on the particle size—the larger the size the more red the colour, and the smaller the size the more blue the colour. They are able to emit precise coloured light because particle sizes adjust at quantum-level velocities, resulting in accurate and efficient light emissions. The greater efficiency in luminance brings about tremendous changes in overall picture quality.
about QLED TVs?
QLED TVs take advantage of the many unique characteristics that Quantum dots offer such as "high luminance". Luminance refers to how bright a screen looks and that brightness is an important factor affecting other elements of image quality. First, contrast ratio is naturally improved when brightness is higher. When bright and dark representation of videos and images can be widely expressed, it's known as HDR (high dynamic range). This HDR, which is an essential component of picture quality, is enhanced further providing crisp and rich images.
Now, let's have a look at how all this affects colour.
The effect of brightness on overall colour quality is simple. For example in the red colour spectrum there is a range of bright and dark reds, but QLED TVs express this range of colours better. This unique QLED technology, along with other black implementation technologies such as Direct Full Array, provides a completely different picture quality and a more realistic viewing experience compared to non-QLED TVs.
What's the difference?
QLED vs OLED
With the arrival of QLED TVs, many people are interested in what makes them different from OLEDs. It all boils down to different technological principles. QLED TVs use Quantum dots which are inorganic, durable, stable and allow for excellent colour and brightness. Meanwhile OLED TVs use a controversial organic material that leaves them susceptible to image retention.
Since TVs are not frequently replaced, you should consider carefully whether there are any factors that might lead to regret after purchase. As mentioned above, OLED TVs cannot avoid Burn-in due to the nature of their self-illuminated organic displays. Burn-in is a permanent defect in the panel where a residual screen image appears permanently on screen. If you think about frequently displayed images such as broadcaster logos, they are in the same fixed area for a certain period of time. Repeatedly displaying the same logo in the same place is enough to result in Burn-in. QLED TVs have the advantage in that you can watch your content for long periods of time without having to worry about Burn-in—allowing for an overall longer TV lifespan.
Knowing all this now, which do you think is the better option for you to invest in?
Reviews from real
QLED TV users
If you plan to get a QLED TV, you'll naturally want to see testimonials from real users and see how satisfied they are. Let's take a look at some of the QLED TV reviews from consumers who have purchased them.
Such a clear picture.”
75” Q950R QLED / May.2019 / UK / samsung.com
65" Q90R QLED / Apr.2019 / USA / samsung.com
65" Q80R QLED / Jul.2019 / Australia / samsung.com