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Which TV You should Buy in 2021 for Long Lasting Usages: QLED vs OLED

When we want to buy a television we have the doubt about which panel we should buy. Therefore, we bring you the comparison between QLED vs OLED in order to help you choose between the best panels on the market.

LG brought the OLED , while Samsung tried to answer it with the QLED , but there are big differences between one technology and another. From the outset, the name may confuse the consumer believing that it is the same technology, but the truth is that they have nothing to do with it. We will briefly explain what each panel is and then we will compare them to dispel your doubts.


This panel is used mainly by LG , although it is a technology that the Korean brand shares with other brands such as Sony, Panasonic or Philips. We really have to go back to 2004 to see the first OLED TV, which was introduced by Sony .

It was still a technology that was “green”, but the consolidation comes from the hand of LG in 2010 with the 15EL9500 OLED , a 15-inch TV. However, it was still early and we can talk about the OLED panel seriously from 2013 , although they came to the market with the famous problems of ” burn-in ” or burned .

The acronym stands for Organic Light-Emitting Diode and it is an organic panel that works without a backlight . This system allows each pixel to be illuminated individually, thanks to which the famous pure blacks are achieved.

The lack of backlight is a crossroads: the panel sacrifices itself in brightness , but in dark scenes the image is brutal. It must be said that the result is more than satisfactory because, in this way, a dark scene is much more realistic . On the other hand, we can find LED panels that are brighter than OLEDs, but is it worth it? Later, we will see that brightness and ” nits ” are not everything.

In addition, the OLED panel is composed of carbon (hence it is said to be organic), as well as fewer layers than a conventional LCD-LED panel. This translates into a much lighter weight and a smaller thickness on the TV. This feature may not be as interesting to the user as it will not move the TV around the site.

However, this panel has really good benefits and we should talk about:

0.001 ms response time . As far as televisions are concerned, it is a great advance because LED panels usually come with about 8 ms easily.
Improved refresh rate . To say that this feature depends on the TV, but we will rarely see an LED LCD with 144 Hz refresh rate. In OLED, LG has some option with this feature.
Very good color space . In OLEDs we will see very vivid colors thanks to the fact that the panel contemplates a very wide range of colors.


In this case, we find a technology completely unique to Samsung , although we can see some brands use panels such as TCL . It appears as the alternative to OLED, but will it really be?

The Korean brand explains that the QLED panel is based on Quantum Dots , ultra-thin semiconductors measured in nanometers. All Quantum Dots produce different colors of light (depending on the size of each one), allowing a precise light emission, since they adjust to speeds of quantum level.

Samsung sells us the QLEDs as a ” high brightness ” panel , referring to the brightness of the screen. Hence we see the word ” nits ” everywhere in the advertising of these televisions, an aspect in which they win by a landslide. And is that a high brightness benefits the contrast ratio , as well as the capabilities of HDR (high dynamic range).

Samsung QLED backlight

What about the blacks? Samsung implements Direct Full Array , a backlighting system , and here we are going to expand further. Unlike OLEDs, the QLED is an LED panel that needs backlighting despite the similarity of its name, but we found 3 main systems:

It is the cheapest system and is characterized by putting LED strips at the ends of the panel, being able to find a strip or 2 strips. The disadvantage of this panel is when there is a scene that requires lighting only in the center. Since the LED strips are at the ends, they must go the extra mile to make the center light up, causing unrealistic lighting. In these panels there are no blacks , but grays.
Direct LED . In this case, the LEDs are at the rear and come without Local Dimming (technology that dims areas where light is not required and enhances areas that require brightness). It’s another cheap backlight system, and its contrast is usually low.
Full Array Local Dimming ( FALD ). This system is present in the high-end range and is characterized by having LED diodes throughout the panel , which leads to higher consumption. Removing that, the illumination of the entire panel is much more accurate, allowing more realistic blacks because specific areas can be turned off. It is the best system of the 3, but also the most expensive.

In the case of the QLED , they sell us the Direct Full Array as a solution for pure blacks, but the truth is that it is another backlighting system. The problem here is that we must investigate well the QLED panel we are interested in, since it can be Edge LED or FALD.

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