Technology Talk




Television technology is so dynamic that America witnesses an E3 event every 12 months to keep up with the changes in the industry. This expo features all kinds of new TV models flaunting the latest technology for the mass market, as well as for the early adopters. OLED is one such television technology that has been around for quite some time now, but QLED is relatively recent. Both of them are hugely popular in the world of television today. You must have seen a lot of TVs flaunting these two technologies. A lot has been said about both and here is a comprehensive comparison of the two technologies to help you understand them, if you have not been following the buzz.

How do they work?

OLED stands for Organic Light Emitting Diode. This technology uses an organic material that luminesces when electric current passes through it. Each dot on the screen produces its own light, and a whole bunch of them work together in tandem to produce a crisp and clear picture. LG is one company that has really taken the cake when it comes to OLED technology.

QLED stands for Quantum Dot Light Emitting Diodes. In the simplest words, QLED combines two incredible display technologies – OLED and Quantum Dot. Just like OLED, QLED too consists of dots that produce their own light. However, in case of QLED TVs, the dots are made of semiconductor crystals, known as quantum dots or QDs. Samsung and TCL are leading the introduction of this technology to the market.

Quick Comparison Between OLED and QLED

When OLED hit the market, it was the absolute, most perfect TV technology ever. The type of picture quality that it produced was simply not seen with any previous technology. It can produce a wide range of colors, deep blacks, and superb contrasts that render brilliant pictures.

QLED, as an improvement over OLED, significantly improves the picture quality. QLED can produce an even wider range of colors than OLED, which says something about this new tech. QLED is also known to produce up to 40% higher luminance efficiency than OLED technology. Further, many tests conclude that QLED is far more efficient in terms of power consumption than its predecessor, OLED.


What Makes QLED Such a Game-changer?

Well, there are usually only two reasons why a new technology dethrones an old one – better quality, or the cost. In the OLED vs QLED war, both of these factors play their roles.

Before QLED, OLED was the technology that produced the best picture quality. Its competition was LED, which is a far inferior technology. LED uses a secondary light source, which is then maniolpulated to produce desired picture. In contrast, OLED, and later QLED, uses its own light source. Because of this difference, LED technology could never match the contrast ratio of OLED TVs. Even local dimming of the backlights could offer only so much contrast. On the other hand, OLED technology (and QLED too) gives a molecular level control over the picture quality. This is insanely wonderful. So, when it comes to contrast and overall picture quality, OLEDs were the clear winner.

However, OLEDs were and are extremely expensive to make. LED TVs cost just a fraction of what OLED TVs cost. That is why they are so popular even now, despite OLEDs clearly being superior technology. OLED technology took 10 years in the making. Imagine the immense development costs attached to it. Further, the manufacturing of OLED TV is expensive too. The manufacturers try to cut the production cost by using color filters, which negatively affect the quality of pictures. So, there really wasn’t anywhere the OLED TV manufacturers could go, to reduce the prices of OLED TVs. Enter QLED.

QLEDs have already established themselves as a superior technology to OLED. They produce life-like pictures better than anything seen so far. But, what really tips the scale in their favor is their cost of development. Unlike OLED technology, QLED did not take a long time in development. In fact, the architecture of flat QLED TVs is pretty much similar to that of OLED TVs. So, all you need to do now is take OLED technology, use all its knowledge, and use it to start producing QLED TVs. This is an overly simplistic explanation of the situation, but pretty much covers the gist of it. As an end result, QLED TVs will be cheaper to produce than OLED TVs.


At present, Nanosys and QDVision are the major players developing the QLED technology, and are in direct competition for the market share. Naturally, they have not released a lot many details regarding their approach, or vision for the future. But, it may not be wrong to speculate that both their visions will be focused on kicking OLED out of the market, and pushing QLED to replace the gap it leaves behind.


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