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Quantum dots Vs OLED: What's best for TV displays?

Quantum dots Vs OLED: What’s best for TV displays?

By BizLED Bureau

Jan 11, 2017: There is no doubt that everybody desire bright color on their TV sets. However, when it comes to paying extra for added features, most of them back out.

Paul Gagnon, director of TV Research at market-watcher IHS said that in 2010, the global TV sales witnessed $118 billion growth but since then the figure has dropped down. The TV market reduced to $90 million in 2015 and it is likely that to reduce further to $10 billion by 2020, Paul Gagnon added. He was spaeking at Display Week, a conference jointly sponsored by IHS and SID (the Society for Information Display) and held in San Francisco’s Moscone Center.

Difference between QDs and OLEDs

Quantum dots (QDs) will facilitate 8K TV displays. On the other hand direct matrix OLED (AMOLED) backlighting will support 4K TV displays. The main focus of difference between the two is the way each produces colors in TV displays. Paul O’Donovan, a consultant says that OLEDs are pure source of light. They are emissive and produce blue, green and red light within an extremely thin spectrum.

READ ALSO: Quantum dots enhance light to current conversion in semiconductors

As against this, the QDs used in latest LCD displays are semiconductor crystals, which alter blue light to green or red by controlling the wavelength of the backlighting. O’Donovan said that although the color control is exceptionally precise for both these technologies, OLEDs as an emissive expertise will have an improved long-term potential.

Quantum dots Vs OLED: What’s best for TV displays?

The developments in QD manufacturing will facilitate QD TVs screens within 2018, said Jason Hartlove, CEO of Nanosys. He also added that the company is aiming at the 60-inch TV class. With a 15 nm color resolution, QDs can alter these colors in an extremely precise manner. Hartlove also claimed that QDs cover 85% of the visible spectrum whereas it is only 65% for OLEDs.

The cost factor

Furthermore Hartlove pointed out that one of the core reasons to choose QD over OLED is cost. While an AMOLED layout current cost $150/sheet, QD enhancement sheets cost only $60 per square meters.

Quantum dots TV displays retain numerous benefits of LCD’s lower production expenses. The QD filter layer does not require massive cost, since it is merely a mixed range of red and green dots. This adds no more than $100 to the price of a large-size TV. But such small costs aren’t always precisely reflected in customer prices and the declining cost of OLED can make QD technology a tough sell in lower cost products, where LCD is commonplace at present times.

There is no doubt that quantum dot is a feasible opponent to OLED, however it is more of a development of LCD than an expected successor to OLED panels. Both technologies consist of pros and cons, much, but quantum dot panels close some of the most distinguished gaps between the two. It is likely that several advanced quantum dot and OLED based devices will make their way to the market in the near future.

READ ALSO: Quantum Dots to bring 1 million colors to TV, smaller screens

With the transformation of TV technology from TFT-LCDs to AMOLEDs, experts are saying that the Korean manufacturers will dominate. However, their success will depend on how they can reduce the cost with all added features.

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