QLED TV SETS
Have you heard of QLED TV? If you haven’t, you soon will.
Most TV sets sold in the U.S. are based on LCD technology, which is several decades old.
OLED sets have eclipsed LCD. OLED (organic light-emitting diode) TVs, on the market for only a few years, offer the best picture most consumers have seen. They are expensive to manufacture, though, so you’d pay a much higher price for one than you would for an LCD TV.
A new TV technology, QLED, will soon be available, and it may be better than OLED. QLED stands for ‘quantum dot light emitting device’. It may match the nearly infinite contrast ratio of OLED displays, but with higher energy efficiency and a wider, more accurate color gamut.
Quantum dots are tiny molecules that emit their own light when illuminated. The size of the quantum dot determines the wavelength- therefore the color- of the light it emits. Larger ones emit light in the red end of the spectrum. Smaller dots emit light near the blue end.
The disadvantage with quantum dots is that they are difficult to control with the precision necessary for TV sets.
Electroluminescent quantum dots are slightly different. Instead of being activated by light, they are activated by electric current. This offers a far higher degree of control. For a dark pixel, simply switch off the current. It’s much more difficult to do this with light-activated pixels, such as the ones in your LCD set. This is the biggest reason OLED displays have surpassed them.
The disadvantage with OLED displays, beside the expense in manufacturing them, is that getting a wide color gamut requires high energy consumption. Electroluminescent quantum dot displays wouldn’t have this limitation.
We’re likely to see QLED TV sets on the market within a few years. Most of the obstacles that delayed release of OLED apply to QLED , too. With the development work for OLED completed, there probably isn’t much holding back the release of QLED TV.
(To get the most out of any TV set, it helps to have a video streaming service. For this, you’ll need a reliable internet connection. Talk to us. We can help.)