Wed. Jan 26th, 2022


It's all about the quantum point.

It’s all about the quantum point.
Pictures: Samsung

Every year at CES, we get to see Innovative TV. Some deceptive 3D TVs and rolling screens, anyone? কিছুbut some flat-outs are stunning. This year was about a new display technology called Quantum Dot OLED (QD-OLED) and it is definitely different from your standard OLED flat-screen.

Quantum dots are tiny semiconductor nano-crystals that illuminate a certain color when activated by light, and technology makes images brighter, more vivid, and more accurate and natural in the colors they represent. This technology has been used in television panels A few years nowBut this year is different.

Now TV makers are combining Quantum Dots with OLED, a superior alternative to LCD-LED that provides deep black and sharp contrast, and from there comes the promise of a whole new level of quality. Theoretically, it brings the best brightness, the best contrast, the brightest color and the deepest possible black: suppose QLED is combined with OLED.

Initially developed by Samsung But also available on devices made by other manufacturers, nano-sized particles in QD-OLED vary slightly in size মধ্যে between 2 nanometers and 10 nanometers যা which affects their emission wavelengths and therefore the colors they show when light passes through them.

Dot size affects dot color.

Dot size affects dot color.
Pictures: Samsung

Quantum dots sit on a separate layer, emitting blue light in front of an OLED layer, where it converts pixels into red and green if necessary. Each pixel is basically converted into three subpixels, covered in red, green and blue. All this can be planted in a very compact layer.

New technology brings many benefits. Quantum dots are very powerful, for example, which enables them to hit high levels of brightness and they are very stable – something that has been a problem for OLED displays in the past (and should be less of an issue). Another advantage of QD-OLED is minimal light bleeding in pixels, so white text on a black background will look perfectly crisp and sharp, without any fog around it.

QD-OLED should ensure that colors do not fade in bright areas, while in dark areas, colors remain accurate and well-defined. Viewing angles should be impressive, while speed blurring and ghosting are reduced. You can see why Display Tech is getting so much hype: it promises to upgrade different aspects of the viewing experience.

Note that OLED (organic light-emitting diode) panels use pixels that emit their own light individually, which provides greater accuracy than LCD-LED panels that use a backlighting system. Over time, the gap between these two technologies has narrowed, thanks in part to Quantum Dot – LCD-LED displays have evolved to use multiple dimming zones instead of a large backlight – but OLED is still able to create better contrast and black.

Compared to conventional OLEDs, QD-OLEDs can significantly increase brightness levels, while color gamut coverage is almost equal, Preliminary report. It remains to be seen whether the level of brightness can outweigh the best given by LCD-LED. Like competitive technology You And Mini-LED All the better, and we’ve seen a lot of improvements in these technologies at CES 2022.

Multiple layers come together in QD-OLED.

Multiple layers come together in QD-OLED.
Pictures: Samsung

QD-OLED panels have some drawbacks, of course, the initial price: these QD-OLED panels, like the OLED panels before them, will cost more than your equivalent LCD-LED display. These panels can’t be made virtually small (for the time being), so it will take some time for us to see QD-OLED enter phones and tablets – if ever.

Other QD-OLED products are coming down the pipe, though. Alienware has already unveiled A new curved gaming monitor With a QD-OLED panel, though, we still don’t know how much it will cost (Spoiler alert: Probably a lot). Technology is Sony is coming to TV Even in 2022, and again the price was not announced. And we know Samsung has a QD-OLED display In the pipeline, but so far very little has been confirmed.

Some questions remain about QD-OLED, and to judge how it compares to OLED and LCD-LED we must look at the actual products, but at first glance it looks like a promising display upgrade. For this year — even if none of us can afford it.



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