What Is QD-OLED?

The next big thing since OLED.

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sony tv with samsung qd led display
Image: Sony

QD-OLED is a new display technology that merges quantum dots with organic light-emitting diodes (OLED). It aims to deliver better color accuracy than OLED displays and costs significantly less to manufacture.

Right now, most quantum dot screens come coupled with an LED architecture, also known as QD-LED, that hampers their true potential. In its QD-OLED form, quantum dot displays would overcome this drawback. This would allow for vivid color reproduction and higher peak brightness.

Back in 2019, Samsung Display had announced that it was developing a QD-OLED screen. At CES 2022, Sony confirmed that the same screen would finally ship in a new flagship Bravia QD-OLED TV, scheduled for release later.

samsung qd oled display technology
Image: Samsung

QD + OLED: Combining The Best Of Both Worlds

The currently available QLED displays include a blue LED light source that passes through quantum dots (QD) to produce red and green light. The red, green, and blue colors combine to form white light without losing brightness. Moreover, the QDs also disperse light in multiple directions so that there’s no dimming when looking at the screen from an angle.

However, these QLEDs lack the contrast capabilities present in OLED displays. How OLEDs can turn off individual diodes to display rich black shades is a big factor for this. But, at the same time, OLED involves passing a near-white light through color filters that restrict peak brightness and diffuse light mostly in a straight direction. This accounts for lower brightness and poor viewing angles in OLED screens compared to QLEDs.

A QD-OLED display combines these two technologies such that they complement each other. So, this way, you get a stunning range of colors, virtually infinite contrast, and remarkable viewing angles.

QD-OLED vs. OLED: Which Is Better?

When it comes to showing brighter colors, QD-OLED covers 93% of our visible spectrum and produces realistically accurate shades. Moreover, it retains the deeper blacks and superior contrast of OLED screens.

The QD-OLED display outperforms its rival in screen brightness, delivering up to 2000 Nits. OLED displays usually only manage screen brightness for up to 1000 nits.

The new display technology edges ahead of OLED in the department of viewing angles. This is due to the increased diffusion of light in QD-OLEDs, thanks to the use of quantum dots instead of color filters (used in OLED) to emit various colors.

With a cheaper manufacturing cost, all these plus points make QD-OLEDs the next big thing in display technology and an improvement over OLEDs.

If you like this simple explainer, check out our Short Bytes section. We take complex tech topics and break them into short, easy-to-understand articles.

Priye Rai

Priye Rai

Priye is a tech writer at Fossbytes, who writes about gaming and anything remotely related to tech, including smartphones, apps, OTT, etc. He prefers to be called a "video game journalist" and grimaces when he doesn't get to be "Player 1." If you want to talk about games or send any feedback, drop him a mail at [email protected]
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