The Nanosys company took advantage of CES 2023 to unveil its first prototype QD-LED screen. This is a 6-inch model that does not use a backlight system. Each pixel is able to emit its own light like OLED screens. Cnet’s Geoffrey Morrison is one of the few people to have been able to approach the prototype. Here is what he says about it:
And there, on a table, furthest from the door, was the 6-inch prototype that I had come to see. A maze of wires connected it to printed circuits at several levels. It was incredibly flat, like a shiny, vibrant sheet of paper. A gallery of colorful images scrolled across the screen, the *de facto* standard content of pre-production demonstrations. It felt like I was watching something from the future, and it was. It’s so cutting edge that Nanosys told me I could only show a blurry image and couldn’t make a video.”
Remember that Samsung somewhat overused the term Qled with the release of its televisions in 2017. Indeed, Samsung Qled televisions do not use the Quantum-Led technology we are talking about at all – and from which the name Qled was initially taken. The latter is in fact intended to compete with the OLED by replacing the Led light source with an electrical source. Each sub-pixel, called “Quantum Dot”, would then be able to emit its own light, like OLED technology. However, the Qled televisions currently marketed by Samsung always use a VA or IPS type LCD panel, an Edge-Led, Full Led or Mini-Led backlighting system and a quantum dot filter. Nanosys does not speak of Qled technology, but of NanoLED, a technology that is sometimes found under the acronyms QDEL, ELQD, QD-LED, EL-QLED or even AMQLED. For Nanosys, NanoLED technology represents the future of display due to its higher brightness, infinite contrast and better power efficiency.
A limited lifespan for the moment
Before considering integration into consumer products, the technology must be made reliable. Nanosys works on the red, green and blue sub-pixels, but the latter still poses some problems and has a reduced lifespan. For Nanosys, the first NanoLED screens will not be marketed before 2025, or even 2026. The 6-inch NanoLED prototype presented at CES 2023 is manufactured by the Japanese company Sharp, which had already demonstrated it before. It displays a definition of 960 x 540 pixels. Samsung and TCL are also working on QD-LED screens, as is the Chinese company BOE Display, which already presented a prototype in 2017. According to Nanosys, its QD-LED screen is the first of its kind, since it is currently the only functional emissive quantum dot display devoid of heavy metal, and therefore compatible with future commercialization.