QUANTUM MINI LED, QUANTUM MATRIX AND AI: DISCOVERING SAMSUNG 2021 TVS

Mini LEDs are the natural evolution of LCD technology. Many have tried to improve it, also adopting innovative techniques, such as the use of a double LCD panel , one of which is in black and white for the backlight, but in the end LEDs remain the cheapest system for the production of these televisions. LEDs also have another advantage, which is the fact that they have been used for years for the backlighting of LCD TVs and well known by manufacturers, a further reason to favor them over other technologies.  techgeeksblogger

With the passage from LEDs to Mini LEDs, the number of zones that can be managed by local dimming increases exponentially, the use of smaller light emitters allows to condense thousands of them on the back of the panel, thus improving different aspects of the image, from contrast to peak brightness. It is no coincidence that Samsung has chosen this technology for its new Neo QLED TVs , recently arrived in Italy and characterized by many innovations on the technical front.

Quantum Mini LED technology

The Samsung 2021 TV range consists of many models, with features but also very different prices. The Mini LED variants are all placed in the high end of the market, therefore we find the 8K QN900A and QN800A, together with QN95A, QN90A and QN85A, these with 4K resolution.

The Mini LEDs that make up the backlighting of these TVs are 1/40 larger than those used previously, this fact alone makes the evolution present in the new televisions quite clear. We do not distinguish how many LEDs are installed in the new TVs and we do not know the number of zones available for local dimming, unfortunately Samsung has not communicated these data, but the fact remains that the step forward should be significant compared to the past. We use the conditional because, due to the pandemic in progress, we have not yet had the opportunity to see them live , the only way to really understand the improvement obtained with the implementation of the Mini LEDs.

However, Samsung was not satisfied with inserting more light sources, the small size of the Mini LEDs also required a whole new design of the emitters. In the presence of conventional LEDs, in fact, the beam of light emitted was conveyed through a lens , necessary to expand the luminous area as much as possible.

This was necessary due to the reduced number of LEDs used for the backlight, optimizing its performance but at the same time causing more blooming. With the Mini LEDs this does not happen, thanks to the greater number of emitters, the lens is no longer necessary, replaced by a small layer of a material that expands the cone of light. The result is that the light has a more precise and uniform diffusion , able to increase the contrast and above all to reduce the blooming to the minimum possible.

Samsung has made several examples that show the operation of Neo QLED technology, but without a live view it is difficult to understand the quality of the final rendering. On paper, however, we are facing a clear improvement compared to the past , which we can't wait to see firsthand.

Quantum Matrix Technology: what is it?

During the presentation of the QLED 2021 TVs, Samsung talked about 12-bit image management. A statement that can be unsettling, because we know that today there is no 12-bit content dedicated to the consumer world , even the best sources available do not exceed 10 bits. In reality, Samsung was referring to the 12-bit brightness management , which allows you to expand the levels of the gray scale that can be represented on the screen, going from 1024 levels (10 bits) of common LED TVs to 4096 levels (12 bits) of NEO QLEDs.

The presence greater precision is important to better manage the small changes in the brightness of the darker and lighter areas of the image.

In this way, as stated by Samsung, many details can be recovered in these areas of the image , one of the weaknesses of LCD TVs, which especially in the darker areas used a different approach, going to bury the detail by directly turning off the LEDs (but creating a phenomenon called black crush), or leaving them on but thus generating an annoying blooming.

Thanks to the 12-bit backlight management, NEO QLED TVs should therefore recover many details that are impossible to see with a traditional LCD TV.

The new image processor

The adoption of Mini LEDs alone is not enough to improve image quality, all these small light emitters must in fact be managed properly, a task that is up to the electronics. So it's no wonder that a whole new image processor has arrived this year, called the Neo Quantum Processor . This compute unit uses deep learning and artificial intelligence to manage not only the backlight, but also the upscaling.

For this purpose, Samsung uses Machine Learning Super Resolution (MLSR) technology, which uses different neural networks to analyze content, both in low and high quality, thus adapting it to the panel, an even more important task in 8K models.

Neo Quantum Processor therefore takes care, among other things, of upscaling from sources in 480p, 720p, 1080p and 4K, through sixteen neural networks trained to improve the quality of specific content. The processes take into account elements such as resolution, detail, frame rate and video noise to determine which neural network is ideal for handling the incoming signal.

For example, for a 480p signal the image processor focuses more on reducing blur and video noise, while in the case of a 4K signal the CPU is more concerned with improving textures. All of this is done in real time, even on streaming signals, which may vary the bitrate according to the available bandwidth. Also in this case the final result is still to be discovered, but we are certainly facing a generation of TV that marks a decisive step forward compared to the past , at least in terms of pure technical specifications.

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