QN80F is a representative of the Neo QLED series, which means it's a television with Mini LED backlighting. Unlike its cheaper cousin, the QN70F model, here the diodes are placed directly behind the panel (rather than at the edges), which gives a solid advantage in contrast control right from the start. In the 65-inch variant we tested, we counted 88 local dimming zones – a result that may not be particularly impressive, but as it turned out, sufficient to achieve quite decent results.
In tests based on scenes from movies like Oblivion and The Meg, the QN80F performed well – blacks were deep, and the overall image consistency was eye-catching. However, in more demanding moments (e.g., scenes with a lot of bright details on a dark background), a halo effect appeared. This is where the limitation of the number of zones shows – bright elements could bleed into each other, and some details in dark areas lost sharpness and contrast. In one of the helicopter scenes (The Meg), we even noticed a slight flicker in brightness, as if the television was trying its best to maintain visibility of details at the expense of black depth.
However, these are not problems exclusive to this model – the halo effect or contrast drops in very complex scenes are something most Mini LED televisions struggle with, even the more expensive ones. In its class, the QN80F still performs positively and offers clearly better contrast than the QN70F model with edge lighting. For most users, this will be a level more than sufficient – though not ideal.
The Philips MLED920 in the 55-inch version that we had the opportunity to test uses a high-contrast VA panel. The panel itself is one thing, but the true distinguishing feature of this model is the mini-LED backlighting. This largely determines how black levels and contrast appear – and it must be said that Philips has made a significant leap forward compared to the models from 2024, where the local dimming algorithms performed just mediocrely. In this new version, it's much better, and the contrast presented by the MLED920 can really pleasantly surprise. At times, it even resembles the level known from the best LCD TVs on the market – blacks can be deep, the image gains three-dimensionality, and viewing sessions in a dark room create a great impression. Of course, as is the case with any mini-LED TV, this is not an image entirely free from compromises. With a large amount of fine details on the screen, the local dimming algorithms can sometimes get confused – sometimes dimming details more than we would like, and at other times brightening the background, resulting in slight light blue halos around objects (the so-called halo effect). Despite these imperfections, we must emphasize that black levels and contrast are truly a strong point of the Philips MLED920 and definitely one of the reasons to consider it in the mid-range.