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.
Haier M90E is a fully-fledged Mini LED television utilizing a VA panel. Such a technological combination usually guarantees deep blacks and high contrast. In the tested model with a 55-inch diagonal, the backlighting system is based on 240 independent dimming zones, and their number increases proportionally in the larger variants of this model. Laboratory measurements confirm the high hardware potential – in synthetic tests with active dimming, the contrast exceeded 100,000:1.
However, the dry measurement data does not translate into an ideal picture in real-world applications, which forced us to lower the score in this section. The bottleneck turned out to be the software controlling the zones. The algorithm operates too aggressively and replicates errors we observed earlier in the more expensive M95E model. The problem becomes apparent when bright objects move against a dark background on the screen. The system struggles to smoothly adjust the brightness of individual zones, resulting in unnatural flickering of specific parts of the image. Instead of smooth motion, we see an effect reminiscent of a flickering damaged streetlight, which our test night scene from the film Sicario 2 ruthlessly exposed.