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 model PUS7000 we tested in the 55-inch size is equipped with a VA panel. This is significant for black quality, as in such budget constructions we do not find local dimming systems that could assist the screen in dark scenes. Therefore, all the work rests on the panel itself, which, thanks to its characteristics, offers a decent contrast of 6000:1. In practice, this translates to much better experiences during evening viewings compared to competing TVs with IPS panels. The black here is better separated from bright elements, making dark parts of the image not appear washed out, and details in shadows remain visible. However, it is worth noting that in completely dark conditions, the black may slightly take on shades of navy blue and will not be as perfectly "pitch black" as in more expensive models. To mitigate this effect and improve depth perception, it is advisable to consider watching the TV with soft, additional lighting in the room. Usually, this issue was somewhat resolved by the well-known Ambilight system from Philips TVs, which, through a glow on the wall, optically increases contrast. Unfortunately, in the PUS7000 model, the manufacturer decided to look for savings, so we do not find this backlighting system here, which is standard in higher series like the PUS8000.