QN80F is a representative of the Neo QLED series, meaning it is a television with Mini LED backlighting. Unlike its cheaper cousin, the QN70F model, the diodes here are placed directly behind the panel (rather than at the edges), which gives it a solid advantage right from the start when it comes to contrast control. In the 65-inch variant we tested, we counted 88 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 films such as Oblivion and The Meg, the QN80F performed well – blacks were deep, and the overall image consistency was visually appealing. However, in more demanding moments (e.g., scenes with a large number of bright details on a dark background), a halo effect appeared. This is where the limitation of the number of zones becomes evident – bright elements could bleed into one another, and some details in the dark areas lost visibility. In one scene featuring a helicopter (The Meg), we even noticed slight brightness flickering, as if the television was trying its best to maintain detail visibility at the expense of black depth.
However, these issues are not exclusive to this model – halo effects or drops in contrast during very complex scenes are challenges faced by most Mini LED televisions, even the more expensive ones. In its class, the QN80F performs positively and offers significantly better contrast than the QN70F model with edge backlighting. For most users, this will be a level more than sufficient – although not perfect.
The U7Q is a television with Mini-LED backlighting – just like the PRO version. The difference? The version without the suffix simply has fewer dimming zones. In our 65-inch model with a VA panel, we counted 220 of them. And although this doesn't make as much of an impression as in the U7Q PRO, it still looks very good on paper for this price range. Alright, but how does it perform in practice? Surprisingly well. The contrast in the U7Q can reach as high as 300,000:1, which gives a really solid black effect. In many scenes, it's hard to find fault – the picture has depth, and the highlights are well separated. Of course, Mini-LED is not OLED – so there are certain limitations. In very challenging scenes with a lot of dark details, the television sometimes either "eats" them, leaving a nice black, or slightly brightens the background, which can cause a halo effect. This is normal in this technology, and one must take it into account. Despite these minor drawbacks – the contrast in the U7Q performs really well.