QN70F is equipped with a VA panel, which offers a high native contrast – a good starting point for black, especially for evening viewing. But theoretically, this is just the beginning of its capabilities. The television is branded as Neo QLED, which means it features Mini LED technology and a local dimming system. And indeed – the QN70F has such a function. The problem is that we’re not talking about classic local dimming with LEDs placed directly behind the panel. Instead, edge lighting with an overall dimming mechanism, known as global dimming, has been used. The effect of this is that instead of selective brightness control in individual zones, the entire screen is slightly dimmed when a dark scene appears. In practical terms, this means the contrast is average compared to Mini LED models that offer true local dimming. The black isn't bad – that’s thanks to the VA panel itself – but one can't speak of the precise light control that advanced systems with multiple zones provide. And here arises the question: is the QN70F series of televisions really a Mini LED television, or just a marketing variation on the Q70 series? Looking at the technical aspects – it’s hard to consider this model a full-fledged representative of this technology. But in everyday use, the black looks decent and for many people it can be fully satisfying.
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 (instead of at the edges), which gives a solid advantage 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 very impressive, but as it turned out, sufficient to achieve quite decent results.
In tests based on scenes from films such as Oblivion or 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 large number of bright details on a dark background), a halo effect appeared. This is where the limitation of the number of zones comes into play – bright elements could bleed around, and some details in dark areas became less visible. In one scene with a helicopter (The Meg), we even noticed slight brightness flickering, as if the television was trying its best to maintain visibility of the details at the expense of black depth.
However, these are not issues exclusive to this model – the halo effect or contrast drops in very complex scenes are something that most Mini LED televisions struggle with, even the more expensive ones. In its class, the QN80F still performs positively and offers noticeably better contrast than the QN70F model with edge lighting. For most users, this will be a level more than sufficient – although not perfect.