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.
When it comes to black levels and contrast, we must be honest – this is the area where the differences between QD-OLED and WOLED panels are virtually nonexistent under typical cinematic conditions. We can confirm with full responsibility: the Samsung S85F equipped with a WOLED panel achieves incredible and unmatched results in this regard. Regardless of the scene being watched – whether it's a dynamic action movie or a dark thriller – we get infinite contrast and perfect black levels that we expect from any OLED television. These are results that can impress even the most demanding cinema lovers. It is worth emphasizing that such deep, absolute black can only be offered by televisions with organic panels. In film conditions, as we see in our measurements, the luminance level of black is zero. So, if you dream of a screen that can "turn off" the light in a scene just as effectively as an art-house cinema in a dark room, we are pleased to state that the S85F, also in the WOLED variant, is one of those televisions.