Samsung U8000F, or more precisely the U8092F model in the 55-inch version, is equipped with an IPS panel. Let’s be honest – this is not the best choice when it comes to properly displaying blacks and contrast. The results in this category are simply poor. The contrast is abysmal, and watching dark scenes with any kind of “cinematic” effect is nearly impossible. Additionally, the fact that the TV lacks local dimming doesn’t help, making it difficult to achieve better results. The only thing that deserves praise is the quite decent uniformity of the panel – but that’s more of a minor consolation. Overall, it’s not good. If you care about deep blacks and reasonable contrast, it’s definitely better to go for a variant with a VA panel, which performs significantly better in this particular series.
TCL C7L is a Mini LED TV, which in the 65-inch variant we tested, is equipped with over 1000 local dimming zones. This, combined with the proprietary VA panel (called HVA 2.0 by TCL CSOT), delivers really decent results in terms of black levels and contrast. In most of the scenes we measured, the blacks and contrast looked really good, and in the easiest shots, the black was deep enough to almost resemble that seen on OLED screens. This is of course referring to the least demanding shots with a lot of black on the screen. However, when more bright elements appear on the screen, and black stops dominating as much, it is evident that TCL C7L – like most Mini LED TVs – has its issues with local dimming zone management.
This can be clearly seen, for example, on the black bars in films shot in the 2.35:1 panoramic format. Then, on the black bars or around small, bright objects, a pronounced halo effect, or a bright light glow, can appear. The contrast then drastically dropped – from laboratory values of around 200,000:1 to about 10,000:1, which is quite noticeable in a completely dark room. It’s worth remembering that this shouldn’t be treated as a flaw of the TV but rather as a characteristic of mini-LED technology. Of course, this effect becomes much less bothersome when we turn on at least some light in the room… which I definitely recommend doing during screenings on any LCD TV.