Getting to the heart of the matter, namely the assessment of black levels and contrast, we must begin with specifications that evoke genuine admiration on paper. The Haier M95E is a Mini LED construction, equipped in its 65-inch version with an impressive grid of 576 independent dimming zones (a symmetrical layout of 24x24). When we combine this technology with a VA panel, renowned for its native deep blacks, our expectations for image depth instantly rise. And indeed, as long as we feed the television with static test patterns, everything looks phenomenal. The contrast measurements are so remarkable that the M95E almost throws down the gauntlet to the most expensive players in the market. Unfortunately, this admiration lasts only until we switch on the first random piece of film material.
As soon as motion appears on screen – and we’re not even talking about wild chases, but rather ordinary dialogue or a camera transition – a fundamental weakness of the rudimentary backlight control algorithms comes to light. If you remember our tests of the Xiaomi S MINI-LED 2025 model, the story dangerously circles back. The dimming zones seem to have a life of their own, throwing a kind of "light disco". Chaotic flashes and visible backlight pumping are unfortunately very distracting and spoil the viewing experience, creating a huge HALO effect. Importantly, we conducted tests on the "High" dimming setting. It turns out that in our unit, this was the only mode in which the zones could undertake any meaningful work in HDR content, without causing a drastic drop in overall brightness. All of this leads to one conclusion: the M95E has enormous, yet completely untapped hardware potential. Clearly, there has been a lack of hours spent refining the software, which forced us to lower the score in this key category.
Moving on to picture quality tests, it is immediately apparent that the biggest change the TCL A400 Pro brings compared with typical lifestyle TVs is in blacks and contrast. This is all down to a full Mini-LED backlight placed directly behind the panel. As a result, the TV can locally dim selected parts of the image and is not limited solely to the native contrast of the panel. In the 65-inch sample we tested, we counted 180 dimming zones. That is not an impressive number compared with conventional Mini-LED TVs, where zones can be many times more numerous, but for a lifestyle TV it is already a very large step forward. Especially as competing models often either lack advanced local dimming or use much simpler edge-lit backlights.
In practice this produces very good results. In simpler scenes, where bright elements are clearly separated from a dark background, the A400 Pro can effectively dim the black areas of the image and show genuinely deep black. It is one of those things that immediately sets it apart from many conventional “picture” TVs. Of course, this does not mean TCL entirely avoids the limitations of Mini-LED LCD technology. 180 zones is still relatively few, so in more complex scenes, for example those with many small bright elements on a dark background, a halo effect can appear. It can also happen that blacks take on a more navy‑blue to purple tint in such conditions, because the TV cannot dim the background with the same precision as OLED TVs. Despite these limitations, we believe the A400 Pro brings a genuinely fresh breath to this category. For a lifestyle TV, which is primarily intended to look good on the wall, the level of blacks and contrast is a very strong selling point.
NOTE. It is worth noting that the number of local dimming zones depends on the screen diagonal. Larger variants should have more, but because the number of zones increases with panel size, we do not expect large differences in black level and contrast between the Mini-LED versions. The exception are the 32- and 43-inch models, in which TCL did not implement local dimming. These are significantly simpler LCD designs, so our review does not directly apply to those diagonals, and the prices quoted with the review should be treated as indicative only.
Number of dimming zones in the TCL A400 Pro
Screen size | Backlight type | Number of local dimming zones |
32" | PFS LED | No local dimming |
43" | PFS LED | No local dimming |
55" | QD Mini-LED | 112 zones |
65" | QD Mini-LED | 180 zones |
75" | QD Mini-LED | 240 zones |
85" | QD Mini-LED | 264 zones |
98" | QD Mini-LED | 448 zones |