Philips OLED910 vs Haier K85F

The OLED910 is simply an absurdly bright television for an OLED. All thanks to the new panel from LG Display, the Tandem RGB OLED, which Philips has dubbed its "META OLED." It is this panel that allows for over 2000 nits of brightness in films, which not long ago was completely unattainable in OLEDs. The television also deserves high praise for how it handles full-screen scenes drenched in bright light. Generally, in OLEDs, brightness drops significantly during such scenes, but here it remains at an excellent level – around 1400 nits. These are almost reference values, and combined with the excellent colour reproduction at 99% DCI P3 and 82% BT.2020, it gives us an HDR effect that can confidently be called one of the best in the world.

Let’s now turn to one of the hottest topics in the world of televisions, namely the quality of HDR effect. In the case of the Haier K85F model, we must unfortunately make it clear: if you are looking for equipment to watch content in a wide dynamic range, you should avoid this model at all costs. The main problem is its very low peak brightness, which during our tests barely reached 250 nits. To give you a better idea of what that means – such a value is fine for watching standard SDR content, but it is absolutely insufficient to showcase any real benefits of HDR. The image simply lacks the "power" to generate bright, striking highlights. All our measurements and tests on specialist patterns only confirmed this. As if that weren't enough, the television also struggles with colour reproduction. In this budget build, we won't find any technologies to expand the colour palette, such as quantum dot layers (marketed as "QLED"). As a result, the coverage of the DCI-P3 colour space, which is crucial for HDR materials, is only around 80%. In practice, this means that the image will not only be dark but also devoid of the vibrant, saturated colours that the director wanted to show us.

Unfortunately, when it comes to colour reproduction straight out of the box, the Filmmaker mode on the OLED910 performs really poorly. The television overemphasises the blue colour, and at times it looks almost like a shop display mode. This gives the impression that the manufacturer hasn’t quite tuned the device properly. The effect is that the colours look unnatural, and the whole thing resembles a somewhat exaggerated display from a market exhibition. HDR content is presented much better, where, apart from a slight loss of detail in the blacks, there’s not much to complain about. The problem is that in everyday viewing, it’s the SDR materials that matter the most – and on the OLED910, they simply look poor and fall well short of what we would expect from a television of this class.

Well, how does the television perform with colours straight out of the box, without any interference from our side? The Haier K85F offers a full range of picture modes, such as Dynamic and Eco, but for anyone who wants to watch films according to the creators' intentions, only one really matters: Film mode. That is where we focused our tests, and unfortunately, its name has little to do with reality. The picture in the factory settings is very far from what we could call cinematic fidelity and requires numerous adjustments. Let's start with the white balance, which has a noticeable deficiency of red. In practice, this means that the entire image has a cool, bluish tint. The situation is even worse regarding brightness management, namely the gamma curve (for SDR) and EOTF (for HDR). Their graph resembles a real rollercoaster, which has a disastrous impact on the viewing experience. This results in unnatural dimming of SDR content, causing details in shadows to be lost, and in the case of HDR – excessive brightness, which further exacerbates the issue of clipping. Such a combination, namely too cool white combined with chaotic brightness and excessive blue saturation, results in significant errors in colour reproduction. Our measurements on the specialist ColorChecker chart revealed errors (Delta E) regularly reaching and exceeding values of 8-9. Put simply, errors above the threshold of 3 are already easily noticeable to the naked eye, so such a result means that the colours on the screen are simply heavily distorted.

Fortunately, it quickly turned out that it was not the panel causing the problems, but rather the way Philips factory-calibrated the OLED910. After calibration, the television displayed its full potential, and only then could we see what the new panels produced by LG Display were truly capable of. We primarily adjusted the white balance and brightness characteristics, successfully taming the excessive blue and giving the image a natural appearance. The final effect can be described as excellent. Errors on the Color Checker palette rarely exceeded a value of 3, which in practice means an image close to perfection and colours presented in accordance with the creators' intent. In SDR content, the effect was outstanding, and in HDR, the improvement was even more noticeable – gradients became cleaner, and colours fuller and more accurate. After calibration, the OLED910 transformed from a disappointing television into equipment that can confidently be referred to as a reference in terms of colour quality.

Well, is there anything that can be done about this picture? Can professional calibration save the situation? The answer is both yes and no. It must be clearly stated that there are certain limitations we cannot overcome. The constraints of the design itself, meaning simply a poor panel and its narrow colour coverage, make it impossible to expect a reasonable HDR effect – we won't mislead you on that. The biggest beneficiary of our adjustments is undoubtedly the SDR mode, and it is indeed for watching such content, after calibration, that this television starts to make sense. We managed to somewhat tame the white balance. Although the television only offers basic 2-point adjustment (rather than precise 20-point), so it's not perfect, we successfully eliminated that unpleasant, cold "chill" in the picture. Above all, however, we noted a significant improvement in brightness management. The gamma curve, which previously resembled a rollercoaster, looks like an almost perfectly straight line after calibration. This is a sign that the television can finally display images without artificially dimming or brightening them. The conclusion is simple: even with such a cheap television, professional adjustment of the settings can achieve a lot and extract the maximum potential from it.

The previously visible colour banding can largely be mitigated thanks to a feature called "distortion reduction." Like in the OLED820, it is best set to a medium level, as it then produces fairly decent results – smoothing out unwanted tonal transitions while not taking away too much detail from the image. Although at times the effect may be slightly too aggressive, this function can be considered useful for everyday viewing.

As for image scaling, the OLED910 performs really well. The test material featuring a model had a soft look characteristic of Philips – at times almost too soft – but this can be easily corrected with the sharpness slider, allowing you to adjust the image to your own preferences. It's also worth noting that the television has no issues with overscan, which still occurs in some competitor models. It's a small detail, but it's pleasing because it means that all content, even the oldest, is displayed as it should be.

Let's move on to digital processing and image scaling, specifically how the Haier K85F handles lower resolution signals, such as those from standard television. Right from the start, we encounter an extremely annoying and completely incomprehensible issue – overscan that is enabled by default. This means that the television artificially enlarges the image, cropping its edges, and this happens on every source, even 1080p. To see the full frame, you have to dig through the screen settings each time and manually switch the format to "expand to 16:9". It's a detail, but it's devilishly frustrating. The very act of scaling content to 4K resolution can be summed up in one word: acceptable. And that's about it. The image processor does not strip details from the picture, nor does it generate jagged edges or other artifacts. It simply does its job, without any fireworks. It's alright, but nothing more. However, the biggest and most noticeable shortcoming in the digital processing section is the absence of a smooth tonal transition feature. This is an algorithm that could significantly reduce the annoying banding effect we mentioned earlier. Unfortunately, the manufacturer did not provide such a solution, condemning us to watch the imperfections of the panel and low-quality materials in full view.

OLED910 is a television with a refresh rate of 144 Hz. It’s a bit of a shame that Philips didn’t opt for 165 Hz, as we know that the panel used is capable of that. On the other hand, such a bonus would mainly benefit PC gamers, as in everyday use, the most important refresh rate is 120 Hz, which is fully sufficient. Combined with the advantages of the OLED panel – lightning-fast pixel response time and the absence of motion blur, the image is impeccably sharp and quick, even in dynamic action scenes. The traditional motion smoother from Philips, called “Motion Style,” also deserves praise. We can easily adjust it to our preferences: the “Fluidity” slider is responsible for films and allows you to choose between a more “filmy,” cinematic character and a smooth, theatrical image. Meanwhile, the “Motion Blur Reduction” slider is intended for sports, where it’s worth setting it to the maximum value to ensure that the image is clear and distinct during very fast shots.

The matrix in the K85F model operates at a native refresh rate of 60 Hz, which right from the start sets certain expectations regarding image fluidity. However, we must admit that we were very positively surprised when we found two separate sliders for motion control in the settings menu: one labelled as "Motion Blur Reduction" and the other "De-Judder". Such generosity in this price segment is an absolute rarity, as typically manufacturers offer at most one shared option. Unfortunately, our enthusiasm waned as quickly as it appeared. It soon became clear why Haier was so "generous" – the slider responsible for motion blur reduction is simply a dummy. Its adjustment brings absolutely no visible effect on the screen, so only one of the two options works.

The OLED910 is fantastic for gaming. It supports 144 Hz, so if someone has a powerful PC, they can comfortably utilise that potential. On consoles, the most important thing is still 120 Hz, and everything works perfectly here. There's VRR, an automatic gaming mode, and even Dolby Vision in games and HGiG mode, so we really get a full package of gaming features. Philips has also added a Game Bar, which is a quick menu that displays basic information and allows you to enable a few useful things. It may not look as modern as the competition, but it works and fulfils its purpose. The only downside is the number of HDMI 2.1 ports. There are only two, which can be quite disappointing for a TV in this class. If someone connects two consoles and something additional through eARC - like a soundbar (which doesn't make much sense in this model but I'll discuss that in the paragraph about sound) - they'll have to do some adjustments. Other than that, the OLED910 has everything we expect from a gaming television.

Let's move on to features for gamers, although we must emphasise at the outset that this is more of a proposal for the "casual" ones. The manufacturer boasts in the specifications about the presence of HDMI 2.1 ports, which looks impressive on paper, but in reality, it is largely a marketing ploy. What good is a modern port if the heart of the television is a panel with a refresh rate of 60 Hz? It physically cannot display a signal at 120 frames per second, even at lower resolutions, which deprives the HDMI 2.1 port of its most significant advantage. It's a shame. (That’s why we mark it as HDMI 2.0 in our tests). Another curious peculiarity is the television's reaction to attempts to calibrate HDR from the console level. Changes to brightness settings cause very unnatural image behaviour, which might suggest an incorrect implementation of the HGiG standard. To be honest, however, one shouldn't worry too much about this, because as we've mentioned numerous times, we simply do not recommend using any HDR content on this screen. However, to avoid being too negative, the Haier K85F also has two significant and unexpected advantages. The first is the presence of ALLM, or Auto Low Latency Mode, which switches the television to low latency mode as soon as it detects a connected console. The second, even bigger surprise, is support for VRR, or Variable Refresh Rate. While it works within a very modest range of 48-60 Hz, its mere presence is commendable. As a result, the image in games can experience less "tearing," which significantly improves the gaming experience.