PHILIPS PUS9010 (IPS) vs LG OLED C6H (TANDEM OLED)

In the Philips PUS9010 version with an IPS panel, the HDR brightness unfortunately performs worse than in the previously tested 55-inch model with a VA panel. The difference reaches about 100 nits, which is quite noticeable given the relatively low values. While the VA version could exceed 500 nits, here the maximum brightness is around 400 nits. This level still allows for watching movies and series in HDR, especially on streaming platforms, but the effects are clearly muted. Bright elements do not have the same impact, and scenes requiring high luminance appear less impressive. On the positive side, the coverage of the DCI-P3 colour gamut is commendable. The IPS version offers around 91%, which is about 5% more than the variant with a VA panel. This translates to somewhat better colour saturation in HDR content, despite the lower brightness. Colours can appear more vibrant and cohesive, especially in colourful scenes.

And it is with HDR that the Tandem OLED panel shows its greatest advantage. The C6H’s brightness is simply very high and in our measurements it hovered around 1900–2300 nits in most film scenes. That’s already a level at which bright highlights, the sun or small light sources can look truly spectacular. The biggest impression, however, was made by the fifth scene from the film The Meg. It is exceptionally demanding for OLEDs because almost the entire screen is very bright. Even so, the C6H reached about 1650 nits in that scene. By comparison, the regular C6 with a classic WOLED panel recorded around 600–700 nits at the same point. So we’re talking about more than double the brightness, and in places the difference even approaches three times. And that is probably the best example of what Tandem OLED delivers here. It’s not just a higher result on a small test patch. The C6H can maintain very high brightness even when much more of the screen is lit. As a result HDR has significantly greater dynamism, and in this respect the C6H is much closer to flagship OLEDs than to typical mid-range models.

Colours

Tandem OLED also brings an improvement in colours. DCI-P3 coverage remains practically complete at about 99%, while in the much wider BT.2020 colour space we measured around 82–83%. That’s roughly seven percentage points more than the regular C6. In everyday use this won’t be a difference visible in every scene, because most films do not use such a wide gamut. However, when very highly saturated colours appear, the C6H already has noticeably greater capability, especially in reds. Reds benefit the most, becoming deeper and more saturated. This still isn’t at the level of the best QD-OLED panels or SQD TVs, but for a WOLED panel the performance is really very good.

We assessed the colour reproduction, as always, on the factory settings, focusing on the movie mode, which for Philips usually provides the best starting point. This is also a good moment to demonstrate how much the same TV model can vary depending on the type of panel used. Looking at the white balance, the overall tendency remains similar to the variant with the VA panel. Excessive red in the whites is still noticeable, but in the tested unit with an IPS panel, there are also deficits in the blue channel. As a result, the image has a slightly different colour character, which can be clearly seen in the comparative materials. This is a very good example illustrating why ready-made settings downloaded from the internet do not always work even within the same model.

However, returning to the assessment itself, this unit performs quite well, especially with SDR content. Colour tests show correct saturation and consistency, with no glaring errors that could interfere with everyday viewing. In HDR materials, slight deficits in reds can already be noticed, but these are not flaws that spoil the overall perception of the image. The biggest limitations do not come directly from the colours, but rather from the white and black levels. The use of an IPS panel and slightly lowered gamma results in the image being slightly boosted in brightness, and the poor black levels further affect the perceived contrast. This makes the overall picture look brighter, but at the same time it loses depth, especially during evening viewing.

Straight out of the box the LG C6 is fairly well set up, especially if you select the Filmmaker mode. In SDR content the white balance is decent, although as brightness increases it shows a slight deficiency in red. The image therefore becomes a little cooler, but not enough for the difference to be very noticeable during normal viewing. More is happening in the brightness response. Gamma is a bit low and, instead of holding at 2.4, it sits closer to 2.1–2.2 across much of the range. In practice the C6 slightly brightens midtones. Shadow detail is therefore more readable, but the picture loses some depth compared with how it should look in a darkened room.

In HDR the situation is a bit more interesting. The lower end of the greyscale performs very well, but from roughly 20–30% brightness the white balance starts to drift increasingly. As brightness rises there is more red, while blue becomes noticeably deficient. In the brightest scenes the difference is already substantial and also affects the reproduction of some colours. The EOTF itself is, however, fairly well tracked across most of the range. The C6 merely tends to slightly brighten the image, which we already saw in our film comparisons. The largest deviation appears in the very brightest areas, where the TV begins to adapt the signal to the panel’s capabilities.

The factory Filmmaker setting in HDR is therefore not perfect, but overall it performs well. The biggest room for improvement is the white balance, particularly at high brightness.

After calibration, the picture was brought to a truly sensible level. The overall look is coherent and natural, and when it comes to colour reproduction, it is difficult to unequivocally state whether we are dealing with a VA or IPS panel. This is a good sign, showing that the television has a solid foundation for further adjustments. It is worth noting the larger colour gamut coverage in this variant, which can subtly enhance the perception of colourful scenes, particularly in HDR content. However, this advantage is largely balanced out by the boosted black levels resulting from the use of an IPS panel. The limited black depth affects the perceived contrast, especially when watching in a dark room. Consequently, despite the noticeable improvement after calibration, the final assessment remains the same as in the variant with the VA panel. Better colours are unable to fully compensate for the weaker black levels.

LG TVs have long been very receptive to calibration and the C6 is no exception. After adjustment the white balance could be set almost perfectly, and most colour errors fell below 3, often even down to around 2. In practice this means very accurate colour reproduction in both SDR and HDR. An interesting detail only emerged when we looked at the HDR luminance response. On a classic EOTF plot everything looks almost ideal and at first glance it would be hard to find fault. Only when we measured the TV's behaviour on filters based on real film scenes did it become apparent that the C6 has a slight tendency to artificially boost image brightness.

It is not a huge difference and many people may even welcome it because HDR looks a bit more striking as a result. From the point of view of fidelity to the source material this is not ideal behaviour though – some scenes are simply a touch brighter than the filmmaker intended. Interestingly, this is rather unusual for LG. In previous generations the brand's TVs typically stuck closely to the reference picture characteristic after calibration. With the C6 we are still very close to the standard, but this subtle brightness 'boost' can indeed be noticed in films and series.

In the Philips PUS9010, we find another iteration of the P5 Perfect Picture image processor, designed to improve the quality of inferior materials. One of the components of this system is the distortion reduction function, which is responsible for smoothing tonal transitions. It works effectively and indeed reduces the visible colour gradation. Unfortunately, it does so quite aggressively. In practice, it can dim details such as the texture of materials or film grain. This is a notable compromise, so we would not recommend it for movie screenings. However, it performs significantly better with more casual content like YouTube or regular television. The P5 processor also manages quite well with lower resolution materials. The image is soft, at times even too soft, but this can easily be corrected with the sharpness slider, adjusting the effect to personal preference. A positive aspect is also the lack of edge trimming in SD materials, which is still not standard in this class of televisions.

Here the LG C6 has taken a really big step forward. The TV uses the same processor found in the flagship G6, and in terms of image processing the two models are very similar. That's a considerable plus, because this year's LG processor excels in that area. The "Smooth Gradation" function works particularly well. With heavily compressed footage it can effectively hide ugly banding and artefacts that often occur, for instance in lower-quality streaming. It's best to leave it on the "Low" setting. Then the improvement is noticeable, while the TV does not yet start to blur fine detail. Higher levels smooth the picture more, but can already remove some of the natural texture of objects on screen. Upscaling itself also performs very well. Lower-resolution material is sharpened correctly, edges look clean, and the processor quite effectively reconstructs fine detail. In this respect the C6 is already very close to LG's best TVs and the differences compared with the G6 are small.

Philips PUS9010 has a 4K panel with a refresh rate of 144 Hz, which will be appreciated primarily by sports fans and gamers. This is especially evident in dynamic scenes where the motion is sharp, and annoying blur is almost non-existent. When it comes to movies (standard 24 fps), Philips gives us a proven set of settings known from higher series. Two sliders are used to control motion. “Smoothness” allows you to adjust the image to your own taste: at low settings, we maintain a cinematic character, while moving the slider to the right gives us a perfectly smooth, albeit somewhat “theatrical” effect. On the other hand, “Motion Blur Reduction” is a function designed for sports – it ensures that fast-moving objects do not lose detail and remain clear.

The C6H with a Tandem OLED panel can also operate at refresh rates of up to 165 Hz. PC gamers will naturally get the most out of this, because for consoles, films or sport we're still looking at a maximum of 120 Hz. The panel itself is excellent when it comes to motion. OLED pixels respond virtually instantly, so even with fast-moving objects you don't see the typical motion blur. The picture remains clean whether you're watching sport or playing fast-paced games.

If you prioritise smoothness over motion clarity, TruMotion is available. LG lets you adjust two parameters separately. De-Judder mainly works with films and series shot at 24 fps and helps reduce the judder that's characteristic of them. De-Blur, meanwhile, is intended for 50/60 fps content, so it's particularly useful when watching sport or television.

The Philips PUS9010 is a truly solid machine for gaming. It has everything that matters: VRR, automatic game mode (ALLM), and support for HGiG. The latter is a great feature – it allows HDR in games to be set exactly as the developers envisioned. The television handles 120 Hz refresh rates effortlessly at every popular resolution (1080p, 1440p, and 4K). Whether you connect a PS5, Xbox, or a powerful PC, everything functions stably and simply as it should. Gamers will also appreciate the Game Bar. This quick, clear menu immediately shows whether the low latency mode is active. This is especially useful when frequently switching between different consoles. The whole experience is complemented by Ambilight. Evening sessions with this backlighting take the atmosphere to a whole new level – the image seems larger, and dynamic scenes leave an even better impression. Even if someone isn’t a fan of such “gadgets”, it’s hard to deny that it’s impressive.

The C6H offers practically the full suite of gaming features. On consoles you can easily use 4K at 120 Hz, while PC users can push the refresh rate up to 165 Hz. The TV also supports VRR from 40 to 165 Hz, ALLM and a proper implementation of HGiG. Dolby Vision is also available in game mode, which remains a major advantage for Xbox owners. All key information can be viewed in the Game Bar, which provides quick access to VRR settings and the current signal’s parameters. The OLED implementation therefore does not alter the feature set available to gamers, but with such high panel brightness HDR games can make an even stronger impression. Functionally, the C6H is simply a very complete TV for console and PC gaming.