Philips OLED950 vs TCL C7L

The OLED950 is a phenomenal television for consuming content in HDR format, primarily thanks to the innovative Tandem OLED panel. With this technology, the screen can generate astronomical brightness levels, reaching over 2000 nits in film scenes (on test patterns). This is an exceptional result that places the OLED950 among the world’s top displays available on the market. However, it is important to note a specific characteristic of this solution – at moments when full-screen bursts of light appear on the screen, brightness can drop by as much as half. It is worth emphasising, though, that values above 1000 nits on a full screen are still an outstanding result. This allows for the HDR image to be displayed exactly as filmmakers would wish, maintaining the dynamics and impact of bright scenes.

The use of the Tandem OLED panel has also brought tangible benefits in terms of colour reproduction, improving elements that traditional WOLED panels struggled with compared to their QD-OLED competition. For the OLED950, the colour gamut coverage is broader than in classic WOLED panels, reaching nearly 100% of the DCI-P3 colour space and a solid 82% of the demanding BT.2020 palette. Although these results still do not match the high standards of QD-OLED panels, the difference diminishes during real-world use. We cannot deny that in the vast majority of films, colours look simply fantastic on this model – they are saturated, vibrant, and full of depth.

The TCL C7L is, without doubt, an extremely bright TV. In synthetic tests using static test patterns it can reach peak brightness of around 2800 nits. That's a truly phenomenal result, given the price bracket it occupies. Unfortunately, measurements with real film scenes are not as spectacular as the white-square tests. Brightness in real HDR footage on the C7L falls to around 1200 nits. That's still very good, because the vast majority of modern films are graded to that level. However, when small, pinpoint elements appear on screen, the brightness of those details drops dramatically, even to around 400 nits, which reduces the HDR impact. The TV does this deliberately to preserve black levels and avoid excessive blooming. This is somewhat understandable, but it also shows that Mini LED technology is not completely without compromises in this respect. As for the HDR effect itself, alongside brightness the key factor is, of course, colour. Thanks to the use of new 'super' quantum dots, the colours are simply superb and among the best on the market. The TV is able to achieve very wide coverage of the BT.2020 and DCI-P3 colour gamuts, matching the best RGB Mini-LED screens with ease. Best of all, the C7L can maintain such high colour saturation regardless of the scene being displayed, which is often problematic in competing RGB Mini-LED TVs.

We tested the OLED950 model in Film mode. Although it is theoretically the best and most faithful preset on this television, in practice it proved not to be free from flaws. Interestingly, in the unit we tested, the biggest challenge was not the white balance itself – although it did show a slight tendency to give the image a pinkish hue. The main issue lay in the way the television managed brightness, both in everyday SDR content and in demanding HDR scenes. The analysis of the gamma graph and the EOTF curve leads to one key conclusion: the television excessively exposes brightness in the lower registers. This results in the image appearing less contrasty than the panel technology allows. Details in dark areas that should remain perfectly black (characteristic of "OLED black") are simply unnecessarily highlighted and brightened. Fortunately, these errors can be corrected using the appropriate tools, which is why – as always – we proceeded with professional calibration.

When it comes to out-of-the-box colours, what's new in TCL TVs, including the C7L model, is the addition of a picture mode called Filmmaker Mode. This is significant because such a mode was not previously available from this manufacturer. As the name suggests, this setting is meant to present the picture with the filmmaker's full intent. After our tests we can confirm that it is, without doubt, the best built-in mode on this TV if you want faithful colour reproduction straight out of the box. However, we certainly wouldn't say it's perfect. Like most devices on the market, this C7L also had some factory calibration errors. The white balance in Filmmaker mode drifted towards a slightly greenish-yellow tint, caused mainly by an excess of the green component and a noticeable shortfall in blue. Of course, this won't be a major drawback for the average viewer, but if you care about perfect whites, natural skin tones and getting the full potential out of the structure of those new "super" quantum dots, the TV really needs professional calibration.

As can be seen, the OLED950, after a professional calibration process, transforms into an absolutely phenomenal display that, without a shadow of a doubt, can be placed alongside the best televisions currently available in the world. This equipment only needed a professional touch to show its full potential and eliminate factory shortcomings. The minimal errors in reproduction in the Color Checker tests and the fidelity of the colour palette speak for themselves. We are dealing with an almost perfect device here. A true window to the world, offering image quality of the highest order.

After professional calibration we managed to greatly improve the situation in the factory Filmmaker Mode. After our corrections, the errors in the ColorChecker test and across the wide colour gamut fell below the threshold of human perception, that is below a value of 3, which is a very good result. The TCL C7L definitely benefits from such a procedure in terms of colour fidelity, and it's hard to deny. Brightness management for HDR content looks a little worse after calibration, though. As I described earlier, even though we set this model up correctly, when you play real film scenes the TV can handle its brightness in a rather peculiar way. It often brightens some elements on screen contrary to the creator's intent, which is clearly visible in the EOTF traces measured from specific films. Despite this defect, or rather a specific characteristic of the television, one thing you can't fault is that after calibration the C7L was able to reproduce colours accurately.

Upscaling

In terms of the image upscaling, the proprietary P5 processor performs just as well as in most models from this manufacturer. Low-resolution content takes on a very soft and plastic character. This kind of presentation will certainly appeal to many people. However, if you prefer sharper contours, you can lightly enhance them with the appropriate slider in the television's menu. It's really hard to find fault in this aspect. The image simply looks very good and additionally there is no issue with the phenomenon of overscan.

Smoothing and Distortion Reduction

The function for smoothing tonal transitions performs somewhat worse. In the settings, we find an option called "Distortion Reduction." This allows for three levels of adjustment of the processor's interference. Unfortunately, the Minimum setting works poorly and the smoothing effects are negligible. The Medium level gives a decent result, but it also starts to smooth out actors' skin details. On the other hand, the Maximum setting works too aggressively. It definitely removes too much detail from the faces and background elements, and can even take away the film grain. To achieve the optimal effect, it's worth experimenting with these settings at home and adjusting them to your preference. It may seem that the Medium option is the best compromise here.

This can be seen as, to some extent, the Achilles' heel of the C7L. Unfortunately, this TV uses the older MediaTek Pentonic 700 chip, which has never been famed for outstanding digital image processing. You can clearly see that in the behaviour of the progressive smoothing function, the feature responsible for reducing jagged edges and removing digital noise. It simply performs very poorly. When set to low, its effectiveness is almost non-existent. The only small plus is that the algorithm does not further spoil the picture or blur details unnecessarily. Upscaling, that is scaling lower-resolution content to 4K, performs slightly better. It is simply adequate and does not stand out against the competition. There is no denying that the C7L would benefit greatly in this regard if the manufacturer opted for the newer Pentonic 800 processor, which is now appearing in an increasing number of rival models.

The motion reproduction in the OLED950 model is virtually perfect. This is typical for screens of this type (OLED 120Hz+), as the panel shows no blurring at all. This allows us to enjoy perfect sharpness in practically any conditions. Much of this is thanks not only to the specifics of organic technology. Equally important work is done by the smoothing systems implemented by the manufacturer.

The TCL C7L uses a native 4K panel with a 144 Hz refresh rate, which at lower resolutions when connected to a PC can even reach up to 288 Hz. These are, of course, very high figures and impressive on paper, but bear in mind that almost all the dynamic content you’ll watch on this TV will still run at around a maximum of 120 Hz. To rein in that motion, the TV’s menu includes a motion-smoothing system called "Motion Clarity". It offers several preset modes, including a user mode that we strongly recommend you set manually using our tried-and-tested guides on our YouTube channel. There are two key sliders available. The first, "Blur Reduction", is responsible for cutting motion blur and improving sharpness in dynamic 60-fps material, such as sports broadcasts. The second slider, "Flicker Reduction", lets you add artificial frames to films and series shot in cinematic 24 or 30 frames per second. This, of course, can completely eliminate the irritating judder that appears during camera movement.

The OLED950 is nearly the perfect television for gamers. This is not only due to the unique atmosphere created by the Ambilight system during gameplay. The most important aspect here is the robust hardware support. You will find literally everything you should expect from a modern gaming display. The manufacturer has implemented two HDMI 2.1 ports with full bandwidth of 48 Gb/s. This gives us access to gaming in 4K resolution at 120 frames per second. Of course, support for VRR technology and the automatic ALLM game mode is also included. The device handles any HDR signal without difficulty, whether we are using Dolby Vision or the HGiG standard.

Access to all settings is available from one place thanks to the special Game Bar overlay. Although this interface may not be the most visually appealing on the market, it fully accomplishes its purpose. It displays all the important signal parameters and offers useful extras. Gamers can take advantage of the minimap zoom feature or add a permanent crosshair on the screen, which can be seen as a small aid in online competition. The contrast range adjustment also proves to be useful, as it allows you to brighten shadows and gain better visibility of enemies hidden in dark corners of the map.

When it comes to gaming, the TCL C7L is simply an outstanding TV for players. Thanks to two HDMI 2.1 ports with full 48 Gbps bandwidth, you get access to all the key features required by console owners and powerful PC rigs. There’s a well-working ALLM mode with very low input lag and VRR frame synchronisation that operates over an impressive range from 48 to 288 Hz. Importantly, unlike some rivals, TCL has properly implemented the console HDR10 HGIG profile and supports Dolby Vision in games. The package is completed by a very well designed gamer panel, the Game Bar, which even lets you edit its appearance and change the theme so it perfectly matches the style of your console.

The only thing you can, and even should, criticise is that the TV offers only two full-spec HDMI 2.1 ports, while the other two are older HDMI 2.0. That creates quite a logistical problem. Why? Because one of the fast ports also handles the return audio channel eARC. In practice this means that if you connect a soundbar or home cinema system to the TV, you’ll be left with just one free HDMI 2.1 socket. If you have two consoles at home, or a console and a powerful PC, unfortunately you’ll have to give something up or keep juggling cables at the back of the case while trying to maintain convenient control of the audio system.