LG UR781 vs TCL C655 / C69B (43" - 50")

In HDR mode, the LG UR781 falls short of the brightness expected for high-quality HDR experiences. Tests across multiple panels revealed a brightness of around 200 nits, which aligns more closely with SDR standards. As a result, HDR effects lack the desired impact, with bright and dynamic scenes appearing less striking than they should.

The television also exhibits limitations in colour reproduction under HDR settings. The colours may not appear as intense or rich as those on models that handle wide colour gamuts more effectively, leading to a less vibrant and dynamic image overall. Additionally, the LG UR781 struggles with accurate colour representation in HDR mode, which can result in muted content, particularly during daylight viewing when the image can lose its intensity.

Although the dynamic tone mapping feature helps optimise the image, it does not overcome these shortcomings. For users seeking a truly immersive HDR experience with vivid colours and bright highlights, the LG UR781 may not meet expectations.

The quality of the HDR effect in the TCL C69B / C655 television is quite average. A brightness level of 350 nits, while not the worst, still does not allow for fully enjoying HDR effects, which require higher luminance to show their strength. Additionally, despite the use of a quantum dot coating (QLED), the television offers average coverage of the wide DCI-P3 color gamut at 91%, which may limit its richness of colors in HDR content.

In Filmmaker Mode, the LG UR781 demonstrates the best factory-calibrated performance but exhibits notable flaws. The primary issue lies in white balance, where the graph indicates a drop in blue levels, resulting in a warmer image with a shift towards yellow tones. This deviation impacts the naturalness of colour reproduction, particularly in scenes with white or neutral backgrounds. The Test Colour Checker confirms that some colours deviate into incorrect shades, leading to a lack of true-to-life representation. This can diminish the realism of film scenes, with certain details appearing in inaccurate colours.

In terms of contrast, the gamma graph reveals a drop to a level of 2.0, below the optimal value of 2.4. This results in darker parts of the image appearing brighter than they should, reducing depth and dynamic range. Additionally, the EOTF curve shows an unnatural spike at the beginning, leading to over-brightness in the brightest areas of the image. This can cause a loss of detail in high-luminance scenes, further impacting the overall image quality.

The television TCL C69B / C655 tested in movie mode unfortunately does not meet expectations regarding color accuracy. Although movie mode suggests better reproduction, it has little in common with film. There are quite a few errors visible, especially in white balance – both for HD and 4K HDR content – where the dominance of the blue color is very apparent. For the viewer, this means that the image becomes unnaturally cool, affecting the overall perception of colors and the visual impression. The color checker confirms these errors, showing that colors shift to cooler shades.

As for brightness characteristics and the associated contrast, gamma is very unstable for material, which can make the image slightly darker. The EOTF curve for 4K material shows some errors, with significant deviations at the end of the chart, negatively affecting the perception of darker areas of the image.

After calibration, the LG UR781 demonstrates commendable colour reproduction for SDR content. The calibration effectively improves white balance, yielding natural and balanced tones across various scenes. Gamma adjustments contribute to precise detail representation in shadows and highlights, enhancing overall image clarity. This results in a well-rounded performance for everyday use, with solid colour accuracy and well-balanced imagery in SDR mode.

HDR content, however, reveals the TV's limitations. The lack of support for a wide colour gamut restricts the depth and vibrancy that HDR is capable of. The EOTF curve deviates from the ideal, overemphasising details in bright areas, which introduces inaccuracies in colour representation. Tests using the Colour Checker confirm significant errors in colour reproduction. Additionally, the panel's relatively low brightness exacerbates these issues, diminishing the impact of dynamic range effects and causing colours to appear washed out.

While HDR mode highlights the TV's shortcomings, the improvements after calibration, particularly in SDR performance, are significant. Enhanced white balance and gamma adjustments greatly improve the viewing experience, providing more natural and consistent colour reproduction. Compared to its pre-calibration state, the LG UR781 now offers a much better performance for everyday use, especially in standard dynamic range scenarios.

After calibration, the movie mode on the TCL C69B / C655 television improves in quality. The most significant improvement can be seen in tonal quality, and the white balance is much better – without major errors. We will no longer see an excessive dominance of cool tones. Gamma has also been improved, which translates to a more stable representation of brightness and contrast. However, due to the limitations of the television's average color palette, Colour Checker tests for 4K materials did not achieve remarkable results. Despite these technological limitations, the image has become more authentic, positively influencing the reception of film content.

The tonality smoothing function on the LG UR781 yields mixed results. At the "low" level, it neither enhances image quality nor effectively diminishes film grain, making its impact relatively negligible. Increasing the strength of this function can soften gradations and reduce visible banding, but it risks over-softening the image in certain scenes, which may compromise the overall sharpness and detail.

As for image scaling, the LG UR781 struggles to deliver exceptional performance, particularly with lower-resolution content. The TV employs an artificial sharpness enhancement technique that introduces defined contours to create the illusion of sharper images. While this may appeal to users who prefer pronounced, vivid details, others seeking a more natural and authentic look may find this effect distracting or unrealistic. Ultimately, the perception of these enhancements will depend on personal preferences, with some users valuing the added sharpness and others prioritising natural image quality.

The "Gradual Smoothing" function works very well on the TCL C69B television and, surprisingly, does not remove desired effects like film grain – unlike some solutions from other manufacturers. Unfortunately, the image scaling looks poor. The TV artificially sharpens the image, causing the edges of objects to be heavily jagged. This state of affairs may appeal to some users who prefer a more "hard" look of the image, but it is not an ideal solution for those who value naturalness and the smoothness of details.

The LG UR781 television provides decent motion fluidity for movies, primarily due to its "True Motion" feature. This option lets users fine-tune motion smoothing on a scale from 0 to 10, catering to different viewing preferences. Lower settings preserve a traditional cinematic effect with some judder, while higher settings create a smoother, more theatrical image. Although the latter deviates from the cinematic standard, it may appeal to viewers who prioritise seamless visuals.

However, performance declines when handling dynamic sports content and fast-paced games. Its 60Hz panel limits interpolation capabilities, meaning motion smoothness in movies can be improved, but motion blur cannot be effectively reduced. The absence of support for 120Hz and BFI (Black Frame Insertion) technology exacerbates this, causing fast-moving objects to blur. Moreover, the panel's slower response time further reduces sharpness in rapid scenes, which can be a drawback for gamers and sports enthusiasts seeking clear, fluid visuals in high-speed scenarios.

The TV TCL C69B / C655 in its smallest variants offers decent, although not perfect, results in terms of motion fluidity. In the case of movies, the TV has a "Flicker Reduction" function that allows for motion fluidity adjustment on a scale from 1 to 10. With this option, we can adjust the appearance of the image to cinematic or more theatrical preferences (with lower or higher speed).

The LG UR781 provides several features designed to enhance console gaming experiences but comes with notable limitations. On the positive side, it includes the ALLM (Auto Low Latency Mode) feature, which automatically switches the TV to a low-latency mode, optimising response times for gaming and benefiting fast-paced titles. The television also supports HGiG, ensuring HDR games are displayed enhancing the overall gaming experience. Additionally, the Game Bar feature allows gamers to quickly access and adjust settings during gameplay, offering added convenience. However, there are significant drawbacks. The TV lacks VRR (Variable Refresh Rate), which may result in screen tearing or stuttering, particularly during dynamic scenes. It also does not support Dolby Vision for gaming, limiting HDR picture quality in titles that use this format. The 60Hz panel restricts gameplay to 60Hz, excluding smoother experiences available at higher refresh rates like 1080p@120Hz, 1440p@120Hz, or 4K@120Hz. The absence of G-Sync or FreeSync technology reduces compatibility with systems designed to synchronise the frame rate between the console and TV, potentially affecting gameplay fluidity. The LG UR781 is a functional choice for casual gamers who value affordability and features like ALLM and HGiG. However, it falls short for those seeking advanced gaming features such as high refresh rates, VRR, or Dolby Vision gaming.

The TCL C69B / C655 television in its smallest variants offers a range of features dedicated to gamers, such as ALLM (Auto Low Latency Mode), VRR (Variable Refresh Rate), Dolby Vision for gamers, and Game Bar. ALLM automatically switches the television to low latency mode, improving responsiveness and minimizing delays in control. VRR allows for synchronization of the screen refresh rate with the number of frames generated by the console, eliminating tearing, resulting in smoother gameplay. Dolby Vision for gamers ensures better color and contrast representation in games that support this format, resulting in better image quality. Meanwhile, Game Bar provides quick access to game settings and allows monitoring of key parameters, such as input lag.

However, the television has certain limitations that may affect gaming comfort. The 60 Hz panel does not allow for displaying signals with a higher refresh rate, which may impact image smoothness in dynamic games. The lack of support for G-Sync technology for PCs may also be noticeable when gaming on a computer, especially with demanding, fast-paced titles.