Samsung DU7192 (IPS) vs LG UT8100 (IPS)

The maximum luminance for HDR content on the Samsung DU7192 is 245 nits, but is often exceeded by even lower results. Such values are insufficient for comfortable viewing of HDR material due to the lack of appropriate image dynamics and the colour distortions caused by the device's low brightness. While the manufacturer has equipped the device with an HDR format featuring dynamic metadata, specifically HDR10+, it is rarely used compared to Dolby Vision, which Samsung has yet to introduce in its televisions. It is also worth noting that the Samsung DU7192 only covers 82% of the wide colour gamut DCI-P3, meaning that sending signals in a wide dynamic range should be avoided, as significant colour loss will be evident.

Overall, the Samsung DU7192 delivers high-quality images that will satisfy most users. The television stands out particularly for its vivid colours and decent contrast. Thanks to UHD technology, the image on the screen is sharp and clear, even during fast-moving scenes. The DU7192 also supports HDR, allowing for better reproduction of details in bright and dark areas of the image.

The LG UT8100 television unfortunately does not meet expectations in the HDR effect category. The peak brightness of only 300 nits on the luminance graph is significantly below the required value to fully enjoy HDR effects. In practice, the image resembles SDR quality more than true HDR, which is particularly evident in demanding high-contrast scenes. The coverage of the DCI-P3 color palette is only 82%, which further limits the ability to present vibrant and rich colors. Instead of impressive visual experiences, we get a muted and washed-out image. For those looking for a television to fully utilize HDR content, the LG UT8100 model proves to be highly disappointing.

The best factory mode we used throughout the testing process was "Filmmaker." However, like most modes, it had its drawbacks. Starting with the most basic chart, the white balance, we observed a pronounced dominance of red in SDR and HDR modes. Although green also appeared in HDR mode, it did not significantly affect the overall perception. This resulted in an image with a noticeable yellow tint, particularly evident on the whites and the faces of the actors.

Another important chart, arguably more significant, is gamma, which controls contrast in materials with a standard colour palette. In factory mode it performed reasonably well, but with one notable issue regarding the darkest scenes. Here, it was significantly lowered, resulting in excessive brightening, which robbed the film of its contrast and suspense.

As for HDR content, the white balance remained similar. The main change occurred in the EOTF curve chart. Initially, we saw a bulge that, like the gamma curve, brightened the darkest scenes considerably. However, the curve then drastically changed, and the measured result dropped below the reference line, diminishing the dynamism of the film even further.

The Filmmaker Mode on LG UT8100, although theoretically the best for watching movies, has significant flaws. The biggest issue is white balance – drops in blue color cause noticeable yellowing of the image, visible in both HD and 4K content. These errors are confirmed by the measurement results in the Colour Checker test, which indicate significant deviations in color reproduction.

As for brightness characteristics, both HD and 4K content feature a high tonal boost. The gamma curve in both cases remains well below the reference value of 2.4, leading to excessive brightening of darker elements in the image. A similar problem is evident in the EOTF curve – in the case of 4K content, the TV struggles with proper brightness management, resulting in issues with screen brightness. This means that the factory settings of this model require significant adjustment to achieve better image quality.

Samsung even with its entry-level televisions, provides advanced tools for calibration, and we put these to work. The results of our efforts were more than satisfying. The white balance, which previously had a strong yellowish tint in both scenarios, now looks much improved, although slight deviations from the ideal are still noticeable. Nevertheless, the image is significantly cleaner than before the calibration process. We were able to model the gamma well for SDR materials, achieving as much contrast as the television can provide. The EOTF curve has also been adjusted, preventing the image from becoming excessively lightened or darkened. However, it is worth noting that for HDR materials, the deltaE errors remain quite high, with the primary issue being the unit's insufficient brightness.

After calibrating the Filmmaker Mode, the gamma has been aligned to practically ideal, reference values, which significantly improved the overall tonal characteristics in HD content. 4K HDR content also looks better, although some issues are still visible at the end of the graph, where the curve deviates from the ideal. The EOTF curve performs worse, as the television struggles to maintain appropriate brightness values. As a result, the image in some scenes may be overly bright or slightly dimmed, which stems from the device's design. Nevertheless, the calibration has brought significant improvements, especially in the case of HD content, where tonal balance and color reproduction are now at a much higher level.

Let’s revisit the smoothing of tonal transitions function. It can be set to either "off" or "auto." As expected, setting it to "off" results in significant gradation issues. On the other hand, when set to "auto," both movies and TV shows offer smoother colour transitions. However, this function has notable drawbacks: it interferes with the director’s intent by softening the effect of film grain and, more concerning, it often blurs small details, misinterpreting them in the process. For this reason, we consider this feature ineffective and do not recommend using it, as the tests for tonal transition smoothness were conducted with this function turned off.

Next, we assessed the image scaling, which is crucial for watching lower-resolution materials. Unfortunately, as this is one of the manufacturer’s lower-end models, the scaling function does not perform well. The result is heavily blurred details, and a noticeable white halo forms around characters, detracting from the viewing experience.

The fluidity of tonal transitions is also correct, although the effect depends on the settings. The update improved the functionality of smooth gradation, smoothing transitions better than before, but introduced minor issues with loss of detail, e.g., on textures.

Image scaling on LG UT8100 performs very well. The image presents itself decently, without major issues with edge aliasing. Details are preserved at a satisfactory level, which makes lower-resolution materials look really solid on this TV. As a result, users can enjoy watching older content without obvious quality flaws.

Although the Samsung DU7192 is the entry-level model in the manufacturer’s range, it does come equipped with motion smoothing technology. While this feature is somewhat limited in comparison to higher-end models, its inclusion is a notable advantage in its price category. The maximum refresh rate available on the TV is 60 Hz, which is adequate for movies and TV shows but falls short for fast-moving content like sports.

Within the motion smoothing settings, there are two features aimed at improving fluidity: "Motion Blur Reduction" and "Clear Motion (LED)." We’ll discuss the latter later, but first, let’s focus on the former. Unfortunately, despite being present, we found no noticeable difference when adjusting this setting. Regardless of the chosen option, the picture maintained the same stuttering effect typically associated with 24 fps content.

The Samsung DU7192 uses a panel with an average response time. However, it is worth noting that this type of panel outperforms VA panels in a similar price range, making it a more suitable option for watching sports compared to other budget models.

LG UT8100, equipped with a 60 Hz display, will be especially suitable for people watching movies. The television offers the TruMotion system with de-judder effect adjustment, allowing users to customize the fluidity of the image – from more choppy to exceptionally smooth, reminiscent of a soap opera effect, depending on user preferences.

The Samsung DU7192 is equipped only with HDMI 2.0 ports, which is to be expected given the device's price point and its target consumer market. As a result, it does not support the highest resolutions or frame rates available on the latest generation consoles. It does, however, feature the basic gaming functionality of ALLM (Auto Low Latency Mode). Unfortunately, it is disappointing that the manufacturer did not include GameBar, a feature that has become a standard even in lower-end TVs. GameBar would have provided significant convenience by allowing gamers to easily adjust settings quickly during gameplay.

LG UT8100 offers basic features for gamers, such as ALLM and Game Bar, which makes access to settings easier. The TV also supports HGiG, which improves image quality in HDR games. Unfortunately, the lack of support for Dolby Vision and VRR limits the capabilities of the device, as does the 60 Hz panel, which excludes support for 120 Hz resolution. This model will be more suitable for less demanding gaming applications.