In HDR mode, LG UR781 unfortunately does not impress with its brightness. In tests on five screens, the television achieved only around 200 nits, which is quite a low value for HDR standards. This brightness is similar to levels typical for SDR, causing HDR effects to be insufficiently pronounced, and the image may appear less impressive, especially in dynamic, bright scenes. In HDR mode, it has certain limitations in colour reproduction. This means that colours may not be as intense and rich as in televisions that manage better with a wide colour gamut. In practice, this can make the image less vibrant and dynamic, and HDR effects will not be as spectacular as one might expect. Additionally, UR781 LG has some issues with accurately reproducing colours in HDR mode, resulting in content that may look less vivid.
The Sony Bravia 7 II handles HDR very well and, above all, is simply a bright television. In the correct viewing mode, Professional, we measured around 2,000 nits of peak brightness, so the panel’s capabilities are truly significant. Of course, with Mini-LEDs a test pattern result is only part of the story, because a lot still depends on how the TV controls the backlight in real scenes. Here Sony’s algorithms perform very well. Depending on the scene, the brightness we measured in films ranged from roughly 1,100 to as much as 1,700 nits. That’s already a level at which HDR has proper punch and bright highlights can be genuinely impressive. It isn’t perfect in every situation, though. With small bright elements on a very dark background the Bravia 7 II clearly favours maintaining good blacks, which can cause their brightness to drop to around 500 nits. It still looks good, but you can see the TV does not always manage this without compromise.
Colours
The second thing that has a huge impact on HDR is, of course, colour. And this is precisely where True RGB technology was meant to bring one of the biggest changes. Looking at the panel’s capabilities alone, the Bravia 7 II performs very well. We measured about 98% DCI-P3 coverage and 88% BT.2020, so the potential to show strongly saturated colours is really large. In RGB TVs, however, the situation is a bit more complex. When we repeated the same measurements with a film background applied, palette coverage fell to around 92% DCI-P3 and 78% BT.2020. Those are still good figures, especially for an RGB Mini-LED TV, but they clearly show that the final result largely depends on how the algorithms control the three backlight colours. In most scenes the Bravia 7 II handles this well and colours retain high saturation. The biggest differences are visible in shades of blue, where samples begin to deviate more noticeably from reference values and coverage is weaker than for the other primary colours. True RGB therefore offers genuinely greater potential here, but, as with brightness, much depends on what is happening on screen.