This glow is something that that affects most IPS-type panels and puts some users off such technology.Responsiveness was also a bit of a mixed bag. This was particularly evident on the car paint jobs which showed off some good bold blues, deep oranges and strong bright greens. Overall things looked vivid, though. In particular perceived gamma is reduced considerably towards the bottom of the screen, and for some shades towards the edges as well. This gave a massive and generally unheard of luminance adjustment range of 386 cd/m². The ‘1ms’ specified response time is quite clearly there for marketing and marketing alone, achieved by using a massively aggressive and artifact ridden setting which has little practical appeal. There was a good level of detail in dark scenes without a ‘flooded’ or washed out look. There was an additional layer of trailing in places due to some slower than optimal pixel transitions, however. Pixel responsivenessWe used the UFO Motion Test for ghosting and a highly sensitive camera to assess the pixel responsiveness of the monitor. Luminance uniformity mapIt’s important to note that there can be deviation on a finer scale (at points of the screen not measured, for example). For example, a dark green may look particularly lush and vibrant towards the centre of the screen or further up, but becomes lighter further down. This pink ‘sheen’ moved about quite readily if you shifted your head.The red block appeared a rich, deep red at the top and transitioned to pink further down. Furthermore you may be thinking about hooking up a device such as a games console to the monitor, in which case 1920 x 1080 is the maximum resolution you’ll be running. Unlike on most IPS-type panels there was no ‘glow’ impeding visibility towards the edge, although the viewing angles did cause a slight lightening of blacks towards the bottom. Detail levels were maintained quite evenly throughout the scene without peripheral glow. It’s worth remembering that individual units can vary in their uniformity. The ‘Fastest’ setting introduces an extreme amount of overshoot (inverse ghosting), obvious artifacts from overly aggressive pixel overdrive (grey to grey acceleration). ResponsivenessInput lagThe input lag of the U28D590D was calculated using SMTT 2.0, a sensitive camera and a range of displays of known latencies to compare with. The content, for example a 1920 x 1080 Blu-ray, is upscaled by the GPU to fit the monitor’s resolution. Representative example: Based on your order of £799.00, an initial deposit of £79.91 will be required. The Amazon link to the PB287Q links to the incorrect product, mistakenly leading me to believe that it was 399.99 USD. If you prefer using ‘Mode 1’ for ‘Gamma’ and plan to use that profile then set the gamma mode appropriately. This picture was taken 70cm from the screen. Black highlights indicate the results under our test settings and also with an ICC profile applied. Indeed when we compared the monitor in its fully calibrated state (using a colorimeter-created ICC profile specific to that monitor and system) to the OSD-tweak only state, ‘Mode1’ always provided more of a washed out look overall when the ICC profile wasn’t applied. The rear has a faux brushed metal (matte black plastic) finish. Gamma 'Game Mode'And indeed compared to the graph from our test settings, which show a bit of a bow in the curve, ‘Mode1’ would appear the best option. The technology in general felt a bit ahead of its time, as proper support for the resolution was quite patchy in desktop applications, movies and indeed games. We calibrated one of the HDMI inputs, so we had to change HDMI Black Level to Normal for proper gamma results. This solution seems to have enabled Samsung to provide a truly exceptional luminance adjustment range of on this monitor, as noted above. It rapidly responds to changes in on-screen content, which means it is certainly ‘Dynamic’ but can prove a little distracting at times. Looking at the bigger picture we feel that Samsung did a good job, within the constraints placed upon them by what is clearly a natively quite ‘slow’ TN panel.This monitor was a new experience for us, being the first ‘4K’ UHD we’ve tested in depth. We’ve included a profile for ‘Gamma Mode = 3’ as used in our review and also ‘Gamma Mode = 1’ for users who prefer to use that gamma mode. Furthermore the viewing angle restrictions of the TN panel mean that the perceived brightness of a given point doesn’t necessarily reflect that recorded by an instrument looking at that spot straight on. The monitor is therefore flicker-free under such conditions. This occurred infrequently and wasn’t at all distracting in our opinion. The greatest deviation from this occurred at ‘quadrant 2’ above the central quadrant, where 143.5 cd/m² was recorded which is 12% dimmer than centre. These figures are still quite respectable and don’t really make a noticeable difference in practice. AMD users may have some slightly different issues to contend with when running this resolution over HDMI. Lastly, you get an extensive list of picture-in-picture and picture-by-picture options. The contrast ratio under our test settings dropped to 820 cd/m², due to the considerable alterations to colour channels required. We saw its effect in the color gamut tests as well. No obvious dithering could be seen, however. 3) Have a browse of this article for instructions on installing the ICC profile. Things still looked much as they should really, so film lovers shouldn’t really worry about the resolution difference between the monitor and the content they wish to view. This also had an effect on closely matching pastel shades, causing them to lose distinction and individuality. ALL RIGHTS RESERVED. Does anyone know if this is also getting Freesync support? InterpolationAs we’ve already explored, the ‘4K’ UHD resolution of 3840 x 2160 brings plenty of clarity and real-estate benefits to the table – but is also a demanding resolution to run when gaming. The moon against a patch of grey sky that it illuminates, for example, provided a grey outline that was slightly darker than either shade involved in the transition. HDMI Black Level is an important option that significantly impacts this monitor’s performance. Responsiveness in games and moviesAs mentioned previously it is important to consider a range of different pixel responses and also how our eyes perceive motion in order to truly appreciate how a monitor performs in motion. We should also make mention that we noticed very occasional flashes which other users have reported on this and other monitors using the same panel. As usual a ‘Dynamic Contrast’ setting is included as a ‘Magic Bright’ preset. The following observations were made from a viewing distance of 70cm which we felt was comfortable for a screen of this size. We also give general impressions on the image when using a given setting. The Samsung U28E590D has a disappointing picture quality. Viewing anglesLagom’s tests for viewing angle were used to analyse the viewing angle performance and colour consistency of the monitor more closely. Furthermore you may be thinking about hooking up a device such as a games console to the monitor, in which case 1920 x 1080 is the maximum resolution you’ll be running. It’s worth remembering that individual units can vary in their uniformity. Donations are also greatly appreciated. Luminance uniformity tableThe luminance uniformity was pretty decent overall. At such a refresh rate there is absolutely no need to have lightning fast pixel responses – the motion blur you see comes predominantly from your eye movement. We used the UFO Motion Test for ghosting and a highly sensitive camera to assess the pixel responsiveness of the monitor. The moon against a patch of grey sky that it illuminates, for example, provided a grey outline that was slightly darker than either shade involved in the transition. At or below a brightness of ‘30’ PWM is used to regulate the backlight, which can induce flicker which some users may find bothersome. What this test shows is that the ‘Faster’ setting is optimal for the UD590, something that is quite clear from wider testing. Donations are also greatly appreciated. The first few black blocks blended into the background fairly readily, but this is normal for 2.2-2.4 gamma. This was particularly evident on the car paint jobs which showed off some good bold blues, deep oranges and strong bright greens. Elsewhere the luminance was between 1-8% of the central value which is pleasing. There were plenty of dashing neon shades, some good deep shades and various pastel shades. Check out all our Black Friday deals on Samsung TVs, All new Samsung energy efficient washing machines and dryers. Superb images that boast a staggering 8 million pixels are The ‘Response Time = Faster’ setting here provides a good improvement over the panel’s native behaviour (‘Response Time = Normal’) without introducing obvious overshoot.On Dirt 3 there was a moderate degree of motion blur, visible during even fairly gentle cornering around the track. Both profiles are designed to be applied on top of our test settings, for the sake of simplicity. Although none of the gamma presets are precisely at the 2.2 mark, Mode 1 or Mode 2 give you a good picture. The table below shows these values with blue highlights indicating the highest white luminance, lowest black luminance and peak contrast ratio recorded. A key fact to appreciate is that eye movement accounts for a large degree of the motion blur we see on a monitor and actually nullifies pixel responsiveness up to a point. The viewing angle can affect the apparent black depth of text, for example, and also has a significant effect on the perceived gamma and colour temperature. They were fairly lively nonetheless. Future US, Inc. 11 West 42nd Street, 15th Floor, You may like to combine them with different adjustments in the OSD. Correction - I wound up with R=49, G=33, B=48. Although black and other dark shades lacked the depth and ‘inkiness’ that a VA panel might produce, visibility in dark scenes was appropriate. To us the monitor felt somewhat more responsive when running the UHD resolution, for some reason, so it is possible that forcing the monitor to run at a non-native resolution increases the signal delay and hence increases input lag. Things still looked much as they should really, so film lovers shouldn’t really worry about the resolution difference between the monitor and the content they wish to view. The following table shows the percentage deviation between a given quadrant and the brightest point recorded on the screen alongside the luminance recorded at each quadrant. You may like to combine them with different adjustments in the OSD. The following table shows the percentage deviation between a given quadrant and the brightest point recorded on the screen alongside the luminance recorded at each quadrant. This occurred infrequently and wasn’t at all distracting in our opinion. Unfortunately we didn’t have any other screens at our disposal which supported the UHD resolution and had to run the screen at 1920 x 1080.
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