monitor samsung 28 ue590

No obvious dithering was observed.Performance on the white saturation test was good. As you can see there is no peripheral ‘glow’ as you would see on most IPS-type panels. This measurement is influenced by both signal delay (the element of lag you ‘feel’) and pixel responsiveness (the element you ‘see’). 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. The monitor was certainly far from being free of input lag and had some slightly slower than optimal pixel transitions. This does not occur to the extent seen on some VA panels (a smear) but is a little more visible than on some 60Hz TN and IPS-type models. As you can see the dark uniformity is actually rather pleasing with no major problems. There were no major barriers to visual motion performance other than refresh rate itself. No obvious dithering was observed. Lighter colours were displayed fairly cleanly thanks to the screen surface and it was also nice to be free from the shackles of ‘IPS glow’. We feel analysing the colour temperature at different points of the screen is particularly misleading for this reason, so this isn’t something that we include in our assessment of TN models such as this. It is important to remember that individual units differ and it is entirely possible that the ICC profiles will have a detrimental effect on image quality. Any personal data collected will be used in accordance with our Privacy Policy. What this test shows is that the ‘Faster’ setting is optimal for the UD590, something that is quite clear from wider testing. A good example of this was when you strafe past a gunmetal grey vehicle-mounted machinegun or a rotor blade of a helicopter. Detail levels were maintained quite evenly throughout the scene without peripheral glow. If you wish to run the monitor at a resolution of 1920 x 1080, which it will do at 60Hz regardless of the connection used, then you will encounter some issues with the colour signal. Although black and other dark shades lacked the depth and ‘inkiness’ that a VA panel might produce, visibility in dark scenes was appropriate. The shade depth appeared much more appropriate overall and it didn’t have the same washed out quality towards the bottom of the screen in particular. 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. A good example of this was when you strafe past a gunmetal grey vehicle-mounted machinegun or a rotor blade of a helicopter. Performance on the black level test was quite decent overall. We can certainly see the benefits (quite literally) and feel that better software support and a greater array of ‘4K’ hardware are both inevitable. As these images highlight the pixel responsiveness is a bit weaker than our fast 60Hz reference, which you can see has only a weak primary trail. The following observations were made from a viewing distance of 70cm which we felt was comfortable for a screen of this size. The performance here indicates that the gamma curve of the monitor is strongly viewing angle dependent, typical for a TN panel. You will receive a verification email shortly. This was particularly evident on the car paint jobs which showed off some good bold blues, deep oranges and strong bright greens. We didn’t notice this during normal testing in even a fairly dimly lit room and it didn’t affect our impression of the monitor. As far as TN panels go this was one of the better ones we’ve come across in the colour department. The UFO is set to cover ‘1920 Pixels Per Second’ rather than ‘3840 Pixels Per Second’ so that it crosses both monitors in 1 second. 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. And this monitor is blindingly bright. In short; we preferred running the monitor in ‘Gamma = Mode3’ despite what the colorimeter’s central readings may suggest. The separation between the original object and its trail and the size of the image is different because the S27A750D is a 1920 x 1080 monitor. This gave a massive and generally unheard of luminance adjustment range of 386 cd/m². 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. This is again quite typical for a TN panel and not a specific flaw of this monitor alone. It provides seamless connectivity with your PC and AV equipment with DisplayPort 1.2 and 2 different HDMI ports making it the perfect partner for your game console as well as your PC. It’s always important not to become too fixated on the individual graphs or numbers and instead consider the end result (image). Environments looked fairly lush and natural, despite the aforementioned TN restrictions. The UFO is set to cover ‘1920 Pixels Per Second’ rather than ‘3840 Pixels Per Second’ so that it crosses both monitors in 1 second. They were fairly lively nonetheless. The Spyder4Elite was used to assess the luminance of lighter colours as well, represented by 9 white quadrants running down the screen from top left to bottom right. 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. 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). 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. The average contrast ratio of the U28D590D sat at 909:1 with brightness only adjusted, excluding at ‘0’ brightness where the measurement lacked accuracy due to the low luminance levels involved. The exact cause of this issue isn’t known at time of writing, although there are various theories – the most promising of which suggests it may be something that Nvidia (and AMD) can fix driver side. Small white lines would appear on the screen for a split second. Again, this is still a perfectly workable value.As usual a ‘Dynamic Contrast’ setting is included as a ‘Magic Bright’ preset. Road signs and reflective orange barrier tape illuminated by headlights showed this to a small degree as well. Eh, TN on such a massive, 4K monitor is kinda counterintuituve. Send us your old device in the supplied packaging to complete the trade-in process. The peak luminance recorded was a retina-scorching 391 cd/m² whilst the minimum white luminance sat at an extremely low 15 cd/m². 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 profiles were both created using a brightness of ‘35’, yielding 165 cd/m2 on our unit after the profile was applied. Textures are somewhat blurred – indeed it looks like a considerably lower resolution than ‘1920 x 1080’. This is Samsung’s version of a ‘Low Blue Light’ setting or ‘Reading’/’Paper’ mode. As far as TN panels go this was one of the better ones we’ve come across in the colour department. The picture below shows the uniformity of the screen when displaying black in a dark room under our test settings. Good gamma settings from Samsung and high native bit depth helped provide one of the best colour performances we’ve seen from a TN panelThe default colour setup left a bit to be desired, particularly in terms of white point.

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