Probably not an issue here though as the screen can accept a 4K input anyway and natively display it. Just like it’s the case with all IPS panel monitors, some IPS glow is noticeable, especially in dark rooms and dark scenes, but it’s manageable. If you press your ear up to the top of the screen you can hear it whirring away a little, so if you are super-sensitive to this kind of thing or have a silent PC then keep this in mind. For these tests we will plot the average G2G figure at a range of measured refresh rates, while operating at the optimal overdrive control.

These OSD changes allowed us to obtain an optimal hardware starting point and setup before software level changes would be made at the graphics card level.That said, this is the first monitor backlight I’ve encountered that’s actually bright enough to light up the wall behind it and act as a bias light. The screen behaves as it should in this regard, with a reduction in the luminance output of the screen controlled by the reduction in the OSD brightness setting.

There’s no denying that the panel is fast anyway, even in the more modest and sensible ‘Fast’ mode, and we don’t want to take anything away from it’s performance in what we consider the optimal ‘Fast’ mode as it’s very impressive. The SpyderX Elite sensor works in tandem with a software suite to assign a score to different sections of a display’s performance and you can see how it fared on the score card above. In our view you need a screen of about 40″ in size (like the Philips BDM4065UC for example) to use an Ultra HD or 4K resolution effectively without OS scaling. When comparing the default factory settings for each monitor it is important to take into account several measurement areas – gamma, white point and colour accuracy. From these comparisons we can also compare the calibrated colour accuracy, black depth and contrast ratio.On this 27″ model, if you increase the scaling to 150%, you actually end up with the same workspace area as 2560 x 1440, but at a much higher PPI pixel density – and therefore a sharper image. The backlight is controlled using a direct current (DC) method for all brightness adjustments and so is flicker-free as advertised. It is providing a higher pixel density (Pixels Per Inch, PPI) to improve the degree of definition to the image. As adjustments were being made at the hardware level tonal values were maintained and there was no banding on colour gradients at all. An X-rite i1 Display Pro Plus colorimeter was used to validate the black depth and contrast ratios due to lower end limitations of the i1 Pro device.

In the absence of that, you have the same overdrive timings at all refresh rates which leads to some increase of the overshoot at lower refresh rates. The white point was also now improved to 6523k which corrected the slightly too cool (6% deviance) default setup. Contrast shifts were slightly more noticeable in the vertical field but overall they were very good. Default setup of the screen out of the box pretty decent overall despite the fairly relaxed factory calibration criteria. On the default “Fast” overdrive setting, the results were the best I’ve ever seen in a gaming monitor.Blur reduction was left off the other LG Nano IPS displays we’ve tested like the 27GL850 or 38GL950G as well, presumably for the same reason.

with 3840 x 1600 resolution and an overclocked 175Hz refresh rate appear based on their newly updated technology.

It provides quite a bright back lighting option behind the screen and a good range of options and modes to play with. cd/m 2 at this default brightness setting, giving us a decent 979:1 contrast ratio for an IPS panel and close to the spec. Have a read about response time in our specs section if you need additional information about this measurement.