The contrast ratio is very good for a TN panel – 900:1. Values of dE2000 over 4.0 should not occur, and this parameter is one of the first you should check if you intend to use the monitor for color-sensitive work. The illustration below shows how matters are for operational brightness levels in the Standard Display mode (approximately 140 nits) – in this particular case at 21% Brightness (White level = 142 cd/m2, Black level = 0.16 cd/m2). In the illustration below you can see how the display performs from a uniformity perspective. We measured a maximum brightness after Factory Reset of 410 nits in the middle of the screen and 380 nits as an average for the whole area, with a maximum deviation of 13%. We offer images to evaluate image quality. In terms of the vertical viewing angles, however, everything comes into place. Yes, the image gets a little washed out as the angle grows, but still – impressive. Surprisingly for a TN panel, Acer KG1 (KG251QF) has very respectable horizontal viewing angles. The screen turns into Retina when viewed at distance equal to or greater than 94cm (from this distance one’s eye stops differentiating the separate pixels). The screen ratio is 16:9, and we are looking at a pixel density of – 92 ppi, and a pitch of 0.28 х 0.28 mm. BenQ ZOWIE XL2411P is equipped with a 24″ (61cm) Full HD TN panel that has a refresh rate of 144Hz.
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