Display Enlightment by NCX

Added the Dell S2719D Review by PC Monitors to my Best Reviewed Flicker Free 27" 1440p AHVA/IPS/PLS buying guide.

The Dell lacks a height adjustable stand and is not VESA compliant, as well as drop or skip frames when overclocked above 74hz when connected to Nvidia graphics cards.  It has fake HDR (lacks wide gamut 8 bit panel with full DCI-P3 color space coverage, local dimming and high brightness), only two HDMI, and the matte coating is slightly grainier than some competitors according to PC Monitors.


Add the Dell S2419H Review by PC Monitors to my Best Reviewed Flicker Free 24-25" 1080p IPS/PLS Monitors guide.

Almost-Glossy/Low haze coated 6 bit +FRC LG AH-IPS panel with excellent preset color accuracy and gaming performance (balanced overdrive and negligible input lag) for a 60hz AHVA/IPS/PLS panel.  It is not VESA compliant, does not support Free-Sync, and suffers from very obvious interlaced artifacts when overclocked above 60hz (71hz=max without frame skpping):

Some models display static interlace patterns, not linked to motion and observed when the monitor is simply displaying a static image as well. Some shades may appear as faint horizontal bands of a slightly lighter and slightly darker version of the intended shade. We did observe static interlace patterns on this model, with some light and medium blue, yellow and orange shades in particular showing this. The horizontal bands were reasonably faint and not everyone would notice or find them bothersome. Curiously, if you reduced the refresh rate to 50Hz they became even more faint. Increasing the refresh rate much beyond 60Hz (refer to a note on ‘overclocking’ in the next section) made these extremely obvious.

Added BenQ SW271 review by Tom's Hardware to my Best Reviewed Flicker Free 27" 4-5K AHVA/IPS/PLS thread.

Matte 4K wide gamut AUO AHVA panel with hardware calibration (BenQ Palette Master Element), a height adjustable stand, Adobe RGB (97.8%) and decent HDR (89% + 350cdm/2 max brightness; color controls are locked when HDR is enabled) support.  It also has Displayport, 2x HDMI 2.0, a fake frame-less casing with a perceived black depth reducing inner black bezel, an SD Card Reader and 2x USB 3.0 and USB-C

The HDR mode locks the color controls and suffers from a light preset blue tint, and the other important modes (aRGB, REC 709 and sRGB) suffer from a light preset green tint meant to adhere to the DCI 1.2 standard:

Choosing one of the SW271’s color presets reduces calibration options. We could still pick from fixed color temps and gamma curves, but the RGB sliders were locked out. We opted for the two Custom memories where we created calibrations for DCI-P3 and sRGB.

The first three charts show results for Adobe RGB, DCI-P3 and sRGB modes. BenQ’s default DCI-P3 mode conforms to the film version (DCI 1.2), which has a greenish cast. This is meant to offset the color temperature of the xenon bulbs used in large commercial projectors, which are deficient in green. If you want a DCI preset with D65 white, you’ll need to create it yourself. Our chart takes this into account, which is why it looks the same as the others. In general, the fixed modes were a bit green at the higher brightness steps. Out-of-box grayscale accuracy is the SW271’s one weakness.

Fortunately, fixing it required just 30 seconds with the RGB sliders. The last two charts are among the best results we’ve ever captured and why we consider the SW271 reference-level. When properly set up, it can be used to dial in color meters, pattern generators, or other measurement equipment. It truly doesn’t get better than this.