Author Topic: Dell S2719DGF Review: Matte 27" 2560x1440 144hz AUO TN Panel with AMD Free-Sync  (Read 8244 times)

NCX

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Not Glow In The Dark
« Reply #15 on: September 28, 2018, 07:42:59 pm »
Viewing Angles

DSC_0382 by Deepinthesky Teslastorm, on Flickr

TN View by Deepinthesky Teslastorm, on Flickr

There is one correct viewing angle, or one correct way to view TN panels, which is from above or while looking down at them.  The top of a TN panel needs to line up with the bottom of the viewers eyes in order to not be off angle. 


The top left photo is of the Dell when viewed optimally; no glow or any other issues are visible as long as one views TN panels the correct way mentioned above.  In the bottom left photo the Dell is lowered a bit, which results in it looking slightly washed out, but still tolerable while it looks noticeably darker in the bottom right photo since the Dell is raised slightly.  The 27" 1440p AUO TN panels vertically viewing angles are a bit more forgiving than cheaper 1080p TN panels, allow for slightly more vertical leeway, but are still awful.  Forget about leaning back and viewing TN panels, or viewing a TN on a desk while in a bed.  On the positive side one can sit closer to a TN panel than AHVA/IPS/PLS which suffer from white glow in the bottom corners when viewed from to close, or when looked down at in the same way one needs to view a TN panel.


For single monitor use the S2719DGF's viewing angles are not a problem as long as one sits directly in front at all times, and looks down at the Dell.
« Last Edit: November 18, 2018, 08:00:12 pm by NCX »

NCX

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TN Glow

DSC_0394 by Deepinthesky Teslastorm, on Flickr

Like AHVA/IPS/PLS panels, TN panels do suffer from glow or obvious contrast loss in the bottom corners when viewed from above, or while being looked down at, but TN panels suffer from significantly less glow in exchange for vertical gamma shift (uneven color from top to bottom) and more restrictive viewing angles.  The most positive aspect of TN panels is that the typical height of non-adjustable stands keeps them at the right height.  Glow is only visible if viewing the monitor from above, or while looking down at it, such as when standing up.
« Last Edit: November 18, 2018, 08:01:51 pm by NCX »

NCX

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Playstation 3 & 4 & Pro

DSC_0404 by Deepinthesky Teslastorm, on Flickr

The scales 1280x720 and 1920x1080 without issue, and it does lack an HDMI Black Level setting which requires one to change the Playsation consoles RGB Range setting to Full to prevent the monitor from being washed out.

PS3:
Spoiler (hover to show)

PS4 & PS4 Pro:
Spoiler (hover to show)
« Last Edit: November 18, 2018, 06:23:56 pm by NCX »

NCX

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Xbox 360 & Xbox One

DSC_0408 by Deepinthesky Teslastorm, on Flickr


The Dell scales 1280x720 and 1920x1080 without issue, and it does lack an HDMI Black Level setting which requires one to change the Xbox 360's Color Space setting to YCbCr709 to prevent the monitor from being washed out.

Xbox 360:
Spoiler (hover to show)

Xbox One

Not tested.
« Last Edit: November 18, 2018, 06:24:23 pm by NCX »

NCX

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Worthy of a Chernobyl Show Case
« Reply #19 on: September 28, 2018, 07:44:21 pm »
Settings & ICC Profile

DSC_0412 by Deepinthesky Teslastorm, on Flickr

Brightness 46 [] Contrast 66 [] Red Gain [] Green Gain [] Blue Gain [] Green Offset [] Blue Offset [] Red Offset

ICC Profile

Use Color Sustainer to install ICC profiles
« Last Edit: October 29, 2018, 05:50:50 pm by NCX »

NCX

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Conclusion

DSC_0379 by Deepinthesky Teslastorm, on Flickr

+Positive
-Negative
? Unavoidable flaws

+
+Dell customer service and warranty
+Sturdy materials and no build quality issues
+Fully adjustable stand
+Simple and easy to use menu[
+Displayport, 2x HDMI Inputs (1x HDMI 2.0), 4x USB 3.0
+48-155hz AMD Free-Sync
+Grain, haze and sparkle free matte coating
+Lack of obvious image quality loss when switched from 60 to 144hz
+Balanced 144-155hz overdrive with no obvious color streaking of overshoot ghosting
+Very accurate and linear preset RGB accuracy resulting in pure and color tint free greys and white
+Very minimal banding vs most TN panels and the Dell S2417DG and S2716DG
+Forgiving vertical viewing angles for a TN panel
+No obvious back-light bleed, glow or color uniformity issues

-
-Obvious image quality difference between HDMI and Displayport
-Very low Displayport gamma (1.9) resulting in obviously washed out image quality
-Gamma drops at 155hz resulting in more washed out image quality
-Displayport and HDMI image quality differences
-Perceived black depth decreasing black bezel
-Low 700:1 contrast after calibration
-Slow 60hz pixel response times for a TN panel

? TN panel with vertical gamma shift
? TN panel with very restrictive viewing angles
? HDMI cable included instead of Displayport

TN panels are by far my least favorite type of LCD panel, I cringe when I seriously consider testing them, but I must note my partial surprise at the improvements the S2719DGF offers.  The improvements the S2719DGF offers are the completely grain and sparkle free matte coating, reduced banding in dark scenes, and the very accurate color presets (RGB balance) which provided pure, or tint free greys and whites, which only high end professional oriented monitors like my Viewsonic VP2780-4K usually offer.  The improvements the S2719DGF offers are smacked down by the low preset gamma and 60hz overdrive performance, though the low gamma is clearly far more important.  The S2719DGF comes close to being an above average TN panel, but the washed out colors caused by the low preset gamma can't be forgiven since it lacks gamma settings to raise the gamma unlike Ace, AOC, LG and Viewsonic 144hz+ TN panels which can have two settings to both lower and raise the gamma.  I vastly prefer the calibrated image quality of the S2719DGF to the 144hz 1080p Acer XF240H and Viewsonic XG2402 I recently tested, however I think both are a better value since there are no 144hz AHVA/IPS/PLS panels available in the same price range.

I highly recommend saving up an addition 100-150$ for an Acer XF270HUA, Asus MG279Q, Nixeus Edge 27 or Pixio PX277H which all use 144hz AHVA (marketed as IPS) panels with AMD Free-Sync. 


« Last Edit: January 02, 2019, 05:36:15 pm by NCX »