No dead or stuck pixels; color's noticeably better than past IPS screens I've used; anti-glare coating is very smooth

So if one dead pixel they will send you a new monitor

Zero dead pixels and very, very minimal backlight bleed.

I have had no issues so far with any problems with bad pixels

and Dell will replace the monitor even if one pixel goes bad.

No dead or stuck pixels

My unit has very little backlight bleed and no dead pixels.

No stuck or dead pixels

BTW, I cannot find any Light Bleed or dead pixels.

No dead pixels, worked out of the box w/Windows 10 with no drivers, etc.

Came well packaged, haven't noticed much backlight bleed or any dead pixels

It's not so dense as to render text difficult to read, like a smaller 4K monitor, but it's not like the 2560x1080 monitors which would not provide quite enough pixels to maintain as much visible data.

No dead pixels, very little light bleeding and overclocks to 75hz

No Dead Pixel warranty

I use almost exclusively Dell with the occasional Acer or ASUS.My screen arrived, very well packaged, no damage, no dead pixels (as I've come to expect from the UltraSharp series of monitors).

I have only a very little bit of light bleed in one corner, but hardly visible, no dead pixels, and the color calibration for this monitor is outstanding right from the factory.

Minimal BLB, with a little IPS glow, but with no dead pixels

Zero dead pixel and excellent picture quality

No bad pixels on mine

No dead pixels were found and the fit and finish is good

No dead pixels, very little black light bleed, no issues whatsoever upon arrival

No dead pixels, worked out of the box w/Windows 10 with no drivers, etc.

IMO there continues to be no screen distortion, missing pixels, etc with over 3 months of use.

Only had 2 dead pixels and the pixels are small enough individually that it is hard to notice most of the time; blacklight bleeding in the

I haven't found any bright/stuck/dead pixels, which is really impressive for a monitor with this many pixels

I do not need to work with 4K material, per se, and I like the widescreen aspect ratio.4,953,600 pixels of perfection

but I have no noticeable back light bleed and zero dead pixels

There is NO bleed through around the edges and no dead pixels

No dead or stuck pixels; color's noticeably better than past IPS screens I've used; anti-glare coating is very smooth

The display I was sent was fantastic and thankfully had no issues, no dead pixels, or any other defects.

It perfectly fills my field of view, and the extra pixels on either side (21:9 vs. 16:9) are so nice to have

However, the noticeable pixels really bothered me when I write my code or browse the internet.

Minimal to none black light bleed, and no dead pixel

X34.I give it 5 stars nevertheless because of the following reasons:Overall qualityPrice/Performance is above any other similar 34" 21:9 3440x1440 display currently on the market, including the much more expensive X34 mentioned aboveAbility to overclock the display to 75Hz on Windows 10 remains an open secret killer feature not found on other modelsUser interface easier to operate than the much more expensive Acer monitorNo observable backlight bleed-in or defective pixel to dateAfter getting tired of the endless waiting for the ASUS ROG Swift P348Q, I have opted to get the Acer Predator X34 with GSync as my gaming monitor, however, I did keep the Dell as my primary work monitor in the office connected to my MacBook Pro in headless mode using a $10 DP to

To compare, with the 3415's pixels are more dense, but that seems to give text a crisper look.

Didn't have any dead pixels either!!

Another plus for me is that Dell stands behind the monitor with a 3 year warrenty that even guarantees that there will be not even one bright pixel