I used a 20% off coupon so I got 2 of them for $478.40 plus about $40 TX sales tax (shipping was free).
Resolution: 1920x1080 (16:9) WIdescreen
Cables Included: USB, DVI (single link), VGA, power (DisplayPort cable NOT included)
Panel Size: 58.42 cm (23”)
Panel Type: IPS ( In-Plane Switching )
Contrast Ratio: 1000 to 1 (typical), 10,000:1 (dynamic)
Brightness: 300 cd/m2 (typical)
Response Time: 8ms (gray to gray)
Viewing Angle: (178° vertical / 178° horizontal)
Color Gamut: 82% (100% sRGB coverage)
Color Depth: 16.7 million colors
Pixel Pitch: 0.265 mm
Display Type: Flat Panel Display
* 1 Digital Visual Interface connectors (DVI-D) with HDCP
* DisplayPort (DP)
* Video Graphics Array (VGA)
* 1 USB 2.0 upstream port
* 4 USB 2.0 downstream ports
* DC power connector for Dell Soundbar
Voltage Required: 101 to 240 VAC / 50 or 60 Hz ± 3 Hz/1.5 A (Typical)
Power Consumption (Typical): 33W (without audio and USB connection)
Power Consumption Stand by / Sleep: Less than 1 W
I have owned many Dell monitors and I can't recall any of them ever failing or needing warranty service, and the three year limited hardware warranty of the Dell U2311H is assurance that it will last like the others. Dell also says:
Backlight BleedingPerfection down to the last pixel:
Dell UltraSharp displays are designed for perfection in every pixel. In the event you discover even one bright, defective pixel during your limited hardware warranty period, we'll exchange your monitor at no cost to you.
There is some backlight bleeding but I think that is to be expected. I'd say it's only really noticeable if there are large solid black areas on screen. For my use, I don't find it an issue. White/gray text on a black background looks great (the black background looks very black).
Some people have reporting tinting problems (uneven tinting) with the Dell U2311H. I took a photo of a blank Notepad screen (with a Canon 7D). I don't see any obvious tinting problem. If there is uneven tinting, then it's not easily visible. Here's a link to the photo:
https://www.htmlvalidator.com/jpg/dell- ... inting.jpg
A little more testing with colors in Photoshop (after shrinking the image):
Top left (R, G, B): 179, 179, 182
Bottom left: 184, 182, 185
Top right: 197, 198, 197
Bottom right: 200, 200, 201
That looks pretty good to me color-wise, but the right side is slightly brighter than the left, at least based on the photo and the color readings. Any actual brightness difference is still not easily visible to my eye. I wonder if using a slight bounce flash could affect this? I probably shouldn't have used the bounce flash, even though I did reduce it (-1 stop) and the flash was pointing up & backwards. I may try this again without any flash at a later time.
I took another shot on 2010-05-26 without flash:
Processing done: crop, reduce, Gaussian blur, then measure colors with Photoshop's color picker.
Left top: 178, 179, 179
Left bottom: 177, 175, 180
Center top: 193, 193, 195
Center bottom: 194, 193, 195
Right top: 193, 193, 193
Right bottom: 196, 196, 196
So... my conclusion:
1. There is very minor (negligible) tinting in the lower left.
2. The left side is also a little darker than the right side, so panel luminance uniformity is affected. The left bottom seems to be the darkest and the right bottom the brightest. I wonder if the brightness difference could be exaggerating the tinting issues that some people are reporting?
3. To the naked eye, it's very difficult for me to see any defects. I have to look for it and be picky.
4. It's not a perfect monitor, but I still really like it... and I doubt you'll get anything closer to perfect for this price.
* Units shipped on Monday (5/17/2010) and were received two days later (Wednesday) via FedEx - signature required
* Units came with VGA cable attached to the panel (would not have preferred this)
* Units were manufactured in April, 2010
* I'm upgrading from two 22" Acer P223W 1680x1050 monitors (TN panels)
* Looks like one of my units came with a piece of hair trapped in the bezel
* I use my monitors for productivity, not fast action gaming
* I'm using the DVI connection but may switch to DisplayPort so I can run 3 monitors on one or both of my ATI 5770 cards
* I'm not using the included stands but an Ergotron vertical stand that supports two monitors, one above another - was very easy to remove my previous monitors and attach the Dells
* Significantly better picture than my previous Acer monitors which were about 2.5 years old and TN panels
* Superior viewing angles compared to cheaper TN panels
* Nice display controls - one of the easiest I've used
* Very bright - I turned the brightness down to 30 (originally 75)
* Colors are impressively "vibrant" and "crisp"
* One of the first things I did was calibrate it with a Spyder3 - and it went well, with much less calibration needed than my previous Acer monitors
* The 16:9 instead of 16:10 ratio works well for me in my vertical (one on top of another) configuration so I'm fine with it; in fact, it's better then 16:10 when you stack these vertically
* The power usage specification of 33 watts seems impressively low
* Measured with Kill-A-Watt: 1 watt off/standby, 28 watts on! GREAT!
* I am very pleased with the purchase. Highly Recommended!
I have been using these monitors about every day since I bought them (except for when I was on vacation), and I am still very pleased with them. I am now running both with the DisplayPort interface. The only questionable event I experienced was when I noticed one or two of them blink off briefly, maybe 2 or 3 times since I've had them. I am not sure why but it is very infrequent and may not be a monitor issue (it may have been a signal issue from the video card due to an issue with the video drivers). That said, I still highly recommend this model for productivity work (what I use them for).
DisplayPort (great for ATI 5000 series cards), DVI, VGA, and USB connectors:
The two monitors are on an Ergotron stand. To the right of them is a Dell 30" 2560x1600 monitor:
The below image doesn't do it justice but it may help. Colors are impressively "vibrant" and "crisp". Click on it (or any image) to see it larger.
I really like the onscreen controls. There are 4 indiscriminate control buttons in the lower right front of the monitor, above the power button. I found it very easy to adjust the RGB values while calibrating and turn down the brightness: