My EW2420 experience 
Ok. Received it on monday. In case someone's interested about my feelings towards the EW2420, here they are...
First I must say that I ordered the V2420 a month ago [TN] but being very unsatisfied I have sent it back. It had a problem with the upper 1/3 of the screen darkened (uniformly) and uneven displaying of an even picture (different but easy to confuse with a backlight issue).
I saw then the VA version and having already experience with that silly thin V-series construction I chose EW2420.
The construction of it is much better than in V-series which I suppose may be related with higher probability of backlight problems. The V's are so thin that I asume it's easier to shift something for about a 1mm during assembly and make the whole display one piece of cr**p
My point is that the thicker and more conventionally built EW2420 would lack of such backlight problems.
The EW series is VESA mount compatible (V-series isn't) so if somebody is unhappy he may make some upgrade with the stand. The stand of the Vseries is very bad too. Well, it's maybe nice-lookin' but very delicate and unstable. At the time of ordering the BL wasn't available and isn't still in Poland. It may be a bit pricier but I really didn't care about the BL-stand.
As I expected the EW is much more stable and rigid. The monitor is even better packed and secured than the Vseries. There was no DVI cable as I expected. Just the VGA one, USB, power and audio.
The USB-thing is well... even useful. I have a portable external drive which shouldn't be moved when turned on. So now I can put it behind the monitor and not worry about it. I doubt however that there's much more to do with it. My Logitech wireless mouse receiver works, but the mouse is less responsive and the moves are harsher.
Sound... it's very bad. Not only because of the speakers quality, but the electronics cut of the basses. Just like someone here noticed. I checked it with headphones. So don't expect anything else as mediocre sound. Rather useless.
Right... so as I was badly surprised with the V2420 I wanted here to check everything and searched right away for any kind of problems.
I noticed that the assembly work wasn't done perfectly. The screens boarders are shifted / moved to the left about 1mm, so the space between the plastic and the displays edge on the right is 2mm, but on the left 0mm :/ Eventually I decided not call it a problem.
Then I saw also immediately the ripple on the lower edge. It's not very disturbing, but it's present.
I would be happier without it but I am not so eager to send another monitor without good reason.
No bad pixels. Actually there was a time when I thought that pixels are the only worry of monitor buyers.
Backlight is even, with a small exception of very difficult display situation.
The uniformity of the LCD panel is good to. I can't say how good, because the last monitor I used besides of the 3 years old TN display on Lenovo N200, was an 8 years old
15'' Samsung that eventually stopped working xD last spring.
I had to look around and see what others have. So now I rather think it's about very good or perfect.
Now... I must say what I noticed. The monitor behaves perfectly during all typical tests in therms of the picture quality. White / Black / 3x Color and so on. Everything is uniform.
As I wanted to emphasize any potential drawbacks I checked also uniformity of the display on darker colors, because then the former V2420 monitor exhibited the worst behavior.
Some other person tried the same when having problems with "finger-like" shadows.
Anyway... I wonder if all (literally) displays will exhibit any kind of shades on a uniform picture filled with colors like...
H = i.e. 211
S = i.e. 50%
B = 10-20? % thats the brightness setting of the color in Photoshop all becomes a bit more noticeable
My EW2420 looks rather perfect on a typical test, but if I would like to I could find some blemishes on image quality. It would be interesting to see the high-end performing in such scenario like this one above. Because now I can't even tell if it's common or uncommon to see not that perfect image uniformity
So in terms of backlight bleed or shade/ uniformity of the panel etc. All looks perfect besides of that 1 situation. What made me certain that Benq does a good job was this
:
http://www.tftcentral.co.uk/reviews/...htm#uniformity
If you want you can measure the brightness differences with any camera, even a compact one. You zoom in a bit putting the lens close to the corner and half-press the shutter button to measure light. Remember the numbers and compare with the center. The distance from the panel must be the same. I did it and after recalculation it's about 20% of difference in that specific dark situation. Full white or black doesn't show any difference with this DIY measurement.
What's next... ah, the settings.
I decided to go for gamma 2.0 , contrast 50 (100 when watching movies probably), brightness 25 for now.
I loaded some other person ICC and on this basis I tweaked it further in Adobe Gamma accordingly to have gamma of every color in the right 2.2 position on Lagom (
www.lagom.nl/lcd-test/gamma_calibration.php ).
After that I changed in-monitor color for User Settings = R100, G96, B92 ... which is based on NCXs review.
I use Dsub connection so sharpening is on max. value = 5 [it is a must to correct the non-digital signal which gets some noise during computer-to-monitor transfer etc.]
And yeah, it has some 'black-crush' effect. To not be able to see the brighter corners you will have to sit at the distance of at least 1.5 or 2 meters.
Speaking of angles when viewing movies (at night), the view is near perfect when watching between -20* and +20* (assuming that 0* means perpendicular). Further... it's still between watchable and very nice, depending on the scene type. Haven't sorted it out yet, what exactly would work best for movie watching. I'm thinking about Contrast 100 and brightness 25 or around 60 as some reviewers suggest.
The EW hasn't got the ability to turn the Dynamic Contrast in standard or any other mode that's not horribly oversaturated. Funny, because in the V2420 I thought I was able to turn it on in Standard mode. The degree of oversaturation seems also a bit worse than V2420. I guess they've put the electronics from the TN versions without configuring it more properly to the new VA panel.
I am not worried about speed, so didn't test the responsiveness to much. I don't see differences here between my notebook TN display and this is enough for me...
Weird... that brighter left end of the display...
In Lagom viewing angle test it shows a gamma shift. So... it's not a backlight bleed problem or anything else but a viewing angle one?
Strange, because it's just on 1 side. As if there would be something in the display slightly misaligned. Anyway... I guess I will live with that. I feel lucky enough to have a decent monitor at all... it seems a bit of a lottery with these things. I wish they made monitors like digital cameras. You buy them, and they're OK or NOT OK.
Not 98.4% OK, or 93.3% or 99,1% ;P
I guess in the next 8 years they or the market will solve that finally ;D
Se next time I will get perfect one ;>
Good luck guys, although I hope you won't need it while hunting for some decent display
PS. I know it didn't help you probably (there are already pro-like reviews) but it sums some things up, maybe from a bit different perspective
- 
. It is good that you have a monitor that you are happy enough to want to keep for 8 years if you can. Haha. In a few years time we will have nice OLED monitors (check my signature link) that will hopefully iron out a lot of the problems that come from the backlight and how the monitor is sandwhiched together.