Dell U2410 ISSUES ?

Yes, it's nothing that any amount of calibration can fix. This is why it should be considered a fault.
 
I've just got a U2410 A01 and there's no significant left to right tint, but there is a definite tint top to bottom. I don't know if its a tint or just uneven backlighting but it goes from a colder white at the top to quite an off white at the bottom - any one else seen this?
 
Yeah that is extremely common in any LCD monitor (even the great U2410 it seems). I've actually yet to come across a monitor that will display perfectly even whites :(. Sometimes it is 'cooler' at the bottom, sometimes the top and sometimes to the side. This U2410 test sample has a slightly warmer right side than left side. It is indeed to do with uneven backlighting but it seems to affect LED-backlit panels just as much. I didn't get to test properly but I am hoping OLED screens will eliminate this issue seeing as they don't have a backlight.
 
PCM2 said:
I've actually yet to come across a monitor that will display perfectly even whites
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Thanks for the reply.

According to my calibrator the U2410 isn't as good as a 2405FPW and 2407WFP in that respect but obviously they also use a PVA panel technology so maybe that gives them an advantage (or I've got particularly good examples).
 
Probably a bit of both. I think the F2380 probably had the closest I've seen to even whites (and that's a cPVA panel) but they weren't perfect by any means. Will it be a problem for what you use the U2410 for?
 
PCM2 said:
Will it be a problem for what you use the U2410 for?
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I don't do colour critical work as such, the reason for using hardware calibration is to match multiple monitors. So having a somewhat yellowy section of the screen is an annoyance especially when the screens either side are more even.
 
Yeah I can understand that would be annoying. What are the other monitors in the setup like, visually, in terms of evenness? Is it basically more pronounced on the U2410? Also are the FPW the 'high colour' broad gamut varients? Depending on how severe this unevenness on the U2410 is it could partly be a tinting issue that is exacerbated by the colour gamut.
 
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The other monitors have almost no visually discernible change in whiteness. The others are non wide colour gamut monitors and the U2410 is in sRGB mode. The U2410 has enough change that I can tell the difference in greys and other light colours. The top left is the coolest white and the bottom right the warmest.

I've viewed an HP LP2475W and that was also very even but the lack of a fully functional sRGB mode meant it would always give over saturated colours in my setup unless as I don't use many CM apps and don't want to tweak graphics driver settings given I calibrate.
 
It sounds like it could just be the usual backlight uniformity issue I'm afraid. I don't know PVA panel technology well enough to say why they tend to be more uniform in that department, but I do know the contrast is excellent and they are supposed to be one of the best currently available for 'whites'. The uniformity on my U2410 test sample is not perfect like I said, but it's actually pretty good. You could always hit Dell up with an email if you think it's a real problem and see what they say. I haven't dealt with their customer services before though.
 
PCM2 said:
The uniformity on my U2410 test sample is not perfect like I said, but it's actually pretty good.
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There does appear to be a lot of variation as I've now got another u2410 made in the same month but far better. There's less than half the luminance and white point variation of the first, and to the eye any difference across the screen is very hard to detect.

Interestingly it requires twice the brightness setting to match the other one's luminance which makes me wonder if this is just a variation in the dimming electronics or whether the backlights and panel used may vary slightly.
 
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