What is this smear / mark on my 30" cinema display?

[Gomff]

I've got this smear / mark on the right hand side of my apple cinema display that's been there for a while now. It doesn't show up immediately when I switch the monitor on, but after about half an hour it gradually appears. It's more noticeable in front of greys than whites....Anybody know what it is?

 

[Macman45]

Does this appear in all apps? If so I'd say take it back. That looks like a hardware fault to me, have you tried attaching it to another Mac? Might be worth a shot, if it still shows up then return it.

 

[Gomff]

Does this appear in all apps? If so I'd say take it back. That looks like a hardware fault to me, have you tried attaching it to another Mac? Might be worth a shot, if it still shows up then return it.

I wish I could take it back and get a new one......It's 5 years old

Seriously though, the mark has been appearing for a couple of years now. Because it's at the side of the screen it doesn't stop me from working but it's annoying.

It's most noticeable when the screen is displaying greys and blues in that area, and hardly visible when the screen is displaying whites / light colours. In front of blacks it is invisible.

 

[drambuie]

I have a ten year old NEC display that has had similar markings on the right side for at least five years. I think it's just a shadow or artifact from the CCF lamp aging. The shadow on my NEC display hasn't shown any evidence of getting worse.

 

[Gomff]

I have a ten year old NEC display that has had similar markings on the right side for at least five years. I think it's just a shadow or artifact from the CCF lamp aging. The shadow on my NEC display hasn't shown any evidence of getting worse.

Yeah, I get the sense this is something similar.....More connected to the lights illuminating the screen rather than the screen itself.

 

[JMG]

It's a sign from god to get a new monitor.

 

[Gomff]

If God wanted me to buy a new monitor, then there would be a spare £1000 kicking about

 

[thevode]

I have the same problem with my Apple Cinema Display 30". Any solution???.

 

[theSeb]

Does it disappear after a while? I had something similar on my 24" ACD. It would appear after 1 hour and grow and then disappear gradually. I realised it was actually condensation, but your problem looks slightly different.