dark band on display
Sorry for my English is not perfect. I am Italian.
I have iMac 24". On the display appeared halos(bands,lines) blacks, see photos. What may have happened?
Model A1225 / Early 2009 / 2.66, 2.93, or 3.06 GHz Core 2 Duo processor
Looks like a mild case of backlight bleeding.
Judging by the photo it doesn't strike me as product-threatening, but you might want a second opinion.
and nothing's wrong with your English, it's perfectly understandable.
I fear you're looking a ta works-as-designed issue, I've seen Dell notebooks, HP All-in-one's and branded monitors you name it... displaying similar issues(Though most in a larger degree).
-IF it really is a defective product, an applestore should be able to have it replaced, no way that's a case of Customer Abuse.
-If it IS normal operation, no replacement part is going to resolve.
I live in Italy is not the North Pole. In Italy the temperatures average around 20-24°C (74-86°F). No near windows, no wind cold, no air condition. House temperature is 19-21°C(66-70°F).I think LCD defective. I think LCD panel of poor quality, not good. Economical.