Samsung HereI have the Samsung Screen, the X7466, people please mentin which panel you hvae by its number so we can discern which panels are good and which ones are bad.
Now about my panel, I has alot of light leakage, a pattern similar to those pics I think Desptes posted, with what you call a "pinch" at the top of the screen. The screen has a bit of sheen to it, a transparent anti reflective sheen that is hardly appparent compared to theLG screens I have seen and used on the inspirons whic have a metallic/dirty sheen on them which is more noticeable.
My screen is very very very bright and is a WXGA+ ultrasharp (no it's not glossy silly wabbit). and the viewing angles on it are exceptional, I can walk around the entire room and make out whats on my screen rather sharply, ( no I cant read the text from across the room but I can see pictures and so forth very sharply. I can also move from left to right and tilt the screen back a good thirty degrees without suffering any picture quality.
Overall I am very happy with this screen, like I said its bright, compared to Lg's its brigther and viewing angles much better, some Lg's seemed a bit sharper but nothting I cannot adjust on my screen through settings and nvidia vibrance. At highest brightness setting my screen is a bit too bright, I usually view it two or three settings down from maximum brightness, soo much for all those people who say wxga isnt bright enough, I think this has nothing to do with WXGA at all, but everything to do with what LCD panel you get, soo many people attribute qualities to the resolution that have nothing to do with resolution at all!! ( yet another reason that when you are talking about your LCD, you need to be telling us what model number you got, not just whether it was LG or Samsung).
Compared to the LG's Ive seen I see no reason to return it for months of replacements. Ive noticed that some like the LG others Like the Samsung, why is this? Probably because these folks arent looking for problems with their screens soo much. My research shows that everyone who has my particular panel is very happy with it, so am I.
If you like your LG panel........great.......if you like your samsung...great........enjoy your screens. My analysis of both of them is that the LG can offer better contrast while the samsung has better viewing angles and screen brightness while the LG offers less light leakage though both have light leakage and the light leakage ON BOTH MODELS FADES IN TIME.
I have discovered that there is an aluminum adhesive strip at the base of these LCD panels that is most likelly a heat spreader of some sort and that this is the cause of the light leakage. A user reported using some type of thin copper film in place of this and his light leakage totally disappeared, I will try to find out more about this phenomenon.
Hence why some report more light leakage after their monitor has been on for ten minutes or soo.
Hopefully we can find a good modding to fix this problem since Dell isnt going to do it.
The moral here? It's not necessarily a bad screen folks its a thermal problem and thermal problems can be addressed.