LCD and how it works is on the web. But here's the deal. Folk new to this technology want absolute consistency over the display area. We only saw that on Plasma and some projection displays. LCD and the way it works will see variance across the panel under some conditions.
Mostly you have to push it to see it. For example, a dark room with an all black screen should show what I see above (on LCD.) How to share how this technology works is a challenge.
But for normal use with a moving image, you rarely spot this issue.
Hi, I just purchased the Samsung 55J6300 "Curved" LED TV. I noticed that the backlight is too visible during football matches and in solid gray background. Looks like a darker borders around light squares.
http://i.imgur.com/OLe9yeY.jpg
http://i.imgur.com/LbEcl5U.jpg
And during rtings.com test videos it also appeared.
http://i.imgur.com/FUSFxoT.jpg
http://i.imgur.com/IgpODj9.jpg
In darker scenes i noticed faint lights emerging from both corners with the left one being the worse. It's horrible on movie mode with the left corner is blue and the right one is white!
http://i.imgur.com/pBGda1v.jpg
http://i.imgur.com/98dUSDG.jpg
And from the sides it's even more worse!
http://i.imgur.com/cNYnuOP.jpg
P.S. I took the pics both in dark and light in my room.
Is both of these problems normal in LED TVs?
1- The dark borders around the backlight
2- The lights emerging from corners "bleeds?"
If it's a defective i will get a refund hopefully and won't replace it.
Please help!
Thanks in advance.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic