Originally Posted by Tim182
I just bought the LN46D550 and am very happy with the display so far.
There is however one thing I have noticed. I notice uneven backlight on dark or black background. Basically, the screen is black and then there is a slightly ligher spot in the middle of the screen, from the top downwards. There are similar spots in the 4 corners but not as noticeable. I can see this with the backlight ranging from anything between 2 and 14. Is this normal for this display or do I have a bad unit?
Thanks for any advice!
Tim, here's your description from the other thread:The top middle backlight (the one pointing to the bottom right corner) is much brighter than the other ones. This is very noticable in a dark room in dark scenes. I have tried every setting. I can notice this one backlight even when the backlight setting is turned to 3 (it goes up to 20). I have tried the eco settings and brightness as well.
I'd describe your problem as clouding; flashlighting typically describes a flare from the corners toward the center of the screen. Since you notice the clouding in dark scenes in a dark room with your backlight set so extremely low at 3/20, I don't think it will go away. I hate to say it, but I'd return it and try another one.
I have a spectacular 3-year old LN52A860 which I could never part with. It came with clouding similar to yours, but milder. However, we never notice it on regular TV programming or blu rays, just on a black screen in a dark room. We use Movie with a backlight set at 3 (out of 10), which is 30%, while yours is at 15%. Since we fast forward thru commercials on our DVR, we skip most black fade out screens between scenes, and we don't watch credits after blu ray movies, so we've minimized the occurrences. When I turn it off, I've noticed the clouding is more diffuse recently, but it took about 2 1/2 years.
In the past 3 years I've set up Samsung 46A and C630s, 46 and 55B640s, and recommended 2B550s. None of these have clouding or flashlights, and the owners are ecstatic.
You didn't mention what picture mode you're experimenting with. Try Movie and set the backlight to about 6 (out of 20). If the clouds are still there, I'd recommend exchanging it... don't bother trying to get it fixed. Let us know how it works out.