Question about Sony BRAVIA KDL-40S2010 40 in. LCD Television
(SONY BRAVIA KDL52XBR6) i whent throw two sony bravias in 1 week.the corners have a whiteish apperance on dark seens and when the room is dark, that is the only time you can see the whiteish corners. its like there are magnets around the corners.(there are no speakers around the TV) when there are brite seens or the room is brite you cannot see the problem, but everything else looks great. Thanks for you help.
This is called a dark shading error. All the LCD consumer sets have some visible degree of this effect. Some will be a little less or more than others even from the same batch in the assembly run. This has to do with the optical design quality of how the back-plane lamps illuminate the screen. The design and assembly tollerance of this area is very critical.
Normally, LCD screens don't show their best picture in a darkened room. The very black regions of the picture content may look a little washed out. LCD screens are best watched in a room that is lit, but not very bright. You have to consider that there is a powerful set of lights behind the polarized panel of the LCD display, and there will always be some breakthrough of light.
If you want a TV that is more like a CRT in its characteristics a Plasma would have been a good choice. The trade-off with the Plasma is that it does not have the picture sharpness of the LCD. A Plasma set is best watched in a darkened room.
If you have an LCD computer monitor, take a look at it in a dark room with a black screen. You will most likely see the dark shading errors. Only the very expensive production studio type LCD monitors have less of this error than the consumer sets, and they are not absolutely perfect.
Posted on Jan 31, 2009
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