If you have a laptop or PC you can connect to your TV, give this a try:
UDPixel - udpix.free.fr
Its a free application called UDPixel. It forces rapid pixel colour changes to take place, and can sometimes "wake-up" pixels. Run it for a few hours.... and check for results.
I used it with success a few times when I was providing tech support for a major computer manufacturer. Not all stuck pixels are dead!
All LCD appliances use an ISO standard for LCD repair/replacment coverage called the "Dot Pixel Defect Standard". In a nut-shell, it states that there is an acceptable minimum number of dead pixels that is perceived as "normal" and is not covered under repair or replacement warranty. In most, if not all cases one dead pixel does not warrant a repair or replacement.
This is a C/P directly from Samsung's warranty policy:
One or two dead pixels out of the approximately 300,000 to 1.3 million pixels on a typical LCD television is normal. Generally, then, if you have only a few dead pixels, service is not an option.
With that said, what we do about an LCD TV with dead pixels depends on:
- The number of dead pixels
- The location of the dead pixels
- The color of the dead pixels
- The size of the LCD TV screen
If you are having a serious problem with dead pixels, gather the information listed above and call Samsung Customer Care at 1-800-Samsung (1-800-726-7864). Have the model number and serial number of your TV on hand when you call.
Good luck!