How to clean a Samsung flat panel TV screen?

my be the control buttons are pressed hard by your strong hands and not released yet ?

If water have entered inside the panel, you have to disassemble the set's panel to wipe it out. Normally, there is no possibility to enter water into the panel. Anyway, it will be best to contact any service technician. Disasembling panel is a skilled work.

You can get LCD screen cleaning kit from any electronic spare part selling shops.

Turn your TV off and let it rest for 15 minutes. Doing so will cool the screen down, making the screen safe to clean.
Use a soft cloth with a mild soap solution to clean the TV. I recommend to avoid use a cleaning solutions as it may damage the screen in the long run.

Please let me know if you require further assistance. Thanks for understanding.

You can try the special cleaning napkins for laptops, you can buy them in every electronics shop. Operate very softly avoid pressing on the TV surface. If even that doesn't help, well, it will remain like this, because of phisycally damage.

Pleadge has a new product out that is just for cleaning electronics like tv and computer screens. it works great

go to walmart or best buy and buy you some lcd cleaner....its specially made for lcd/flat screens and will not harm it ...just follow the directions provided with cleaner and your done :)

The only safe way to clean a flat screen is to use a microfiber cloth. Use the cloth alone on the television screen but if there are resistant stains lightly mist the cloth (not the television screen but the microfiber cloth) with water from a spray bottle. Try wiping across the television with the slightly dampened cloth and wiping back over it with a dry microfiber cloth. Even when the screen cleaning kits say they do not contain alcohol and that they are safe if it turns out that there was accidentally a wrong ingredient added to the mixture it is too late to do anything once it has been applied. The screen would just be messed up, and warranties don't cover that.

Disconnect the power to your TV before you clean it each time.
Choose either lukewarm water or a cleaning solution to clean your TV. Commercial cleaning kits that include both a cloth and cleaning solution are available. These cleaning solutions are specially formulated to clean flat screen TVs and monitors safely and are specifically labeled safe for "laptop screen" or "LCD screen." If you wish to use a solution, you must use one of these.Dampen a soft cloth (preferably chamois, micro fiber or 100 percent cotton) with either the lukewarm water or cleaning solution. Just a gentle wiping of the screen is enough. Rubbing, scrubbing and hard pressure can damage the screen.

Monster Cable Screen Clean.
(you can buy it at every major electronics store)

http://www.monstercable.com/productdisplay.asp?pin=2350