When I cleaned the front of my flat screen tv I wiped the cloth over the controls on the front of the flat screen. The TV turned itself off and won't come on again.

To clean your TV correctly, follow these steps:

1. Turn the LED TV off, let it cool for a few minutes, and then unplug the TV.
   
2. Clean the frame of your LED TV with a microfiber cleaning cloth.
3. To clean the screen, first try wiping gently with the microfiber cleaning cloth. If that does not work, spray luke-warm water directly onto the microfiber cleaning cloth. Never spray anything directly onto your TV screen.
4. Wipe the screen with the microfiber cleaning cloth as gently as possible. LED TV screens are fragile and can be damaged if you press too hard.
5. Let the screen dry completely before you plug the TV back in.

Use distilled water and a microfiber cloth for best results. If the screen is really dirty, use a diluted household cleaner, such as 409, either sprayed or sponged on, then dry with the microfiber cloth.

Try a 50/50 solution of water/rubbing alcohol and a micofiber cloth. DO NOT SPRAY THE SOLUTION ON THE SCREEN ITSELF but on the cloth then wipe down the screen. I hope the screen isn't damaged !!!

Flat screens should never be washed. You should only wipe it with a lens cloth or lint free duster. The tv will not work until it has completely dried. I suggest that you leave it switched off overnight and then try again.

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.

The best is a mild solution of washing up liquid and clean warm water.
Use a clean lint free cloth and wet the cloth, wring it almost dry and wipe the screen over until clean.
Repeat this as often as required making certain not to let the cloth drip down the front of the screen.
Hope this helps

Soft dry cloth wipe frequently on LCD screen is the only way. Slightly damp cloth maybe use at your own risk of leaking water into the lcd screen and damge the tin oxide(turn black).

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

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

Its a simple Job 1. Buy anti-static wipes from nearby grocery.( 3M Scotch Brite High Performance Cloth is an excellent choice for screen cleaning 2. Turn off TV and disconnect it. 3. Now wipe off the dust without much pressure on screen. 4.Use a water dampened, non-abrasive or cotton cloth to wipe across the TV screen's surface to remove pet hair, dust and fingerprints. Dry the surface of the TV screen immediately after damp wiping the screen. also you can Buy the screen from different sources as per your convinience. which should not cost You more than $ 10.00 i guess
Cheers!! Gizokieth

Much like anything in your home, TV screens get dirty with fingerprints and dust and require a periodic cleaning. Keeping your TV screen clean is essential for ensuring a clear picture. However, cleaning the front of your TV is not something that should be left for the cleaning lady. The use of certain cleaning products and solvents can damage the front of your TV screen. Special care must be taken in order to make sure that your TV screen is cleaned properly.
Every kind of TV has different steps for proper cleaning. If you are unsure what kind of TV you own, consult your TV user's manual to ensure that you are using the right cleaning method.

• Direct-View - Older direct view TV's can be cleaned with glass cleaner and a paper towel. Newer tubes that may contain any special coatings, like an anti-glare coating, should be cleaned with a damp cotton cloth. If you are unsure if you have any special coatings, it is best to be safe and use the damp cloth.
  
• CRT Rear-Projection - Before you can begin cleaning, you need to determine if you do, or do not have a screen shield. A screen shield is a hard plastic cover over the front of the TV screen. If you can't tell, give the front of the TV a light tap. Another way to tell is to check for ridges in the screen area. If you can feel ridges on the screen, then you do not have a screen shield. Rear projection TVs without a screen shield require a special kind of cleaner and rag. These are available for purchase at your local TV service center. Those that do have a screen shield should be cleaned with a dry or damp soft cloth. If it's extremely dirty, a mild soap may be used. Do not use paper products, such as paper towels, to clean the screen shield. Paper products GA_googleFillSlot("TL-IMU-Article"); can easily scratch the surface of the shield. Screen shields can have a tendency to streak while cleaning. If this happens, use a dry cloth and buff the screen in a small circular motions.
  
• Microdisplay Rear-Projection - All microdisplay TVs have some sort of screen shield on the front. These TVs should be cleaned with a damp cloth. Microdisplays with a shiny screen shield can be cleaned with a mild soap if extremely dirty. Those with a flat screen shield should not be cleaned with any cleaning agents. Do not use paper products to clean the front of the TV because they could scratch the screen surface.
  
• Plasma - Plasma owners should clean the front of the TV with a soft, damp cloth. The use of a mild soap for heavy cleaning is acceptable. The use of heavy cleaning agents could strip the special coatings on the screen, and paper products can scratch the front of the TV.
  
  
• LCD Flat Panel - Be careful with flat panel LCD TVs! Use a slightly damp soft cloth to clean the LCD screen, then immediately dry with a soft cloth. Do not press hard on the screen during cleaning. Doing so could cause severe damage to the display. Do not use any cleaning solvents, such as glass cleaner or soaps, to clean the LCD screen. Paper products could scratch the front of the screen. If you have a pet or child that rubbed something on the screen that you feel could stain or damage it, contact your local TV service center for assistance.

When dusting the TV cabinets, dust with a damp cloth or a mild cleaner. Paper products can scratch the surface of high-gloss cabinets, so avoid paper products. Heavy cleaners can strip the finish off of TV cabinets over time. When cleaning speaker grilles, dust with a dry cloth. Wet cleaners could stain or damage the grille cloth.