The ammonia will definitely cause problems. Tap water contains minerals that can leave water spots or residue on the screen, so distilled water is the only way to clean your LCD screen without leaving streaks. How to remove streaks on LED TV? Try cleaning your windows with soap and water (without a squeegee) and see how long it takes before you don't see streaks. You should be able to get it at most regular and on-line stores that sell monitors or TVs. Use a dry, soft cloth -- the kind you would use to clean your eyeglasses -- and very gently wipe the screen. 9 years ago. ... sticky residue or streaks. To clean fingerprints and greasy smudges off your TV screen, get a bottle of screen cleaning solution. Bottle of white vinegar. Here's how to clean a flat screen TV: Turn off the monitor. How to clean LCD screen without leaving streaks? What is the best way to clean a flat screen TV without scratching it or leaving streaks on it? A dirty TV or computer screen is not exactly pleasant to look at. So, of course, it is important to know how you can clean your TV screen safely without causing any damage to it. For safest cleaning, be sure to shut off your TV. Turning the device off also prevents you from accidentally pushing buttons you don't actually want to push, which happens a lot when cleaning touchscreen devices like tablets, iPads, etc. Finally, don't make the mistake of using regular glass cleaner or other household cleaning products on a flat-screen TV. Relevance. Lv 7. Spray the screen with a detergent gel cleaner designed for LCD screens. Yeah, that's a bad idea, on any kind of transparent surface. kg7or. Here's what you need: Distilled water. So how do you clean them properly? While you'll find countless cleaning kits and specialty products marketed towards the flat-screen owner, most experts recommend using good old-fashioned water to clean your screen without damage. Gently wipe the screen in a circular motion with the cloth until the screen is clean and dry. This is how I clean my plasma screen and two LCD computer monitors, and it works great. My YouTube Video for How to Clean a Flat Screen TV. LCD TV screens have a plastic film over them that allows the liquid crystals in the display to show the picture at optimal quality. Do I need to switch off my TV screen before cleaning it? But one that’s all scratched up and damaged is not better either. Read on as we show you how to safely clean your expensive screens. When cleaning, do not substitute tap water for distilled water. Spray your microfiber cloth (not the screen). The process is not difficult at all if you follow the right steps and use the right tools. It’s cool for glass, and was OK on your old TV, but do not use it for your flat screen. If the screen is dark, it will be easier to see the areas that are dirty or oily. How to Clean a Flat Screen TV or Computer Monitor. If there are hard-to-remove stains, you can dampen the cloth slightly with distilled water, and gently clean the screen.