Most Laptops and LCD screens are very sensitive and you need to take huge care while cleaning them. Since the screens are very delicate you need to make sure you dont just start rubbing them with any cloth or cleansing detergent liquid. You need to keep in mind that when you use some available stain removing liquids in the market, they are full of strong chemicals which can leave marks on the screen or even burn it. Also using normal Tap water can leave behind white marks because of the salt present within it.

1. Turn off the monitor. If the screen is dark, it will be easier to see the areas that are dirty or oily.
2. Use a dry, soft cloth and very gently wipe the screen. A great choice would be the microfiber type of cloth used to clean eyeglasses. See Tip #1 below for kinds of cloths to avoid.
3. If the dry cloth did not completely remove the dirt or oil, do not press harder in an attempt to scrub it off. Pushing directly on the LCD screen can often cause pixels to burn out.
4. If necessary, dampen the cloth with distilled water or with an equal ratio of distilled water to white vinegar. See Tip #2 below for products to avoid. Many companies also sell small spray bottles of special cleaner for flat screen monitors but the vinegar mixture is usually just as effective.
5. The plastic edge that surrounds the screen can be cleaned with any multipurpose cleaner but take care to avoid contact with the screen itself.

Clean Large Laptop Screens

Tips:
1. Avoid using paper towels, toilet paper, tissue paper, or something like your shirt to wipe the LCD screen. These non-ultrasoft materials can easily scratch the screen.
2. Avoid cleaning products that contain ammonia, ethyl alcohol, acetone, toluene, ethyl acid, or methyl chloride. These chemicals can react with the materials that the LCD screen is made of which could yellow the screen or cause other kinds of damage.
3. Never spray liquid directly on the LCD screen or it could run inside the monitor and cause damage.