Turn off your device. If the screen is dark, it will be easier to see the areas that are dirty or have oil on them.
Use a dry, soft cloth and gently wipe the screen. A good choice would be the microfiber type of cloth used to clean eyeglass lenses. Using a dry eraser works well too.
If the dry cloth didn’t completely remove the dirt or oil, don’t press harder in an attempt to scrub it off.
Pushing directly on the screen can often cause pixels to burn out, especially on laptop displays, desktop monitors, and LCD/LED TV screens.If necessary, dampen the cloth with distilled water or with an equal amount of distilled water to white vinegar.Don’t use paper towels, toilet paper, tissue paper, or something like your shirt to wipe the screen. These are not soft enough materials and can scratch the display.Avoid cleaning products that contain ammonia (like Windex®), ethyl alcohol (Everclear® or other strong drinking alcohol), toluene (paint solvents), as well as acetone or ethyl acetate (one or the other is often used in nail polish remover)These chemicals can react with the materials that the flat screen is made of or coated with, which could permanently discolor the screen or cause other kinds of damage.Never spray liquid directly on to any screen. It could run inside the device and cause damage.