take_care_your_screenLCD screen is high sensitive and vulnerable to vibration or pressure as its inner structure consists of liquid crystal and polarizing filter to polarize the light from the source. So you should avoid contacting screen with fingers or any solid objects.

Use suitable solvents to specifically clean the LCD surface. Or you may soak a piece of cloth and let it dry to wipe the screen gently in the same direction. Do not wipe in clockwise motion because it can scratch the screen surface.

Note not to spray water or any liquid cleaner directly to the screen but on a piece of cloth. This is because a drop of liquid may penetrate to speaker, keyboard, and any electronic components that can seriously damage the device.