Here are some helpful cleaning tips and guidelines:  
Unplug or turn off your LCD screen or device and closely examine the condition of the screen.

Take notice of any smudges or areas to be cleaned.

Use a Microfiber Cloth to remove any obvious dust and gently brush off any dirt particulars.

Although you can clean any LCD screen with a 50/50 solution of distilled water/isopropyl alcohol, using an old cotton T-shirt or handkerchief, it is recommended that you acquire the proper cleaning solutions and cloths to clean your LCDs. Many of these LCD screens are very expensive items, proper cleaning kits, should be used to clean and keep your LCD displays in a crisp clear pristine condition.

Never spray any cleaning solutions directly onto the screen, spray it into the your cleaning cloth.

Very, very gently wipe the screen in a circular motion. Do not press hard on the cloth. Let the cleaning solution do its job.

Don't press hard or touch the screen with your fingers or you may leave oily prints and smears.

Don't leave any liquid on the screen, remove all excess moisture as it may damage your screen.

Let the LCD screen dry thoroughly before you switch it back on.

For hard to remove stains or ink marks you may have to repeat this procedure several times. Don't apply hard pressure, remember you can also purchase special cleaners for heavy ink marks and the like.

Related LCD Panels:

15.4 Inch
15 Inch
14.1 Inch
13.3 Inch