Years ago when TV screens were made of glass, it was easy to clean a TV screen with simple glass cleaner (like Windex) and a couple of paper towels.
However, today’s modern video screens are made differently. As a result, extra care must be taken when cleaning flat screen TVs and computer monitors.
Harsh chemicals such as ammonia or alcohol can do serious damage to LCD screens, plasma TVs, computer monitors, and smartphones. This also includes all laptop computers and portable video games, as well.
Virtually any device that produces a picture that is manufactured today will be damaged by harsh cleaning chemicals.
When you improperly clean your screen, be it your computer monitor or your television, it’s only a matter of time before you damage it. Modern HDTV and computer screens are brighter, sharper, and more responsive than ever before, but they are also more delicate. Source
Here’s what you need to know to clean LCD screens on your HDTV or computer monitor.