I wonder if you have ever asked about what screensavers are in fact. Because i did i made a little research and i am willing to share with you what i learned. If you split the word "screensavers" in to separate words it will result the words "screen" and "savers". So screensavers are some kind of applications that "saves your computer". So a screensaver can only mean something good for your computer. But the real question is what does exactly means? You must ask yourself if it will harm your screen or it will help it. You can find all this just by knowing the definition of the screensavers.
If you are curious and you search the net you will find a many definitions. But i will try to list the best of them in this article.
1. So a screensaver is some kind of a moving picture that appears on your screen (cell phone / mobile ) if you haven't press any key for a period of time that you can set. Screensavers prevent screen damage that is caused when the same areas of light and dark are displayed for long periods of time.
2. A screensaver is a program that activates after a certain amount of time has passed with no keyboard or mouse activity and blanks the screen or display moving various objects across the mobile screen; these are used to prevent your screen from getting "burn in". So i think that you are begriming to understand