If you are not to turn off the screen when you leave the computer, it would be very interesting if you considered using a screensaver -also called screen saver-, since it preserves the quality of it and it looks fantastic if the screensaver is good.
The one that concerns us at the moment is for me one of the best screensavers that I have seen for a long time, so it has become the one I use.
Is free, so you won't have to loosen your pocket to use it.
Download | Segmentus Screensaver
Source | applesphere