The "energy savings" (power options) settings may need changing. Set the base as for the computer being "always on", the hard drive never shutting down.. and a default screen saver as 'blank screen' after 5 min. or so. There also is a control line for hibernation and standby settings.. should be "never". Yes, the monitor can be turned off after perhaps 20 min. of inactivity. You could use any screen saver you want, to draw attention to a logo or banner. But with LED or LCD monitors, no worry about "burn-in" as with CRT monitors.
F@H.. to solve mankind's maladies.. in our lifetimes!