ScreenSaver on FEZ display

Maybe one of you guys knows how to deal with this.

I have an application on FEZ with 7" display working just fine. However, the display most of the times has nothing to do and (in this case) only displays the customers logo and some date&time info.

Is it allright for the display to show the same picture most of the time (nearly always) or is it better to implement some kind of a screensaver under these circumstance?

TIA Jos

Those TFT displays shouldn’t have the burn-in issue found on old CRT monitors but it is a good idea to give the display some time off