Hi Maid, have a look at your visualisation options... In particular, try 3D Visualisations > Slideshow
It's not quite full screen, but works pretty well. It sometimes gets a bit lost, stopping midway between images, but sorts itself out again reasonably quickly. You might like that.
Tip:
Create a smartlist called "3D Visualization Images", set some rules up in there, and slideshow will only use those images. I set mine to only use landscape photos amongst others, as it doesn't handle portrait photos very well.
-marko