How do I create a start up logo

When I click on the exe file of the game, the Player window pops up, with play and quit…
How do I make a different one that only shows a logo and then after a while goes to fullscreen. (Like any program, photoshop, 3dmax…)
Thanks

you can disable the resolution change dialog in the player settings, so it just starts up in fullscreen…

if you are on unity free, you cant remove the powered by unity screen, but you are free to include your own splash screen after that

Ok Thanks a lot