there is no display on screen
no disply on screen
iPad, iOS 8
no disply on screen
iPad, iOS 8
If your iPad's screen is not showing anything, and assuming that the battery isn't empty (it can take about 15 minutes of charging before it will respond), then have you tried a soft-reset to see if that gets it to boot up ? Press and hold both the sleep and home buttons for about 10 to 15 seconds, after which the Apple logo should appear - you won't lose any content, it's the iPad equivalent of a reboot.
there is no display on screen