Please plug in your iPad and while it is plugged in, please hold down the POWER and HOME button together until you see the Apple icon. After the restart, please try again.
How old is the iPad?
Did the iPad ever come back on properly or is it still frozen on the Apple logo?
Unfortunately, if that is the case then the iPad has hardware failure and will need to be repaired or replaced.
I would suggest that you take your iPad to a local Apple store so they can give you a free diagnosis to determine the best route and cost for the issue. Here is a store locator to find one close-by: http://www.apple.com/retail/
I have not heard back from you in a while -- If the issue is resolved, please rate our session as EXCELLENT, GOOD, or OK and press Submit so I am credited with helping you otherwise please reply back so we can continue with the issue.
My apologies -- Click here: https://locate.apple.com/nz/en/
Select Service and enter your address, city, or postcode.
If you can take a minute and use the rating system to rate our session as EXCELLENT, GOOD, or OK and press Submit so I am credited with helping you.