Currently Being ModeratedFeb 20, 2013 3:37 AM (in response to pruitt5)
Try a reset of the device by pressing and holding the home and power buttons for about 15-20 seconds. The white Apple logo should appear.
It this does not get the display working make him buy you a new iPhone.
Apple does not repair devices they replace them.
If the device cannot be accessed due to a passcode and the screen is non-responsive there is nothing that can be done.