My Samsung Galaxy tab screen has gone black. The home keys however are lighting up . help please How can I fix this?

[AC Question]

my samsung galaxy tab screen has gone black. The home keys however are lighting up . help please

so i was just playing a game that i downloaded a few hours earlier on google play and after exiting the game i just saw the screen got black. the screen has had a black light since.The homekeys are still showing though but i am not getting any function from them. please help