Galaxy Note 1 black screen problem

Hello , so i got very annoying problem :mad: ,when i boot my phone its works like always ,until I lock it , after that if I try to unlock it ,nothing happens only black screen , but i can hear all the notifications , sounds, i can open apps. So the problem is screen doesn't show anything, and I need to reboot my phone . Does anybody knows how to fix this problem? :fingers-crossed:

P.S . Sorry for my english :laugh: