My inspiron 4150 laptop's screen is cracked

Hello. Today I open my laptop inspiron 4150 and I found out that the screen is cracked. I would like to know what I can do to fix it and if I need to buy a new or used screen. I would like to let you know that even the screen is crack the computer could start up and I can see the desktop image for the left side of the screen that is not cracked. I would appreciate your help. thanks.