Screen of MacBook Pro (Retina, 15-inch, Late 2013) display has a completely black vertical bar of about 1", how much to repair this/how can i fix it?

The screen of my macbook has a vertical black line where i assume the monitor has gone dead. I tried taking a screenshot, in the screenshot there is no black bar and it shows the full image, so it must be a monitor issue. The issue started after the computer fell in a weird way, could it be an issue with the hinge? The screen is not cracked at all so will i have to replace the display?? Does anyone have a cost estimate? Thank you.