You have to search for this separately on the internet. There are also different versions. A couple where they are to be screwed on and on the glass. Since I should proceed according to your comment, I would say glass attachment.
-Remove the glass
-Take the glass piece where the screen should be
-Fix the screen with glue (I think).
-Connect screen cable to MB
-Attach the glass to the screen
-Configure
And you are done. But a Youtube video is more accurate ;)

How and where do you want to "put in" a display? What exactly is the goal?