How to fix black screen on my iPhone 5s after dismantling it?

So it still is a black screen will purchasing a new iPhone 5s LCD Screen and Digitizer from this site (iPhone 5s LCD and Digitizer) an answer to this? Do you know if it will have all the pieces needed to do the repair ? If so then I will purchase this and replace the it, need a new screen anyway this one is scratched.

If it's not the connection, look in there. Are all the sockets looking good? Both on the board, and on the part. Then yes, a new display is the answer. So even if you skimp, like me, and just get the part, you'll still have everything. You just need to swap the backplate camera and home button. But be careful with that home button. Damage it, lose Touch ID. I don't wanna scare, but be cautious. If you don't do this often, use a hair dryer, and gently with a medium space away, gently heat up the adhesive on the cable, gently pry up, then push the button, from the front, out the back. The little square sticker for the rubber gasket, not a big deal

I got my new display today and and replaced it on my new phone. I believe everything went well but my phone is still still just a black screen. It can still connect to iTunes though. I just don't get whats wrong.

Ok. So when it's on, and you can't see anything, and the display isnt fully closed. Disconnect the home cable safely. And see if there's light coming from the back of the display

I don't see any light from the display. I looked threw the area where the home button is and around the phone while I believed it was on. I presume this is bad..