Samsung NP300V5A-A0AUS Screen Replacement

Hello Everyone,
I'm new to the forum, but not computers or electronics.   Hoping someone can help me with a problem that has me perplexed.  

I'm having a problem with a laptop screen repair. Original screen was cracked, but otherwise the laptop would function correctly. I could use the HDMI or VGA out to determine that the laptop booted correctly, the video was correct and the keyboard functioned.
So I purchase a replacement screen with the exact matching P/N from eBay. Part arrives and I easily replace the cracked screen with the new replacement. The laptop boots up and the new screen displays everything properly.

Here's the weird part... The new screen displays correctly, but causes the keyboard to malfunction. It's as if the key mapping is off. For example, if I press the '1' key, cap-locks is activated, the letter 'q' gives me a number. Every key I press displays something other than what it is supposed to.

So I put the original broken screen back in and the keyboard functions correctly. Try the new replacement screen and the keyboard doesn't work. Have checked and double-checked the single connection to the screen. Even let other tech guys at work take a shot at it. Always the same result.

Exchanged the new screen for another one and there is no change.

Any ideas??? I could really use the help.  

Thanks!