LG G2 screen isn't working in partial areas

So the other day I dropped my LG G2 from about 5 feet high and it smacked the ground. The screen was not damaged and everything looked fine with the phone, but when I started using it that wasn't the case. About 75% of my screen works when I touch it but a certain section of it does not. It isn't cracked or anything and you can see everything on screen, only the touch screen will not work in a certain section on my phone. Please help!