My iPhone 6 is unresponsive in places. Will a replacement screen help?

Hi, I have an iPhone 6 that I purchased from new, I had the screen replaced over a year ago and it’s always worked fine however recently the device has started to play up (I didn’t drop it or anything). Some parts of the screen still work fine, but other parts don’t respond to any touch at all.

I was wondering if I took it to a local shop to replace the screen, would it help? I have tried everything software-wise, like restoring to factory default etc.

Any help would be greatly appreciated!