Problems with screen.

I am unsure what it happening to my laptop, a Dell Insipiron 13 7359 2-in-1. It appears that a frozen image of windows persists after restarting due to the corners being black. This frozen windows image stays for a bit, then slowly goes away. While it slowly goes away, it glitches with the actual screen that's not frozen, and this persists for awhile until the screen is normal. 

Here is a link to my reddit post where I asked for help on /r/Dell 

https://www.reddit.com/r/Dell/comments/7ik6y6/help_screen_for_dell_inspiron_13_7000_series_is/