Chosen Solution
I dropped my cracked iPhone 6 on the ground today some of the screen popped out and I see colored lines when I turn my phone on and then they disappear and I’m afraid to shut off my phone for the night will it not turn on in the morning?
Your phone has a broken LCD, unfortunately. RIP. The good news is that it is a simple/straightforward repair. Just buy a new LCD/Digitizer replacement and fix it on up. No sweat! You can turn it off by pressing/holding the Power + Home Button simultaneously for about ten seconds until it goes black. Think of it like holding the power button on a computer. Best of luck!