Iphone screen flickering and green screen problem

As this is a user to user only forum, we can't give you a definitive answer, but I'd think there's a good chance that yes, you will need to replace the screen on your iPhone.

That is a hardware issue. The way to resolve the problem is to schedule an appointment at your Apple Store Genius for service options --> Genius Bar Reservation and Apple Support Options - Apple

Your post has absolutely nothing to do with the topic of this thread. You didn't even ask a question? If you need help with something, post your own question with as much detail as possible. Just looking at your screenshot, if something isn't working as expected, it could be because you are in Low Power Mode on your iPhone. Turn Low Power Mode off.

My screen no green line my face if issue please help me