In most case, it's not your display. It is probably due to torn flex cable that brings data from the main board to LCD. But unfortunately that is no user replaceable and and not easily fixable. By that, I mean you need to hand over the phone to it's manufacturer/vendor if you still has warranty left or hand it over to a repair shop
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In most case, it's not your display. It is probably due to torn flex cable that brings data from the main board to LCD. But unfortunately that is no user replaceable and and not easily fixable. By that, I mean you need to hand over the phone to it's manufacturer/vendor if you still has warranty left or hand it over to a repair shop