How do I know if its my LCD panel, monitor cable or display inverter that's malfunctioning?AN515-52

cheddarbobshandgun

My Acer Nitro AN515-52 recently ran into an issue where I get flickering green and pink lines on the bottom of my screen.
I connected my laptop to a TV using an HDMI and the display worked fine there. I'm ready to replace the required part but how do I identify what is malfunctioning?
The problem seems to be worse when I change the angle of the screen
I've attached videos of the issue in these links
https://drive.google.com/file/d/1gyUuXToD8ll80wbkbIiqtcZvdAAQCHeW/view?usp=sharing
https://drive.google.com/file/d/1gYP5ZVFXFCF1fA8Kr_7kRwTSNrV3pmy1/view?usp=sharing

Thread was edited to add model name to the title

AnhEZ28

If the screen went worse when you try to change the angle, it is likely that the LCD is broken.