From the looks of the issue and your description I’m pretty convinced it’s a Lcd panel issue, probably the delicate cable between screen and screen board got slightly damaged. You can of course replace just the lcd by getting some insight from youtube replacement videos, there are quite a few available. However be ready for a sloppy result too, it’s quite a difficult job and first times is almost inevitable to damage backlight sheets and trap dust in it, since I suppose you won’t be working in a white room. To be sure the issue is the lid you’ll have to pay a pro who has parts available or get a known good part and try it yourself, nobody can say for sure what the problem is from a video or a picture.