Just wondering if anybody has seen an issue like this before. Display will intermittently - usually it's fine - show lowered contrast (green-grey haze) with bright horizontal lines. Doesn't affect touch or use of the phone. I think I've rules out things like interference from the wireless modules
I've been experiencing this for about a week, it dis shortly follow a software update to one ui 3.1. I'm hoping the display connector isn't going, because that means the phone is done, really.
If a Reset doesn't solve it, I recommend taking it to a Service Centre for an engineer inspection. Take a look at this link to find the closest in your area.