I did consider replacing the screen, but the only source I could find was China with 60 day delivery by boat, and I decided to find a workaround till the screen arrived... The screens now arrived, but the workaround is so good I can't be bothered to fit it.
It’d be wonderful if we were in a world where working things like this out was worthwhile. I shudder to think how many perfectly working monitors are dumped each year, let alone ones with problems like this.