Places that pay for broken displays?

The biggest refurbishers are chinese, but I’ve no idea what their purchase channels are and if prices they are ready to pay may be interesting for you. I’d have a close look at eBay listings to identify bigger sellers of refurbished screens closer to you and contact them to offer your stock. I don’t think there’s any interest in screens with broken backlight though, to big of a headache to replace that I’d believe and one would have to source it from another screen anyways.