A few days ago I've received the Lenovo U310 laptop I bought, and while I generally like it a lot, the screen is absolutely terrible. It's got a TN panel, OK, but it's probably one of the worst I've seen. Viewing angles are so terrible I find myself constantly adjusting the lid to avoid looking at a washed out/ too dark an image.
Is it possible to buy a different 13.3" LED panel (would love a 1080p IPS) for a laptop?
Can not. You can not change it. But you can ask your former supplier/seller for some other replacement if possible.