But I have a pair of quite old laptops which the displays are performing just like when new. One model is a washed out display that is uneven in brightness (wavy and spotty) but that was the technology you got for the money those years. I have a stellar display on a Compaq Armada from the same year but that machine was almost double the price then. But the display is crisp and you could use it for many hours.
Hope this helps and I hope your warranty pays off.