When I bought my laptop there was an dead pixel It wasn't bothered me but recently I noticed that there one bigger and smaller one dead pixels near it.
I checked some display warranty stuff but still I am not sure is it legit defect of display.
Warranties are not equal around the world, even for same product. Check with Lenovo' customer support, they will let you know whether this is covered. And plan whether you can survive a week / month without a laptop.