With Dead Pixels Fix/Repair tool you can give a try to fix dead pixels on your device's display AMOLED, IPS and LCD
This App will guide you to some easy steps trying to fix any dead pixels using different primary colors at a very high rate.

By sending these colors to the dead pixel, it can come back to work with no need to change the whole display, just give it a try before proceeding to hardware fix.

Please note that this fixing method does not work on all display technologies, just give it a try, else you need to change your display.