There's a flaw in the questioning. Time of ownership probably isn't as important to display issues as the amount of time the display's been used. For example, someone who's a heavy gamer that plays 4+ hours of games each day would tax both the SoC and the display more than a productivity user. Same thing for a heavy video user. Having the display go off and on doing stuff like e-mail, social, and web browsing for four hours a day wouldn't apply as much stress (or heat) as constant four hour sessions of gaming and video. The parts in electronic devices have defined mean times between failure. And that time is calculated by the amount the part is in use (and how). I'm a productivity user so my screen on time from March is probably less than a gamer that bought his device in September.
I will try so send it to be repaired using the warranty even tho I have unlocked the bootloader.
Thank you all for answering.