crwdns2934241:0crwdne2934241:0 S W

crwdns2934249:0crwdne2934249:0:

If you bought it from OnePlus, and you've only had it for a few days, I would contact them for an exchange.  From the pic you posted, either the logic board has gone bad, or the LCD has.  Either I wouldn't try fixing this your self if its still under warranty.

crwdns2915684:0crwdne2915684:0:

open