If its still under warranty then nothing can be done. If try to disassemble then could void your warranty. Another choice is to send for RMA, and let them do the work instead...

RMA stands for "Return Merchandise Authorisation", in other words send for warranty...

Once familiar with dis-assembling LCD/LED monitors, it can be quite easy although not for the faint hearted (speaking from experience here). There may be warranty seals on the sides and if these are broken then warranty may be void.

That's good news.

You can say its looks like a "manufacturing defect" if questioned.