yeah. you voided the warranty. if you go to the apple store and keep your mouth shut and don't admit to it, they might replace this under warranty. whoever replaced your screen botched the repair and thats the person you should talk too.
if this happened to an ipad that never had its screen replaced, it would of been a factory defect and it would of been covered under warranty
the people at the genius bar will probably know its not a real screen or apple didn't replace it
since they do not replace screens at the store. they might not be able to check how legitimate your screen repair was , so you might get lucky and get a free swap out
there is no screen repair at apple. they charge you for a replacement if they feel it wasn't under warranty