I think the LCD don't have any cracks.
However, I am not sure if the internal of the LCD have cracks. >.<

TS, make sure your LCD don't have any scratches/cracks/slashes. Then, you can claim warranty. >.<
Please do not throw anything to your PC(any parts) again. It's not good. LOL.

My neighbor's Modem got spoiled previously due to his father(angry and throw it on the floor).
After that, his dad buy a new 1. Waste money, just PP and hide/grab the Modem can already, why need throw on the floor? LOL.

Another friend more powerful, he's taekwondo learner(black belt).
When his PC behave strangely or when lag or something, he will kick the PC(Chassis).
Now, his PC's dead. Again. MONEY.