So Weird PLZ HELP!

Ok So last night my PSPs batterywas dead so I decided to charge it to bring it back up to normal speed...but today when I woke up I grabed it off of the charger and noticed something weird, The PSP was turned on. But this wasent the problem When I tried to go play Ratchet And Clank:Size Matters I noticed the screen wouldent come on I have tried everything from Taking out the battery to trying another mem stick, From tring to access the recovery menu(Which I also cant do) to Tring to remod it but the screen will not come on! so am I bricked or what can I do or do i need a new PSP?

I have no clue. I would try to put a Pandora on it and reflash the firmware.