You more than likely have liquid between the screens. Disassemble and use a glass cleaner without ammonia in it. More than likely the diffuser panel got wet. Make note on the order and side the light fusion screens come out and reinstall exactly the same. Wish you luck and be very careful you do not damage the main panel or hence the set will be junk.

Screen was reassembled after led replacement in wrong order or reversed. Disassemble and reposition screens in proper order.