Samsung galaxy s4 water damage screen dark?

A

AC Question

I dropped my galaxy s4 in water and it didn't turn on after, so i put the phone in rice for about 2 days and it worked fine but after about a day the screen started to get really dark and the phone started to overheat. I tried moving the brightness up, but when I do that the screen goes to like some greenish color and it's even worse to see the screen and i was wondering if anybody knows what it is that's causing this to happen, if it's something that burned inside the phone or if something broke? Thanks.