My Acer Iconia B1-730 Tablet's Screen Isn't Working

Hey, I really need some help. So about a month or two ago, I accidentally dropped my tablet in the water. During this time, the power was on, and after a few seconds in the water it shut off. I took it out and dried it and even put it in rice for hours.

But the problem is that the screen doesn't work most of the time. I know it's working and the power is on, but the screen is just black (whenever I press the power button to turn it on, the screen just flickers). I've tried hard resetting, but I CAN'T BECAUSE THE SCREEN ISN'T WORKING.

Can someone pleasee help fix this problem?