My screen isn't displaying properly, can it be fixed?

[LoveableNancy]

My phone appears to be working completely, except for the display. I'm receiving texts, and the touch screen appears to be working (it makes the sound like I unlocked the screen) but the display is just flickering purple and stuff.

Edit - now it's an almost solid purple, and occasionally will flicker a grainy version of what the screen is SUPPOSED to look like & even when it's all purple, there are varying light/dark areas that match up with the normal screen.

What I want to know is, will replacing the screen help or are those screen replacement kits just for broken glass.

My phone got wet, water spilled on it & I wiped it off quickly & took the battery out, I didn't see any water and couldn't get any out, I set it on the dresser with a fan blowing on it all day, now this is what I have.

EDIT - This link appears to be about a similar problem
www[dot]ifixit.com/Answers/View/146686/Why+is+my+screen+Purple-Pink

While I'm waiting (hoping) for help, I've been browsing parts... how do I know the exact phone I have, for example: Samsung Galaxy S3 i9300 I747 I999
I don't know what that long chain of numbers after S3 signifies or how to know if they match up with my phone.

 

[anon(5600632)]

Water damage is the worst possible thing for electronics. I would buy a used, unlocked phone before I'd invest in a do-it-myself repair.