Dropped iPhone on floor, White Screen/Digitizer not Working

Hi guys!

Okay, so recently I dropped my iPhone 3GS on the floor. For a couple of days the screen would turn on itself and white weird lines would show up. After a while, my screen completely turned white.

I did some googling and the DFU mode and Home + Lock button tricks does not work.

Did I damage the LCD + digitizer? Neither of these work...and the funny thing is the glass is not even shattered. The phone connects to iTunes with no problem.

Did I damage the LCD itself? But if I did...why is the digitizer no working? Did I damage the logic board?

Thanks!