How to decide whether to replace LCD screen digitizer or just LCD
My phone (Xiaomi Mi3) fell down and now the touch is not working. I can see the images and display is fine. There is no crack on the front glass panel , excpet for a small crack at the top left corner. But I can see a crack in the inside screen. So could you please tell me as to whether I will have to replace the entire touchscreen digitizer assembly or just the LCD screen ? And could you please explain the difference between the two ?