Which Screen Part You Need for a Cracked iPhone 3G/3GS
How To Tell if Your Cracked iPhone 3G/3GS Needs a Digitizer, LCD or Complete Screen Replaced
You cracked your screen on your iPhone 3G/3GS and now you want to fix it. Apple charges too much for a repair or replacement so you look into some self repair options. How do you know what part you need? Here are some easy steps to figure out which part you need to fix your cracked screen on your iPhone 3G/3GS.
(left image) Touch Panel, Digitizer or Glasstop all these terms refer to the same part: If the top touch panel or aka glass top is cracked or broken but the image under it is fine then you only need the Touch Panel. If you can see the icons, words, text etc with no issue other than the surface crack then you just need the touch panel repaired.
(middle image) LCD Only: If the image under the glass is broken and the touch panel is NOT cracked or damaged in any way then you only need the LCD. Also if the top touch panel is not cracked and the LCD under the touch panel is all white. Most of the time this will require a replacement LCD to fix this issue. The term LCD stands for Liquid Crystal Display.
(right image) Complete Screen with Touch Panel and LCD: If the top touch panel is broken and the lcd image is either black liquid or cracked you need a complete screen. The complete screen includes the following parts: Touchpanel, LCD, Home Button, Ear Piece and Frame. The parts are all assembled together into one complete screen.