Exam 220-1101 topic 1 question 254 discussion

D is the correct answer

Just goggle "water damage dark spot phone"

LCDs have a slightly different construction. They are made from tubes that hold the crystals. That is why your LCD is never totally black. It has a mild illumination that you can see in a dark room. These tubes can break and lose the liquid, so they can’t illuminate. That leads to dark spots that you can see even at night. And they are signs that you need to hurry up to fix the black spot on the LCD phone screen. This liquid will continue to spill and contaminate nearby pixels, and this spot will get bigger with time.

If a smartphone has a large dark area on the screen with no visible damage indicating a cracked screen, the most likely cause is: Liquid damage Liquid damage can lead to various display issues, including dark spots on the screen. Even a small amount of liquid exposure can affect the phone's internal components, including the display. It can cause the liquid to seep into the layers of the screen or damage the connections, resulting in dark areas or spots on the display. The other options: Digitizer damage: A damaged digitizer typically affects the touch functionality of the screen and wouldn't directly cause a dark area on the display.

damage is most likely digitizer. if liquid dmg, there'd be some discoloration mentioned; liquid damage still possible but more than likely digitizer.