Chosen Solution
As you can see, these is a bright line… It happened yesterday, when I took it to school in my bag, but I always putted in between books, so I think they may did a bit pressure on iPad or something like that, but books are soft, so I don’t know. I didn’t care about it too much, I’ve found recently that is getting longer and longer. I tried to take of the touch screen, it’s on LCD, not touch screen, I also tried to wipe it off the LCD, but it didnt work . How can I fix it?
It could be a defective LCD or perhaps some pressure marks. Was the device opened or repaired before or has it been damaged by drops or something else.If it keeps growing and becomes bothersome, then you will have to replace the LCD. You can follow this guide.