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After obtaining a large amount of broken LCD displays for iPads and iPhones, I have stripped them down, and have removed the LED back light arrays from the LCD displays. Does anyone have any idea how the iPhones or iPads power these LED array, as I can only manage to light up a single LED at a time, by giving power to that one specifically. Any help would be great as I would like to power the whole array in some mini projects, and I’m just having no luck at all.

You need to ask ten different people and , sum of the group.you can come up with the best answer.