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  1. Is it really ghosting or just long persistence?
    The green LCD seems to have the same issue.
    The term “ghosting” generally refers to a matrix driven circuit where the wrong row & column appear because of the circuit, and it happens with LED and LCD displays. The term “persistence” refers to an old image hanging around for a while until the display recovers from the previous voltage at a certain row & column.
    The only way to distinguish the two is to hold a constant display image, rather than the frequently changing one in the videos. If the problem is ghosting, then it won’t disappear even after a long time. If the problem is persistence, then the unwanted image will only appear when the display is changed, and then quickly disappear.

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