Nt61219hc6021a Cof Datasheet Exclusive ((top))
If your panel uses "Cholesteric" or "IPS Black" technology from LG, there is a 80% chance the source driver is this variant.
Because this IC is a high-voltage driver, an incorrect power-on sequence (e.g., applying drive power before logic power) can cause immediate "latch-up" and permanent damage nt61219hc6021a cof datasheet exclusive