The Magic Note Pad doesn't use E Ink technology, but is rather a modified 10.9-inch LCD panel in a similar vein to TCL's NXTPAPER technology. XPPen is calling its display solution 3-in1 X-Paper.

If the paper doesn't change color, the investigators can then move to the conventional method of treating non-thermal paper for fingerprints. If it does react to the marker, another of Dr Bond's ...