How does portable monitor work as one kind of multi touch monitor? Actually it works through a set of optical systems, mainly precision optical lens ultrastructure, to enlarged image on the panel. It projects the image on the retina and then presents to the eye of the beholder. In another words, you can take a magnifying glass to see the enlarged virtual object image.
What functions does portable monitor have? The most advantaged function is gaze tracking feature. Compared to the previous system, it greatly enhanced interactive monitors, which as was a major breakthrough. You can command an order by winking your eyes without using your hands. For example, you look when to the right, it means flip and with eyes down, the computer will automatically cut file.