Microsoft developed a touch screen on the joint surface is convex.

In November last. Microsoft filed a patent. light-induced shape-memory polymer display screen with the U.S. Patent Office. The display of this type can trace the pattern on the embossed surface, such as button virtual keyboard on the fingers rubbed at the virtual keyboard look and feel. Print quite true.

The idea is to display the layers that geography has changed. (topography-changing layer), which produces the polymer's surface to adjust the ultra violet light signal incident.

Microsoft originally intended to be used with manufactured products, Microsoft Surface, but theoretically. This technology can be used with mobile devices. It means that in future products, smart phones do not need a mobile keypad. In response to users who want a real keyboard layout again.

Source : Blognone, 88Gadget.