Electronic skin (e-skin), reports Chuan Wang and team at UC Berkeley, presents a network of mechanically flexible sensors that can wrap around and conform to irregular surfaces and spatially map and quantify various stimuli.
It spatially maps the applied pressure and gives an instantaneous visual response through a built-in active-matrix organic light-emitting diode display with red, green and blue pixels.
In this system, organic light-emitting diodes (OLEDs) are turned on locally where the surface is touched, and the intensity of the emitted light quantifies the magnitude of the applied pressure.