Microsoft Research center and Human Computer Interaction Institute developed a Prototype system uses computer and Human skin called 'Skinput'. Our skin may acts as a screen / input device.
This technology doesn't use any electrodes to pass through our body. It has an pico projector embed-ed in a arm band to project a beam on our hand or forearm, an acoustic detector embed-ed in the arm-band detects the taps and works with the function behind it.
You can check out the more details with pdf link here.
Or you can check out the following youtube video.
From: Physorg and Youtube
This technology doesn't use any electrodes to pass through our body. It has an pico projector embed-ed in a arm band to project a beam on our hand or forearm, an acoustic detector embed-ed in the arm-band detects the taps and works with the function behind it.
You can check out the more details with pdf link here.
Or you can check out the following youtube video.
From: Physorg and Youtube