Microsoft develops 3D touch screen.

                   Software giant Microsoft has reportedly developed a 3D touch screen that shows images which can be felt and manipulated.

                   It includes an LCD flat panel screen with force sensors and a robotic arm that moves it back and forwards and by controlling how much resistance there is to a user's fingertip the device can simulate the shape and weight of objects shown on screen. Microsoft said that the device can have both medical and gaming uses.

                   Senior researcher Michael Pahud said that when the finger pushes on the touch screen and the senses merge with stereo vision, if convergence is done correctly and visuals are updated constantly so that they correspond to the finger's depth perception, it will be enough for the brain to accept the virtual world as real.

                   The report said that the company has created a demonstration using magnetic resonance imaging (MRI) scans of a brain to show how a medic could navigate through the different slices by pushing their finger against the display allowing them to draw notes and leave a ‘haptic detent’, or force-feedback marker - at certain layers to make it easier to find them again later on.

                   The ‘haptic detent’ can be extended to flag up potential problems is encountering an anomaly like a tumour, because one can change the response based on what they touch.

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