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A Tactile Display with Touch Sensing using a High-Density Microfluidic Chip
Alexander Russomanno, Hrishikesh Rao, Thanasarn Tantivirun, Sile O'Modhrain, and R. Brent Gillespie
(University of Michigan, USA)
Demo 25
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Abstract: We present a touch-sensitive tactile display based on an array of bubble-like actuators integrated with a microfluidic chip. Each bubble is addressed by a corresponding fluidic memory circuit - the fluidic equivalent of an electronic memory circuit – that stores binary information (1s and 0s) as high and low pressures. The bubbles and memory circuits are fabricated together in a thin microfluidic chip using large-scale integration and low-cost silicone materials. The fluidic memory circuits are arranged within the chip to realize an XY-addressable static memory device. A minimal number of electronic valves can control an exponentially larger number of memory circuits and corresponding bubbles. The resulting thin silicone chip is arranged on top of a touchscreen to enable co-located input and output functionality.


Time stamp: 2019-03-24T01:29:53+01:00