A smart phone peripheral with bi-manual skin stretch haptic feedback and user input

We have developed and calibrated a bi-manual smartphone peripheral for rendering skin stretch feedback to a user's thumbs. The device's compact skin stretch displays are capable of providing repeatable haptic cues to a variety of users. Results from single- and dual-handed direction identification tests for judging 16 equally distributed direction cues show significantly better performance when the user is simultaneously provided with a direction cue on both thumbs.

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