How Electrovibration Brings Haptic Feedback & Adds Texture to Touchscreens(Report)

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Texture recognition is an important mechanism used by humans to identify objects and their properties. Surface roughness acts as a crucial physical and perceptual parameter for textural perception. As a result, various studies related to how humans respond to textures have been focused on the investigation of roughness/surface perception.

With the advancement in software flexibility and intuitive handling, application of touch screen technology in everyday products has emerged. As a result, numerous hand-held devices based on touch screen technology have been developed. Most of the mobile phones make use of eccentric mass (pager) motor type actuators. In order to generate vibro-tactile feedback, piezoelectric actuator solutions and electromagnetic moving coils are used. The latter makes use of a tactile feedback which strongly influences the feedback quality of the actuator.

How Electrovibration Brings Haptic Feedback and Adds Texture to Touchscreens

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