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US 10,296,094 B2Granted
Touch sensitive device
AssigneeNVF Tech Ltd
InventorsMartin Colloms, Timothy Christopher Johnson Whitwell
Life of this patent
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Abstract
A method of making a touch-sensitive data entry screen of the kind arranged to provide haptic response to a user via at least one electromechanical exciter coupled to the screen, comprising analyzing the mechanical and electromechanical coupled system represented by the data entry screen and the at least one exciter, and selecting values of parameters of the coupled system to provide a required displacement and acceleration of the screen at low frequency in response to human touch.
Claims16
An apparatus, comprising:
- a frame;
- a touch panel mounted in the frame with a rear surface facing a surface of the frame;
- a suspension mechanically coupled to the touch panel, the suspension separating the rear surface of the touch panel from the surface of the frame facing the rear surface, the touch panel and suspension forming a coupled system having a resonant frequency at a frequency suitable for supplying a haptic response to a user;
- a sensor coupled to the touchscreen to detect a user's touch of the touchscreen during use of the apparatus;
- and
- at least one electromechanical exciter mechanically coupled to the rear surface of the touch panel,
- wherein an internal resonance of the electromechanical exciter substantially coincides with the resonant frequency of the coupled system.
4 more elements
Dependencies are inferred from the claim text.