The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 26, 2023
Filed:
Feb. 05, 2019
Tdk Electronics Ag, Munich, DE;
Daniel Neuwirth, Vilshofen, DE;
Roman Puchleitner, St. Stefan, AT;
Aditya Rajapurkar, Graz, AT;
Andreas Pentscher-Stani, Leibnitz, AT;
TDK Electronics AG, Munich, DE;
Abstract
A device and a method for producing haptic feedback are disclosed. In an embodiment a device includes at least one piezoelectric actuator having a plurality of piezoelectric layers and internal electrodes arranged therebetween, a first amplification element and a second amplification element, wherein the piezoelectric actuator is arranged between the amplification elements, wherein the piezoelectric actuator is configured to change its extension in a first direction upon application of an electrical voltage, and wherein the amplification elements are configured to deform as a result of the change in the extension of the piezoelectric actuator such that a subregion of a respective amplification element is moved relative to the piezoelectric actuator in a second direction, which is perpendicular to the first direction and a driver circuit configured to apply the electrical voltage to the piezoelectric actuator such that the amplification elements are deformed thereby producing the haptic feedback against an object pressing on the device, the haptic feedback imitating a jump in force.