Haptic feedback actuator, haptic feedback device and electronic device
US8558813B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2011 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Oct 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/101
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
There is provided a haptic feedback actuator according to an exemplary embodiment of the present invention, including: a vibrating plate provided on one surface of a haptic device to transfer vibrations; and an actuator provided on the haptic device and including a composite layer in which a sensing electrode providing a sensing voltage Va based on a touch pressure of the haptic device and a driving electrode providing a driving voltage Vd corresponding to the sensing voltage Va are formed and a piezoelectric material generating vibrations according to the driving voltage Vd by being combined with one surface of the composite layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.