Touch panel apparatus and touch panel control method
US9690422B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2015 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Jan 28, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/014
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is a touch panel apparatus capable of easily setting a touch sense produced by oscillatory waves of plural piezoelectric elements according to a user's taste. To this end, a touch sense pattern table (51) stores a plurality of touch sense pattern values made up of plural parameter values of a voltage table (52), plural parameter values of a frequency table (53), and plural parameter values of a phase difference table (54). A vibration diving control part (18) applies a driving signal to the piezoelectric elements of first to third groups to vibrate the touch panel (12) based on the parameter values acquired from the voltage table (52), the parameter values acquired from the frequency table (53), and the parameter values acquired from the phase difference table (54), correspondingly to the plurality of the touch sense patterns stored in the touch sense pattern table 51.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.