Apparatus for driving of touch panel
US9696845B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2015 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | May 15, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04106
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments relate to a touch panel operable in a first haptic mode and a second haptic mode. The touch panel includes first electrodes and second electrodes intersecting the first electrodes. The touch panel further includes an elastic dielectric member disposed between the first electrodes and the second electrodes to separate the first electrodes and the second electrodes. The first electrodes are applied with a first voltage during the first haptic mode. The second electrodes are applied with a reference voltage in the first haptic mode. A subset of the second electrodes is applied with a second voltage to generate electrostatic force between the subset of the second electrodes and a user's finger in the second haptic mode. The elastic dielectric member vibrates in response to the first voltage applied to the first electrodes in the first haptic mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.