Input device with integrated deformable electrode structure for force sensing
US9748952B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2011 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Feb 9, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/960775
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Devices and methods are provided that facilitate improved input device performance. The devices and methods utilize a first electrode and a second electrode disposed on a first substrate and a deformable electrode structure. The deformable electrode structure overlaps the first electrode and the second electrode to define a variable capacitance between the first electrode and the second electrode that changes with the deformation of the deformable electrode structure. The deformable electrode structure comprises a spacing component configured to provide spacing between the deformable electrode structure and the first electrode and the second electrode. Finally, a transmission component is configured such that biasing the transmission component causes the deformable electrode structure to deform and change the variable capacitance. A measurement of the variable capacitance can be used to determine force information regarding the force biasing the transmission component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.