Input touch device that detects the amount of negative capacitance change due to coupling between an object and a predetermined driving electrode
US12079427B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2020 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Feb 23, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K71/166
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An input device including a touch sensor, which is capable of accurately detecting whether a touch input to a touch surface is input by an object or/and a touch position even in a situation where the touch input device is in a floating state. The touch input device includes a touch surface, including: a touch sensor which is disposed under the touch surface and includes a plurality of driving electrodes, a plurality of receiving electrodes, and a plurality of dummy receiving electrodes; and a touch detection unit configured to detect a touch position of an object input to the touch surface based on a detection signal output from the plurality of receiving electrodes of the touch sensor, in which the touch detection unit detects the touch position of the object input to the touch surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.