Touch sensor, touch detection device and detection method, and touch control apparatus
US10705660B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 5, 2017 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Jun 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0448
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch sensor, a touch detection device and a detection method, and a touch control apparatus are provided. The touch sensor comprises a first electrode layer, a rigid insulating layer, a second electrode layer, a compressible layer, and a third electrode layer disposed successively The compressible layer may change the distance between the second electrode layer and the third electrode layer when subjected to a touch pressure. The second electrode layer and the third electrode layer may form a capacitor structure, and the capacitance value of the capacitor structure may vary with the distance between the second electrode layer and the third electrode layer. The pressure information of a user's touch operation can be calculated from the change of the capacitance value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.