Touch circuit, touch sensing device, and touch sensing method
US10496230B2 · kind B2 · utility
0Cited by
45References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2017 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Dec 16, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0412
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a touch circuit, a touch sensing device, and a touch sensing method. According to the present disclosure, it is possible to obtain an accurate touch sensing result (the presence or absence of a touch and/or a touch position) by compensating for the unintentional change in the quantity of the charge corresponding to a signal obtained by driving a touch screen panel, so as to obtain sensing data in which the influence of the parasitic capacitance generated inside or outside the touch screen panel is reduced or eliminated, thereby improving capacitance-based touch sensing performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.