Touch sensing method, touch sensing circuit, and touch display device
US10042470B2 · kind B2 · utility
12Cited by
1References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2016 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Dec 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch sensing method, a touch sensing circuit, and a touch display device perform multifrequency touch driving by varying the frequencies of touch driving signals when sensing a touch or a touched position by outputting pulse-type touch driving by which one or more touch electrodes among a number of touch electrodes disposed on a display panel are driven sequentially. Undesired parasitic capacitance that would otherwise be caused by touch driving signals is prevented from occurring, and EMI influence is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.