Touch sensitive display device with modulated ground voltage, driving circuit, control circuit, and operating method of the touch sensitive display device
US9760213B2 · kind B2 · utility
2Cited by
1References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2015 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Dec 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04112
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Exemplary embodiments of the present invention relate to a touch technology, and more specifically, to a signal control circuit, a power control circuit, a drive circuit, a timing controller, a touch system, and a touch sensitive display device and a driving method thereof that can simply swing various voltages in a display device for a touch mode period by using a modulated ground voltage obtained by swinging a ground voltage, thereby effectively providing touch driving and preventing unnecessary parasitic capacitance from being generated not only in an active area but also in all other areas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.