Touch display device, touch-driving circuit, and touch-sensing method
US10761633B2 · kind B2 · utility
2Cited by
4References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2018 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Dec 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch display device, a touch driving circuit, and a touch-sensing method are disclosed in which control operation timing at which a charge control circuit connected to an input terminal of a pre-amplifier is controlled in consideration of a difference in a location or time constant for each touch electrode. Accordingly, unnecessary variation in a signal-to-noise ratio for each touch electrode can be reduced, and thus touch sensitivity can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.