Touch sensing device and touch sensing method
US12223142B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 2023 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Nov 15, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In an aspect of the present disclosure, a touch sensing device is provided. The touch sensing device includes: a first circuit configured to supply a driving signal to a touch electrode of a panel; a second circuit configured to sense a change in capacitance of the touch electrode caused by a user touch; and a third circuit configured to: calculate a touch coordinate based on the sensed capacitance change; determine a touch area based on the touch coordinate; and determine the user touch as either a normal touch or a grip touch based on a touch ratio between touch nodes placed on each of a plurality of lines of the panel and the touch area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.