Touch panel and coordinate measuring system having the same
US10379694B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2015 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Oct 30, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2300/0426
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch panel is provided. The touch panel includes a channel electrode unit configured to include a plurality of first electrodes disposed in a first direction and a plurality of second electrodes disposed in a second direction intersecting with the first direction, and a controlling unit configured to apply a driving signal to the electrodes in the channel electrode unit in a unit of a plurality of electrodes, transmit the driving signal to a resonance circuit of a stylus pen approaching the touch panel through a capacitive coupling, and receive response signals generated from the resonance circuit of the stylus pen from each of the plurality of electrodes to determine a location of the stylus pen including the resonance circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.