Touch controller, touch sensing device including the touch controller, operating method of touch controller
US11656715B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2021 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Aug 9, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0247
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch sensing device may include a touch sensor array including at least one beacon driving section and at least one compensation section, the at least one beacon driving section including a plurality of first touch electrodes, and the at least one compensation section including a plurality of second touch electrodes; and a touch controller connected to the touch sensor array through at least one first driving channel and at least one second driving channel, the touch controller is configured to, during a first uplink period for communication with an active pen, provide at least one beacon signal to the at least one first driving channel, and provide at least one compensation signal to the at least one second driving channel, the at least one compensation signal being an inverse of the at least one beacon signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.