Touch sensor controller, operating method of touch sensor controller, and touch screen driving circuit
US11656729B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2022 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Feb 1, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2354/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch sensor controller for driving a touch sensor that is stacked on a display panel and includes driving electrodes and receiving electrodes crossing the driving electrodes, the touch sensor controller including: a driving circuit configured to sequentially provide driving signals to the driving electrodes; a read-out circuit configured to, in response to the driving signals, generate touch data based on first sensing signals received from the receiving electrodes and generate display noise data based on a second sensing signal received from a first driving electrode to which a driving signal of the driving signals is not applied from among the driving electrodes; and a touch processor configured to determine whether a touch input has occurred on the touch sensor based on the touch data and the display noise data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.