Common electrode driving in integrated display arrays
US10732750B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2019 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Mar 27, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2300/0426
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This application is directed to a display device that integrates a two-dimensional array of display elements and a two-dimensional array of capacitive sense elements. A common electrode layer includes a two-dimensional array of common electrodes, which are used in both display elements and capacitive sense elements. One or more sensing control interconnects and a plurality of driving interconnects are arranged in parallel with each other and on top of a first row of common electrodes. Each sensing control interconnect is configured to provide a touch sensing control signal to enable/disable electrical access to common electrodes in the first row of common electrodes in a touch sensing mode. Each common electrode in the first row is electrically coupled to two or more respective driving interconnects in a display driving mode, while each of the plurality of driving interconnects is electrically coupled to a single respective common electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.