Passive matrix organic light emitting display panels having touch sensors using anode and cathode electrodes
US10318085B2 · kind B2 · utility
2Cited by
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Key dates
| Filing date | Oct 26, 2017 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Oct 26, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04112
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A PMOLED touch-sensing display panel using anodes as in-cell touch sensors is provided. The anodes and the cathodes are respectively and correspondingly configured into two or more electrically isolated areas of cathodes and anodes such that the heavy parasitic capacitance due to close proximity of the anode layer and the cathode layer is eliminated, hence providing a full dynamic range in sensing the changes in capacitance due to finger touches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.