Pixel circuit, method, and AMOLED display with optical touch sensing
US11341906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2018 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Dec 31, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/121
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a pixel circuit and a drive method thereof, and a touch display apparatus. The pixel circuit includes a pixel driving circuit, an optical sensing circuit, and a light-emitting element. The pixel driving circuit is configured to drive the light-emitting element to emit light, based on a first control signal from a first control line, a second control signal from a second control line, a scanning signal from a scanning line, and a data signal from a data line. The optical sensing circuit is configured to sense an optical signal, convert the sensed optical signal into an electric signal, and output the electric signal via a reading line based on the first control signal, the second control signal, the scanning signal, and the data signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.