Organic light emitting pixel compensation circuit, organic light emitting display panel, and method for driving the panel
US10325555B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 29, 2017 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Jul 13, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An organic light emitting pixel compensation circuit, an organic light emitting display panel, and a driving method are provided. The organic light emitting pixel compensation circuit includes an external compensation module, which has a data line, a reference voltage line, a reset control line, a first detection control line, a second detection control line, a first input/output terminal, a second input/output terminal, a reset unit, a threshold voltage detection unit, a deterioration voltage detection unit, a data processing unit, and an adder unit. The deterioration compensation for a light emitting element is achieved by detecting and processing an anode voltage at the second input/output terminal to obtain a compensated voltage, and feeding the compensated data voltage back to a gate of a driving transistor via the data line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.