Pixel circuit of organic light emitting device and organic light emitting display panel
US11232746B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jun 26, 2019 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Nov 26, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel circuit of an organic light emitting device and an organic light emitting display panel are disclosed. Two steps of a pixel circuit duty cycle can be realized by completing initialization in synchronization during the program period at same time, maintaining a gate voltage of a driving transistor, and compensating for a threshold voltage drift in the driving transistor. Thereby improving response speed of the organic light emitting device, and increasing refresh rate of the display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.