Pixel and organic light emitting display device having the same
US11436984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2021 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | May 3, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/123
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel includes an organic light emitting diode including an anode electrode and a cathode electrode; a driving transistor including an input electrode connected to a first node (FN), a control electrode connected to a second node, and an output electrode connected to a third node; a switching transistor to apply a data signal to the FN in response to a scan signal in a second period; a first initialization transistor to apply a first initialization voltage to the second node in response to an initialization control signal in a first period (FP); a second initialization transistor to apply a second initialization voltage having a voltage level different from the first initialization voltage to the anode electrode in response to the initialization control signal in the FP; and an on-bias transistor to apply a first driving voltage to the FN in response to an on-bias control signal in the FP.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.