Pixel circuit, driving method thereof, electroluminescent panel and display device
US11217159B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 7, 2017 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Apr 26, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel circuit, a method thereof, an electroluminescent panel, and a display device are provided. The pixel circuit includes a first switch sub-circuit, a second switch sub-circuit, a luminescent sub-circuit, and a dual-drive sub-circuit. Through improving the pixel circuit, a first driving terminal of the dual-drive sub-circuit connects to a first node, a second driving terminal of the dual-drive sub-circuit connects to the second node, when a first and a second gate line signal terminal input the gate line scanning signal alternatively, the first and the second switch sub-circuit are working alternatively, cause the first and the second driving terminal are working alternatively, thus to drive the luminescent sub-circuit to emit light. Therefore, the two driving terminals work alternatively to avoid the voltage instability due to threshold voltage shift caused by one driving terminal of the dual-drive sub-circuit works for a long time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.