Display panel and display device
US10417967B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2018 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Apr 1, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D86/481
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure discloses a display panel and a display device. The display panel includes a plurality of pixel circuits, and each of the pixel circuit includes an initialization component, a data writing component, a light emitting control component, a voltage storage component, a driving transistor, a first voltage maintenance component, a switching control component, an external compensation component and a light-emitting diode. The driving transistor is a dual-gate transistor, and a second gate of the dual-gate transistor is electrically connected to the external compensation component through the switching control component. The external compensation component is under the control of the switching control component to firstly collect the voltage at a third node and then provide a compensation voltage to a second node to adjust the threshold voltage of the dual-gate transistor so that the threshold voltage of the dual-gate transistor is more approximate to a standard threshold voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.