Pixel circuit, method for driving the same, display panel and display device
US10726782B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2019 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Apr 22, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0233
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel circuit, a method for driving the same, a display panel and a display device are provided. The pixel circuit includes a driver transistor, a data writing sub-circuit, an initializing sub-circuit, a voltage prewriting sub-circuit, a threshold compensating sub-circuit, a first light-emission control sub-circuit, a second light-emission control sub-circuit, a capacitor, and a light-emitting element. The voltage prewriting sub-circuit pre-stores voltage of a light-emission supply voltage terminal into the capacitor before the light-emitting element emits light, the magnitude of light-emission current is dependent upon the voltage of the light-emission supply voltage terminal, and independent of the voltage of the first voltage source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.