Pixel circuit, display device, and method of driving display device
US12307977B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2022 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Apr 28, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/0435
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Regarding a display device that uses display elements driven by current, occurrence of flicker upon pause driving is suppressed while an increase in power consumption is suppressed. In a period, during which supply of a drive current to an organic EL element is stopped, in a refresh frame period (RF) included in a driving period, before a writing period (14) during which a data voltage is provided to the control terminal of the drive transistor, a reset circuit provided in a pixel circuit provides an off-voltage that brings a drive transistor into off state to a control terminal of the drive transistor, and then provides an initialization voltage that brings the drive transistor into on state to the control terminal of the drive transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.