Drive circuit, display device, and drive method
US9412299B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2014 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Sep 8, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A drive circuit for a light emitting element which can correct a threshold voltage of a drive transistor between two reference voltages without a reset power supply. The drive circuit includes a light emitting element, a drive transistor for controlling an amount of current, a first switching element that is arranged between the light emitting element and the drive transistor, a second switching element that is arranged between the drive transistor and the second reference voltage, a third switching element that is arranged between a gate, and one of a source and a drain of the drive transistor, a fourth switching element that is connected to the other of the source and the drain of the drive transistor, and controls input of signal voltage, and a first capacitor connected to the gate of the drive transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.