Shift register unit and driving method thereof, gate driving circuit and driving method thereof, and display device
US11227524B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 17, 2018 |
| Grant date | Jan 18, 2022 |
| Priority date | — |
| Expiry date | Nov 14, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A shift register unit and a driving method thereof, a gate driving circuit and a driving method thereof, and a display device are provided to improve a stability of the shift register unit. The shift register unit includes a first input circuit, a second input circuit, an output circuit, a first pull-down circuit, and a second pull-down circuit and further includes: a first pull-down control circuit configured to control a level of the first pull-down node; a second pull-down control circuit configured to output a voltage of the third voltage terminal to the first pull-down node under the control of the fifth voltage terminal; a third pull-down control circuit configured to control a level of the second pull-down node; and a fourth pull-down control circuit configured to output the voltage of the third voltage terminal to the second pull-down node under the control of the fourth voltage terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.