Shift register unit and method for driving same, gate drive circuit, and display device
US11410587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2020 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | Nov 26, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0286
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are a shift register unit and a method for driving the same, a gate drive circuit, and a display device. The pull-down control circuit in the shift register unit is capable of controlling a potential of a second pull-up node under control of the input signal provided by an input signal terminal. The pull-down circuit is capable of performing noise reduction on a first pull-up node and an output terminal under control of the second pull-up node. Since the potential of the second pull-up node is not pulled up due to the bootstrap effect, the threshold voltages of transistors in the pull-down circuit are less shifted, and the service life of the shift register unit is relatively long.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.