Shift register units and driving methods thereof, gate driving circuits and display devices with transistors having extended lifetime
US10269290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2017 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Aug 18, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present disclosure provide a shift register unit, a driving method thereof, a gate driving circuit, and a display device. The shift register unit comprises an input circuit, a reset circuit, a plurality of output circuits, a plurality of pull-down circuits and a plurality of pull-down control circuits. During a first time period, all of signals output by the plurality of output circuits are valid. During a second time period, at least one of the signals output by the plurality of output circuits is invalid, wherein the second time period comprises a first sub-period and a second sub-period, and the state of at least one of the signals output by the plurality of output circuits during the first sub-period is opposite to the state thereof during the second sub-period. The shift register unit may enable transistors in a pixel circuit to switch between ON and OFF states, so as to extend lifetime of the transistors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.