Shift register unit, gate driving device, display panel and display device
US9190170B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 27, 2014 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Oct 27, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0286
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The embodiments of the present invention provide a shift register unit, a gate driving device, a display panel and a display device for solving the problem of relatively large noise in the signal outputted by the shift register unit within non-working time when the clock signal is of high level. Within the non-working time of the shift register unit, i.e., when displaying a frame of images, in periods of time other than the period of time when the scan trigger signal is of high level and the period of time when the output end of the shift register unit is of high level, the first pull-down drive module can connect the output end of the shift register unit with a low level signal end when the received clock signal is of high level, or when the received clock signal is of low level and the output end of the shift register unit is of low level, thereby releasing the noise coupled to the output end of the shift register unit by the high level signal to the low level signal end, so as to reduce the noise in the signal outputted by the shift register unit in the non-working time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.