Self-compensating gate driving circuit
US9524688B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 14, 2014 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Jun 3, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a self-compensating gate driving circuit, comprising: a plurality of GOA units which are cascade connected, and a Nth GOA unit controls charge to a Nth horizontal scanning line G(n) in a display area, and the Nth GOA unit controls charge to a Nth horizontal scanning line G(n) in a display area, and the Nth GOA unit comprises a pull-up controlling part, a pull-up part, a transmission part, a first pull-down part, a bootstrap capacitor part and a pull-down holding part; the pull-up part, the first pull-down part, the bootstrap capacitor part and the pull-down holding circuit are respectively coupled to a Nth gate signal point Q(N) and the Nth horizontal scanning line G(n), and the pull-up controlling part and the transmission part are respectively coupled to the Nth gate signal point Q(N), and the pull-down holding part is inputted with a DC low voltage VSS; the pull-down holding part comprises a first pull-down holding part and a second pull-down holding part to alternately work. The present invention is designed to have the pull-down holding part with self-compensating function to promote the reliability of the long term operation for the gate driving…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.