Gate driving circuit applied for 2D-3D signal setting
US9472150B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 14, 2014 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Mar 27, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a gate driving circuit applied for 2D-3D signal setting, 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, a pull-down holding part and a pull-up compensation part; on the basis of the gate driving circuit utilizing the present GOA skill, the present invention adds a pull-up compensation part to compensate the leakage gap existing in the 2D signal transmission to ensure that the voltage level of the gate signal point Q(N) will not descend in leakage gap period; by introducing an additional DC control signal source DC to control the activation and deactivation of the pull-up compensation part for activating it in 2D mode to realize compensation and deactivating it in 3D mode to prevent the influence to the 3D signal transmission. The pull-up compensation part can be effectively controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.