Pixel driving circuit and driving method thereof, array substrate and display device
US9786244B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 16, 2013 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Dec 8, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0252
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel driving circuit and driving method thereof, an array substrate and a display device. The pixel driving circuit can maintain a voltage difference between two terminals of a storage capacitor (Cst) when a gate line scanning is ended. The pixel driving circuit comprises a pixel thin film transistor (T0) and a storage capacitor (Cst), wherein a gate of the pixel thin film transistor (T0) is connected to a gate line, a first terminal of the pixel thin film transistor (T0) is connected to a data signal (Data), a second terminal of the pixel thin film transistor (T0) is connected to a first terminal of the storage capacitor and a second terminal of the storage capacitor (Cst) is grounded. The pixel driving circuit further comprises a follow module connected the first terminal of the storage capacitor (Cst), and configured to maintain a voltage difference between two terminals of the storage capacitor (Cst) when a gate scanning signal (Gate(n)) makes a transition from a high level to a low level, so as to enable the pixel electrode to obtain sufficient voltage thereby ensuring the display effect of the liquid crystal display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.