Gate lines driving circuit and driving method
US6717566B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 2001 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Nov 15, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/3677
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a driving circuit and the driving method for driving gate control lines G—1 . . . G_N. The gate control lines G—1 . . . G_N are evenly divided into L groups. The driving circuit comprises a gate line control logic circuit, a first level shifter module, a second level shifter module and a multipliexer. The first level shifter module is controlled by the gate line control logic circuit, and scans the driving lines D—1 . . . D_K in each time slot to drive the driving lines one by one, wherein L*K=N. The second level shifter module is controlled by the gate line control logic circuit, and scans the L groups in each time frame to select the L groups one by one. The multiplexer is used to connect the driving lines D—1 . . . D_K to the gate control lines of a selected group, and connect the gate control lines of unselected groups to a predetermined power line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.