Gate driving circuit and display apparatus having the same
US7417458B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2007 |
| Grant date | Aug 26, 2008 |
| Priority date | — |
| Expiry date | Aug 17, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C19/184
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a gate driving circuit and a display apparatus having the same, a ripple preventing part is connected to a pull-up part and a control terminal (Q-node) to reset the Q-node. The ripple preventing part includes a first ripple preventing device that resets the Q-node during a high period of the first clock within a (n−1)H period, and a second ripple preventing device that resets the Q-node during a high period of a second clock within the (n−1)H period. A back-flow preventing device is connected between a previous carry node and the second ripple preventing device to prevent an electric charge of the Q-node from flowing back to the previous carry node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.