Method of driving gate lines, gate line drive circuit for performing the method and display device having the gate line drive circuit
US7880503B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2009 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Jul 15, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0286
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of driving gate lines is used to activate the gate lines by outputting output signals of stages to the gate lines. A first node is boosted up based upon a carry signal or the vertical start signal from a previous stage. A gate signal that is pulled up is outputted through an output terminal of a present stage based upon a first clock signal which is boosted up. An off-voltage is outputted through the output terminal of the present stage in response to an output signal from a next stage or the vertical start signal. The first node is discharged in response to the output signal from the next stage or a carry signal from a last stage. A positive ripple voltage at the first node is removed by providing a negative ripple voltage to the first node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.