Source driver capable of removing offset in display device and method for driving source lines of display device
US8102355B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2006 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Nov 6, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0233
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A source driver and a source line driving method capable of removing the offset effect of an amplifier for every two frames. The source driver includes an amplification unit, an input controller and an output controller. The amplification unit includes a positive amplifier outputting an output voltage having a positive deviation relative to an input voltage applied thereto and a negative amplifier outputting an output voltage having a negative deviation relative to an input voltage applied thereto. The input controller transfers a first gray-level voltage corresponding to a driving voltage of a first source line and a second gray-level voltage corresponding to a driving voltage of a second source line adjacent to the first source line to the amplification unit in response to input positive control signals or input negative control signals. The output controller applies the output voltage of the positive amplifier or the output voltage of the negative amplifier to the first or second source line in response to output positive control signals or output negative control signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.