Source driver having charge sharing function for reducing power consumption and driving method thereof
US8493308B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 2009 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Jul 19, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A source driver includes a plurality of first data channel pairs, a plurality of second data channel pairs, a first switch group, a second switch group, a third switch group, and a fourth switch group. Each of the first data channel pairs includes a first odd channel and a first even channel. The channels outputting voltages having the same polarity are short circuited together through the switch groups during a charge sharing period. As a result, the swings of the voltages of data lines coupled the corresponding channel are reduced, and further power consumption in the source driver could be reduced as compared with the related art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.