Data driving circuit and driving method of light emitting display using the same
US8217866B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 20, 2006 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Mar 5, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data driving circuit capable of displaying images having uniform brightness. The present invention provides a data driving circuit of a display device having: at least one current sinking unit for controlling a predetermined current to flow in a data line; at least one voltage generating unit for resetting voltage values of enhancement voltages using a compensation voltage generated when the predetermined current flows; at least one digital-analog converter for selecting as a data signal one of the enhancement voltages to correspond to a digital value of externally supplied data; at least one boosting unit for boosting a voltage value of the data signal; and at least one switching unit for providing the data line with the boosted data signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.