Organic light emitting display device and driving method thereof
US9558692B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2014 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Jan 3, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An organic light emitting display device includes a display unit including pixels coupled to scan lines and data lines, first and second power lines coupled to the pixels, a DC-DC converter configured to output first and second power sources to the pixels via the first and second power lines, respectively, and a short-circuit-sensing circuit configured to detect whether a short-circuit between the first and second power lines occurs, and configured to control an operation of the DC-DC converter when the short-circuit is detected, wherein voltage levels of the first and second power sources are configured to be changed in a frame period, the frame period including a reverse voltage application period in which the voltage level of the second power source is higher than that of the first power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.