| 摘要 |
The present invention relates to an organic electroluminescence display device and a driving method thereof. The organic electroluminescence display device comprises: a plurality of pixels connected to scan lines and data lines; a scan driving unit which provides a scan signal to the pixels through the scan lines; a data driving unit which provides a data signal to the pixels through the data lines; and a power supply unit which supplies a first voltage and a second voltage to the pixels and supplies a third voltage to at least one of the scan driving unit and the data driving unit. The power supply unit comprises: a first converter which converts an input voltage into the first voltage; a second converter which converts the input voltage into the second voltage; a third converter which receives the first voltage generated from the first converter and converts the first voltage into the third voltage; and a shut down switch which controls whether the first voltage generated from the first converter is supplied to the pixels. According to the present invention, it is possible to increase a voltage conversion efficiency and prevent a failure of an image quality. |
