POWER SUPPLY DEVICE AND DISPLAY DEVICE HAVING THE SAME

摘要

One purpose of the present invention is to provide an organic light emitting display device capable of changing an image display mode by not damaging a power production unit wherein external shock voltage is applied. A display device includes a display panel, a panel driving unit, a timing control unit, a first power production unit, a second power production unit, and a power selection unit. The display panel includes a pixel connected to a power supply line. The panel driving unit drives the display panel. The timing control unit controls the panel driving unit. The first power production unit produces first power voltage having a first power level in a first image display mode and second voltage level in a transition segment between the first image display mode and a second image display mode. The second power production unit produces second power voltage. The power selection unit performs a power selection action. The power selection action is an action which supplies the first power voltage to the power supply line in the first image display mode, supplies the second power voltage to the power supply line in the second image display mode, and supplies the first power voltage and the second power voltage to the power supply line in the transition segment.