| 摘要 |
PURPOSE: A display device is provided to ensure stable power supply by employing an auxiliary power unit which is activated in case of a failure of a main power unit. CONSTITUTION: A driving chip drives a plurality of light emitting elements. A controller(40) provides control signals to the driving chip and controls on/off of main and auxiliary power units. The main power unit(50) provides power to the light emitting elements, the driving chip, and the controller. The auxiliary power unit(60) provides power to the light emitting elements, the driving chip, and the controller in case of a failure of the main power unit.
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