| 摘要 |
<p>The present invention relates to a display device. There is disclosed a power supply unit and of a display device and a method thereof that can reduce frequency interference by electro-magnetic interference (EMI). A power supply unit of a display device according to an exemplary embodiment of the present invention for supplying power to a signal processor and a lamp of the display device includes: an AC input section receiving and supplying AC power; a converter section converting the AC power into DC power and supplying power to the signal processor; an inverter section converting the DC power into the AC power and supplying power to the lamp; and a mi-com having main ICs and feedback circuits of the converter section, the inverter section, and the signal processor, wherein a DC filter for converting noise frequencies generated by operating the circuits into signals of a pulse type is provided in the converter section and the inverter section and the mi-com differently sets control signals outputted from the converter section and the inverter section by using an analysis result of the pulse signals outputted from the DC filter portion.</p> |
