| 摘要 |
A display apparatus and method are provided. A first control unit of the display device controls operation of the display apparatus, receives image signals from the external device, and displays the image signals. A second control unit receives user commands input through an input unit which is mounted in the display apparatus, and receives the image signals from the external device. If an abnormal image signal is received from an external device, the first control unit enters power save mode, and the second control unit , enters stand-by mode. Accordingly, whether normal image signals are input can be determined using the second control unit which has entered power save mode, so that the display apparatus can reduce the amount of power consumed after the display apparatus goes into power save mode.
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