| 摘要 |
The present invention discloses an input device for a refrigerator through which the user can input a control command for controlling the operation of the refrigerator. The input device for the refrigerator can reduce an operation error and cut down a production cost by using optical signals. The input device for the refrigerator includes a display device having at least one button region, and an optical sensor unit mounted on the front or side surface of the display device, for advancing optical signals at the front portion of the button region.
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