Patent ID: 7815102

Claim:
A refrigerator, comprising: a freezing chamber including a freezing chamber door, and for keeping frozen food items; a cooling chamber including a cooling chamber door, and for keeping refrigerated food items; a controller for controlling an operation of the refrigerator; and an input device installed on the freezing chamber door or the cooling chamber door, and for inputting a control command which controls the operation of the refrigerator, and displaying a state of the refrigerator, wherein the input device comprises: a display having one or more button regions; an optical sensor for sensing the button region selected by a user according to whether optical signals are shielded, and transmitting a signal indicating the sensed state to the controller; and a power supply button for supplying power to the optical sensor, and wherein the button region comprises: a button having a through hole for selectively passing an optical signal; and a supporting unit for elastically supporting the button in a longitudinal direction.