A refrigerator comprising: a front panel defining an external surface of the refrigerator and having a touch area which includes a touch point ; a touch board being a Printed Circuit Board and comprising: a first side attached to a location on a rear surface of the front panel , the location corresponding to the touch area ; a second side opposite to the first side; a hole formed in the touch board at a position corresponding to the touch point , a center of the hole being aligned with a center of the touch point , a pressing portion formed in the center of the hole ; and one or more bridges connecting an inner edge of the hole and an edge of the pressing portion ; a holder that is positioned to overlap with the pressing portion and the hole , and that is attached to the second side of the touch board , the holder having a receiving portion; a piezo disc having a first electrode and a second electrode , the piezo disc configured to be inserted in the receiving portion of the holder and to contact the pressing portion ; a guide board having a seating hole configured to receive the holder and the piezo disc , the guide board positioned on the second side of the touch board ; and a first adhesive member attached to the first side of the touch board and configured to attach to the rear surface of the front panel . a front panel defining an external surface of the refrigerator and having a touch area which includes a touch point ; a touch board being a Printed Circuit Board and comprising: a first side attached to a location on a rear surface of the front panel , the location corresponding to the touch area ; a second side opposite to the first side; a hole formed in the touch board at a position corresponding to the touch point , a center of the hole being aligned with a center of the touch point , a pressing portion formed in the center of the hole ; and one or more bridges connecting an inner edge of the hole and an edge of the pressing portion ; a holder that is positioned to overlap with the pressing portion and the hole , and that is attached to the second side of the touch board , the holder having a receiving portion; a piezo disc having a first electrode and a second electrode , the piezo disc configured to be inserted in the receiving portion of the holder and to contact the pressing portion ; a guide board having a seating hole configured to receive the holder and the piezo disc , the guide board positioned on the second side of the touch board ; and a first adhesive member attached to the first side of the touch board and configured to attach to the rear surface of the front panel . a first side attached to a location on a rear surface of the front panel , the location corresponding to the touch area ; a second side opposite to the first side; a hole formed in the touch board at a position corresponding to the touch point , a center of the hole being aligned with a center of the touch point , a pressing portion formed in the center of the hole ; and one or more bridges connecting an inner edge of the hole and an edge of the pressing portion ; a holder that is positioned to overlap with the pressing portion and the hole , and that is attached to the second side of the touch board , the holder having a receiving portion; a piezo disc having a first electrode and a second electrode , the piezo disc configured to be inserted in the receiving portion of the holder and to contact the pressing portion ; a guide board having a seating hole configured to receive the holder and the piezo disc , the guide board positioned on the second side of the touch board ; and a first adhesive member attached to the first side of the touch board and configured to attach to the rear surface of the front panel . <EOS>