Display apparatus of food refrigerator

A display apparatus of a food refrigerator designed to differentiate a user interface such as a product specification from a conventional product by illuminating a selected portion at 100% rate and an unselected portion at 50% rate using a light guide plate is provided to stimulate customer's purchasing desire and to improve space efficiency. A display apparatus of a food refrigerator contains: a display printed circuit board(10); a plurality of LEDs(50) installed inside the display PCB; a reflector(70) irradiating light of the LEDs in the forward direction by covering the LEDs; a cover sheet(90) in which a region expressing an operating state is printed; a light guide plate(30) installed between the reflector and cover sheet; and a lamp irradiating the light guide plate with light. The lamp is an LED lamp and operated by a locking/unlocking key.