Refrigerator door and manufacturing method of the same

A manufacturing method of a refrigerator door comprising:

• mounting, at a front panel, a cover display and a touch sensor assembly;
• mounting, at the front panel, a frame configured to receive the cover display and the touch sensor assembly;
• mounting, at the front panel, an upper cap decoration unit and a door liner;
• filling a space defined by the front panel, the door liner, and the upper cap decoration unit with a foam liquid and foaming the foam liquid;
• and
• mounting, at the cover display, a frame display having a display unit fixed to the frame display.

A refrigerator door comprising:

• a front panel made of a steel material, the front panel being provided at a front of the refrigerator door and forming a front appearance of the refrigerator door, the front panel including a first through hole and an input unit;
• a door liner forming a rear appearance of the refrigerator door;
• an upper cap decoration unit configured to seal an upper side of a first space defined between the front panel and the door liner;
• a frame attached to an inside of the front panel and defining a second space that is separated from the first space defined by the front panel, the door liner, and the upper cap decoration unit;
• a display assembly provided between the frame and the front panel and configured to emit light through the first through hole;
• and
• a touch sensor assembly provided between the frame and the front panel, the touch sensor assembly being fixed to a rear of the front panel at a position that corresponds to a location of the input unit;
• and
• a diffusion plate provided between the inside of the front panel and the display assembly and configured to diffuse light, the diffusion plate being in contact with one side of the first through hole.