Refrigerator

A refrigerator comprising:

• a cabinet having (i) a refrigerating compartment disposed at an upper portion of the cabinet and (ii) a freezing compartment disposed at a lower portion of the cabinet;
• a main door configured to open and close at least a portion of the refrigerating compartment, the main door having (i) a door storage space and (ii) an opening that provides access to the door storage space;
• a sub door disposed at a front side of the main door and configured to open and close the opening of the main door, the sub door comprising a viewing portion that faces an outside of the refrigerator;
• a freezing compartment door configured to open and close at least a portion of the freezing compartment;
• a lighting member configured to illuminate the door storage space to thereby allow the door storage space to be visible from the outside through the viewing portion of the sub door;
• and
• an opening device disposed at the sub door and configured to couple the sub door to the main door and to release the sub door from the main door,
• wherein the sub door further comprises:
• a panel assembly comprising (i) a front panel defining a front surface of the panel assembly, (ii) a rear panel defining a rear surface of the panel assembly, and (iii) a spacer that defines a first space between the front panel and the rear panel,
• a plate that defines a plate opening that receives a portion of the panel assembly,
• the plate including (i) a front part that surrounds the plate opening and (ii) a side part that extends rearward from the front part and defines a side surface of the panel assembly,
• a door liner that defines a rear surface of the sub door, the door liner having a liner opening at an area corresponding to the panel assembly,
• an upper cap décor that defines a top surface of the sub door and is coupled to upper ends of the plate and the door liner,
• a lower cap décor that defines a bottom surface of the sub door and is coupled to lower ends of the plate and the door liner, and
• an insulation member provided in a second space that is defined by the panel assembly, the plate, the door liner, the upper cap décor, and the lower cap décor,
• wherein the sub door defines a first handle groove recessed upward from a lower surface of the sub door,
• wherein the freezing compartment door defines a second handle groove that faces the first handle groove and is recessed downward from an upper surface of the freezing compartment door,
• wherein the opening device comprises:
• a manipulation lever disposed at the first handle groove and configured to be manipulated by a user,
• a rod guide disposed within the second space of the sub door;
• a connecting rod that is connected to the manipulation lever and passes through the rod guide, and
• a latch that protrudes from the rear surface of the sub door toward the main door, the latch being configured to move to the main door based the user manipulating the manipulation lever to thereby release the sub door from the main door, and
• wherein the main door comprises a locking unit configured to catch or release the latch based the user manipulating the manipulation lever.