Abstract: Disclosed are a composition for an organic optoelectronic device including at least one kind of a first host compound represented by the Chemical Formula 1 and at least one kind of a second host compound represented by the Chemical Formula 2, and an organic optoelectronic device and a display device including the composition.

Abstract: Excitation used to produce luminescence is cancelled using interference with an excitation cancelling beam by controlling or setting a phase difference. An excitation beam and an excitation cancelling beam are produced from a common source and the excitation beam directed quantum light emitter to produce luminescence. A residual excitation beam and the excitation cancelling beam are coupled to interfere destructively so that the luminescence is available for detection or otherwise without substantial portions of the excitation beam.

Abstract: A refrigerator is disclosed. The refrigerator includes a cabinet comprising a storage chamber, a cold air generation chamber provided above the storage chamber, an evaporator provided in the cold air generation chamber, and a refrigerant tube configured to pass through a predetermined wall of the cold air generation chamber, not passing the storage chamber, to be connected with the evaporator. An object of the present disclosure is to provide a refrigerator which has an efficient installation structure of a refrigerant tube connected with an evaporator provided in a cold air generation chamber provided above a storage chamber to enlarge storage space of the storage chamber.

Abstract: A refrigerator is disclosed. The refrigerator includes a refrigerator body having a storage chamber defined therein, a refrigeration cycle device for cooling the storage chamber, a chilling case for receiving a beverage container such that the chilling case surrounds the beverage container in a contact manner, and a rapid cooling device, having a case receiving part for receiving the chilling case, for cooling a coolant using the refrigeration cycle device and spraying the cooled coolant to an outside of the chilling case in a vicinity of the chilling case. A beverage is cooled in a state in which the beverage container is not in direct contact with the coolant, whereby the coolant is not present at the outside of the beverage container, and therefore, the beverage container is kept sanitary.

Abstract: A refrigerator includes a cabinet comprising a storage compartment An evaporator is positioned at an upper portion of the cabinet and generates cold air supplied to the storage compartment. A unit (e.g., closable damper) controls supply of cold air generated by the evaporator to the storage compartment.

Abstract: Disclosed is a refrigerator in which a cool air generation chamber and a machine room are disposed in the upper portion of a main body of the refrigerator, and a structure of a cover grill disposed in front of the cool air generation chamber and the machine room is changed, thereby achieving stable heat radiation of the machine room and efficient operation of the refrigerator.

Abstract: A refrigerator, in which a main body includes a refrigerating chamber and a freezing chamber. A cold air generation chamber for the freezing chamber is provided on an uppermost part of the main body, communicates with the freezing chamber, and houses a freezing chamber evaporator. A cold air generation chamber for the refrigerating chamber is provided separate from the cold air generation chamber for the freezing chamber and houses a refrigerating chamber evaporator.

Abstract: A refrigerator includes an air guide that is provided with a defrost water hole and that is inclined toward the defrost water hole. The air guide guides cold air discharged from the cold air fan to a guide duct and also guides, to the defrost water hole, defrost water generated at the cold air fan.

Abstract: Disclosed is a refrigerator that includes a main body having a cooling chamber. The refrigerator also includes a door coupled to the main body and configured to open and close the cooling chamber. The refrigerator further includes a home bar positioned at a front surface of the door and configured to provide access to contents of the refrigerator without opening the door. In addition, the refrigerator includes a heater positioned at the home bar and configured to adjust an amount of heat based on an ambient temperature.

Abstract: A refrigerator includes a cabinet having a plurality of storage compartments and a cold air generating compartment provided in an upper portion of the cabinet. The cold air generating compartment is in communication with the plurality of the storage compartments and houses a plurality of evaporators, with each evaporator corresponding to a particular storage compartment in the cabinet.

Abstract: A refrigerator, in which an evaporator and a cold air fan are horizontally arranged in a cold air generating compartment positioned at an upper portion of the refrigerator. The evaporator and the cold air fan extend along a depth of the refrigerator in forward and rearward directions of the refrigerator.

Abstract: A refrigerator is provided. The refrigerator may include first and second refrigerant paths that separately distribute refrigerant, a first cooling chamber connected with a first cold air duct, a second cooling chamber connected with a second cold air duct, and a third cooling chamber connected with a third cold air duct. Cold air generated by a first evaporator is provided to the first cold air duct to cool the first cooling chamber, cold air generated by a second evaporator, which receives refrigerant from the first evaporator, is provided to the second cold air duct to provide concentrated cooling to the second cooling chamber, and cold air generated by a third evaporator is provided to the third cold air duct to cool the third cooling chamber.

Abstract: A defroster is provided in a refrigerator, in which a damper mounted to an inlet to a circulating duct controls air to flow in a reverse direction toward an evaporator to maximize a defrosting efficiency by using not only radiant heat but also convective heat. The defroster includes the evaporator, a heater that defrosts the evaporator by radiation, and a flow controller that controls air circulated by a fan to flow in a reverse direction toward the evaporator in defrosting.

Abstract: A refrigerator is disclosed. The refrigerator includes a refrigerator body having a storage chamber defined therein, a refrigeration cycle device for cooling the storage chamber, a coolant cooler, having a coolant channel for allowing a coolant to pass therethrough, for performing heat exchange between the coolant and a refrigerant of the refrigeration cycle device to cool the coolant, a coolant supply channel for guiding the coolant cooled by the coolant cooler, a rapid cooling body, in which a beverage container receiving part is defined, having a plurality of spray holes for spraying the coolant supplied through the coolant supply channel to the outside of a beverage container, a coolant collection channel for guiding the coolant discharged from the rapid cooling body to the coolant cooler, and a circulation pump mounted on the coolant supply channel and/or the coolant collection channel for circulating the coolant.

Abstract: A refrigerator is provided. The refrigerator may include a cold air generation chamber provided in a body of the refrigerator, the cold air generation chamber having an evaporator installed therein. A cold air duct may form a path through which cold air generated in the cold air generation chamber is circulated to a freezer compartment, and a quick freezer compartment. The quick freezer compartment may be connected with the cold air duct, and may be positioned substantially nearer to the evaporator than the freezer compartment. A damper may be installed in the cold air duct to selectively shut off the flow of cold air to the freezer compartment. The quick freezer compartment may be quickly cooled using cold air directly supplied from the cold air generation chamber. Furthermore, cold air may be directed into the quick freezer compartment by selectively shutting off the supply of cold air into the freezer or refrigerator compartment.

Abstract: A refrigerator and an operating method thereof are disclosed. The refrigerator includes a refrigerator body having a storage chamber defined therein, a refrigeration cycle device for cooling the storage chamber, a thawing box mounted in the storage chamber, the thawing box having a plurality of air jet holes formed therethrough, a thawing heater mounted in the thawing box for heating a stored object in the thawing box, and a blower mounted at the thawing box for introducing cool air from the storage chamber into the thawing box through the air jet holes such that the stored object is cooled by the air and discharging the air out of the thawing box. The thawing box, the thawing heater, and the blower perform not only a thawing function but also a rapid cooling function, thereby manufacturing the refrigerator in a simple structure at low costs and improving spatial utilization of the storage chamber.

Abstract: A refrigerator is disclosed. The refrigerator includes a refrigerator body having a storage chamber defined therein, a refrigeration cycle device for cooling the storage chamber, a chilling case for receiving a beverage container such that the chilling case surrounds the beverage container in a contact manner, and a rapid cooling device, having a case receiving part for receiving the chilling case, for cooling a coolant using the refrigeration cycle device and spraying the cooled coolant to an outside of the chilling case in a vicinity of the chilling case. A beverage is cooled in a state in which the beverage container is not in direct contact with the coolant, whereby the coolant is not present at the outside of the beverage container, and therefore, the beverage container is kept sanitary.

Abstract: According to the present invention, a refrigerator comprises: a main body having a storage compartment; a refrigerating cycle apparatus for cooling the storage compartment; a quick cooling body which accommodates beverages inserted therein, and which has a plurality of jet-colliding holes for jet-colliding the cooling air in the storage compartment against the beverages; a quick cooling air blower which enables the cooling air in the storage compartment to flow toward the quick cooling body such that the cooling air in the storage compartment passes through the jet-colliding holes, is jet-collided against the beverages, and is then discharged to the storage compartment; and a quick cooling body moving mechanism mounted in the main body and connected to the quick cooling body to move the quick cooling body, thereby minimizing the quick cooling time of the beverages.

Abstract: A refrigerator, in which a main body includes a refrigerating chamber and a freezing chamber. A cold air generation chamber for the freezing chamber, a cold air generation chamber for the refrigerating chamber, and a machine room are provided on an uppermost part of the main body to allow for increased space in the refrigerating and freezing chambers.

Abstract: Disclosed is a refrigerator in which a cool air generation chamber and a machine room are disposed in the upper portion of a main body of the refrigerator, and a structure of a cover grill disposed in front of the cool air generation chamber and the machine room is changed, thereby achieving stable heat radiation of the machine room and efficient operation of the refrigerator.