Abstract: Disclosed herein are a humidifying apparatus which may be prevented from being contaminated. A humidifying apparatus comprises a water tank configured to store water, a filter assembly configured to filter the water stored in the water tank and a humidifying assembly configured to perform humidification by absorbing and vaporizing the water filtered by the filter assembly, a drain flow passage provided at a lower surface of the humidifying assembly, wherein residual water remaining after being absorbed in the humidifying assembly is recovered in the water tank via the drain flow passage, and a guide rib configured to guide the water recovered in the water tank is provided in the water tank.

Abstract: A humidification filter, in one aspect, includes at least one of natural fiber and regenerated fiber mixed with a hydrophobic synthetic fiber.

Abstract: Disclosed herein are a humidifying apparatus which may be prevented from being contaminated. A humidifying apparatus comprises a water tank configured to store water, a filter assembly configured to filter the water stored in the water tank and a humidifying assembly configured to perform humidification by absorbing and vaporizing the water filtered by the filter assembly, a drain flow passage provided at a lower surface of the humidifying assembly, wherein residual water remaining after being absorbed in the humidifying assembly is recovered in the water tank via the drain flow passage, and a guide rib configured to guide the water recovered in the water tank is provided in the water tank.

Abstract: A humidification filter, in one aspect, includes at least one of natural fiber and regenerated fiber mixed with a hydrophobic synthetic fiber.

Abstract: A display apparatus having a video call function, a control method for controlling the display apparatus, and a video call system that uses the display apparatus and control method are provided. The display apparatus includes: an external source connection unit to which an external source is connected; a camera connection unit to which a camera is connected; a network communication unit which enables network communication with other display apparatuses; and a controller which controls a codec processing unit to process a video signal from at least one of the camera and the external source and output the processed signal to the network communication unit during the video call. The display apparatus can share various information input from the camera, a microphone, and the external source with an opposite call party.

Abstract: A display device which performs a video telephony is provided. The display device includes a photographing unit which photographs an image, a video telephony unit which performs a video telephony using an image photographed by the photographing unit, and a control unit which controls at least one of an operation of the photographing unit and an operation of the video telephony unit if a status of the photographed image meets a preset condition. Accordingly, power efficiency of a display device may be improved.

Abstract: An electrode precipitator having a high voltage electrode and a low voltage electrode arranged apart from each other at a desired interval. The high voltage electrode includes a charging part which is positioned upstream of an air flow direction to charge a pollutant, and a dust collection part which is spaced from the charging part and positioned downstream of the air flow direction to precipitate the charged pollutant therein.

Abstract: An electric precipitator prevents dielectric breakdown by ensuring the dielectric distance among a plurality of electrodes. The electric precipitator includes a charging section for charging dust particles in air, and a collecting section for collecting the dust particles charged by the charging section. The collecting section includes a high voltage electrode having a conductive layer coated with a dielectric layer, and a low voltage electrode having at least one protrusion that maintains a gap between the high voltage electrode and the low voltage electrode. The conductive layer includes at least one cutting part formed in an area corresponding to the protrusion.

Abstract: A display apparatus having a video call function, a control method for controlling the display apparatus, and a video call system that uses the display apparatus and control method are provided. The display apparatus includes: an external source connection unit to which an external source is connected; a camera connection unit to which a camera is connected; a network communication unit which enables network communication with other display apparatuses; and a controller which controls a codec processing unit to process a video signal from at least one of the camera and the external source and output the processed signal to the network communication unit during the video call. The display apparatus can share various information input from the camera, a microphone, and the external source with an opposite call party.

Abstract: A display apparatus having a video call function, a control method for controlling the display apparatus, and a video call system that uses the display apparatus and control method are provided. The display apparatus includes: an external source connection unit to which an external source is connected; a camera connection unit to which a camera is connected; a network communication unit which enables network communication with other display apparatuses; and a controller which controls a codec processing unit to process a video signal from at least one of the camera and the external source and output the processed signal to the network communication unit during the video call. The display apparatus can share various information input from the camera, a microphone, and the external source with an opposite call party.

Abstract: A refrigerator having a water supply device integrally formed with a rear surface of a storage chamber thereof. The refrigerator includes a storage chamber door to open and close a storage chamber, a dispenser mounted to the storage chamber door, and a water supply device separably connected to a rear surface of the storage chamber door adjacent to the dispenser, so as to supply water to the dispenser.

Abstract: An electrode precipitator having a high voltage electrode and a low voltage electrode arranged apart from each other at a desired interval. The high voltage electrode includes a charging part which is positioned upstream of an air flow direction to charge a pollutant, and a dust collection part which is spaced from the charging part and positioned downstream of the air flow direction to precipitate the charged pollutant therein.

Abstract: An electric precipitator prevents dielectric breakdown by ensuring the dielectric distance among a plurality of electrodes. The electric precipitator includes a charging section for charging dust particles in air, and a collecting section for collecting the dust particles charged by the charging section. The collecting section includes a high voltage electrode having a conductive layer coated with a dielectric layer, and a low voltage electrode having at least one protrusion that maintains a gap between the high voltage electrode and the low voltage electrode. The conductive layer includes at least one cutting part formed in an area corresponding to the protrusion.

Abstract: A display device which performs a video telephony is provided. The display device includes a photographing unit which photographs an image, a video telephony unit which performs a video telephony using an image photographed by the photographing unit, and a control unit which controls at least one of an operation of the photographing unit and an operation of the video telephony unit if a status of the photographed image meets a preset condition. Accordingly, power efficiency of a display device may be improved.

Abstract: A display apparatus and a method for implementing a screen saver for the display apparatus are provided. The display apparatus includes a display unit; a communication unit which performs a video communication; a display processing unit which displays an image associated with the video communication on at least partial area of a screen of the display unit; and a control unit which activates a screen saver process for a remaining area except the at least partial area of the screen, if a preset event has occurred.

Abstract: A display apparatus having a video call function, a control method for controlling the display apparatus, and a video call system that uses the display apparatus and control method are provided. The display apparatus includes: an external source connection unit to which an external source is connected; a camera connection unit to which a camera is connected; a network communication unit which enables network communication with other display apparatuses; and a controller which controls a codec processing unit to process a video signal from at least one of the camera and the external source and output the processed signal to the network communication unit during the video call. The display apparatus can share various information input from the camera, a microphone, and the external source with an opposite call party.

Abstract: A cyclone air purifier reduces pressure loss and noise generated from second cyclones and has an improved dust collecting efficiency. The cyclone air purifier includes a cylindrical main body, at least one first cyclone having at least one inlet formed through a side surface the main body to receive air therethrough and to perform a first dust separation operation on the air introduced therein having a first outlet pipe to discharge a first part of the air, and at least one second cyclone to receive a second part of the air from the first cyclone and to perform a second dust separation operation on the second part of the received air. An ionizer is installed in the first cyclone to ionize the dust in the air, and an inductor is installed in a guide duct, which connects the first and the second cyclones, to induce small particles of the ionized dust in the first cyclone into the second cyclone using an electrically attractive force.