Abstract: An air current changeable full front blowing type air conditioner is provided. The air current changeable full front blowing type air conditioner includes: a case configured to comprise a heat exchanger disposed inside the case; a main air blower configured to be disposed in rea of the heat exchanger inside the case and discharge a main air current from a full front of the case; and at least one auxiliary air blower configured to be positioned around the main air blower of the case and discharge an auxiliary air current for changing a direction of the main air current. The auxiliary air blower discharges the auxiliary air current in a direction where the auxiliary air current interferes with the main air current discharged from the full front of the case.

Abstract: The present disclosure relates to an air conditioning apparatus having an airflow controlling device including: a case having at least one surface provided with an outlet through which cold airflow is discharged; and a pair of sliding doors installed on the case to be able to cover the outlet and formed to be able to control an open area of the outlet.

Abstract: A cleaner includes a case which includes an inlet for suctioning in rubbish on a surface to be cleaned, a driver which is provided inside the case and includes a motor which generates power, a drum body which is provided in the inlet and configured to receive the power from the driver and rotate, and a drum blade arranged in an outer circumferential direction of the drum body and formed with a blade air current hole through which air suctioned in through the inlet passes.

Abstract: Provided is a multi-pulsed jets generating apparatus including: at least one actuator that generates pulsed jets in a plurality of orifices according to a volume change of a plurality of cavities caused by vibration of at least one diaphragm; and a manifold connected to the at least one actuator so as to generate multi-pulsed jets by receiving the pulsed jets occurring in the plurality of orifices. The velocity and uniformity of the pulsed jets occurring in the plurality of injection ports can be controlled according to vibration phases of a plurality of diaphragms.

Abstract: An air conditioner includes heat exchangers, an actuator configured to generate pulse-type air current by vibration of a diaphragm, a manifold connected to the actuator and having a plurality of blast ports to configured to blast multiple pulse-type air currents over a large area, and a Coand{hacek over (a)} surface configured to transfer the multiple pulse-type air currents blasted through the plurality of blast ports in a long distance. Therefore, the air conditioner can be useful in reducing generation of noise and being miniaturized.

Abstract: An image forming device includes a toner supplying unit to supply the toner to a storage unit. A mixer supplies developer in the storage unit to a developing roller, and a developer sensor detects the amount of developer on the surface of the developing roller. A toner concentration sensor detects toner concentration in the developer stored in the storage unit, and a control unit adjusts at least one of a developing bias and a rotation speed of the mixer based on a value detected by the developer sensor and a value detected by the toner concentration sensor, such that a printed image has uniform density.

Abstract: An LED package includes a substrate having an electrically conductive portion and an electrically non-conductive portion composed of an oxide of the conductive portion; an LED mounted on the conductive portion and electrically connected to the conductive portion; a first electrode disposed on the non-conductive portion and electrically connected to the LED by a wire; and a second electrode disposed on the substrate and electrically connected to the LED.

Abstract: An LED package and a fabrication method thereof are provided. The LED package includes an upper metal plate having an LED-receiving hole therein; a lower metal plate disposed under the upper metal plate; and an insulator which the upper metal plate and the lower metal plate from each other. A portion of the lower metal plate is exposed via the LED-receiving hole and an LED is mounted on the exposed portion of the lower metal plate and is electrically connected to both of the upper and lower metal plates. A protective cover encloses and protects exposed surfaces of the upper and lower metal plates.

Abstract: An electronic device includes a case that is capable of controlling colors. The electronic device includes a case containing thermochromic pigments. The case includes a plurality of thermoelectric elements disposed at an internal surface. The case is coupled to a power source unit that supplies power to the plurality of thermoelectric elements and a temperature sensor that measuring a temperature of the plurality of thermoelectric elements. The electronic device includes an input unit for setting a color of the case and a controller for controlling power supply of the power source unit such that a temperature of the plurality of thermoelectric elements measured by the temperature sensor is included in a temperature range corresponding to a color input from the input unit.

Abstract: A method of manufacturing an image forming element which can reduce a manufacturing time and a manufacturing cost with a simplified manufacturing process, an image forming element manufactured by the method, and an image forming apparatus having the same.

Abstract: A developing device using a two-component developing agent including a toner and a carrier. The developing device includes a toner concentration sensor which detects a concentration of a toner contained in the developing agent within the accommodation unit by using electrostatic capacity. The toner concentration sensor includes a frame combined with a housing that forms the accommodation unit, a measuring groove formed in the frame to be concave with respect to an inner surface of the housing so that the developing agent conveyed by the agitator is flowed into the measuring groove, and a pair of opposite electrodes disposed on the measuring groove.

Abstract: A method of creating a relationship diagram for electronic book (or e-book) contents in a reader includes determining whether there is a relationship diagram creation request in a current page. The method includes, if there is the relationship diagram creation request, determining whether there is a relationship diagram associated with a previous page. In addition, the method includes, if there is the relationship diagram associated with the previous page, displaying the relationship diagram in an input window. Further, the method includes, if the relationship diagram displayed in the input window is modified and there is a save request, allowing the modified relationship diagram to be saved in accordance with the current page.

Abstract: A method turns pages in an electronic book (e-book) reader. The method includes displaying an e-book as left/right pages and, if a page turn signal is generated, turning a left page or a right page while displaying an action of turning a left page to the right or a right page to the left as if turning pages of a paper book.

Abstract: An image forming element includes an image drum including a plurality of ring electrodes and a slot. The plurality of ring electrodes are formed to be spaced apart from one another on a circumference of the image drum. The slot is formed in a longitudinal direction on the image drum. A connecting member includes a plurality of connecting electrodes and is disposed inside the image drum so that an end of the connecting member is received in the slot. The connecting electrodes are electrically connected with the ring electrodes one to one on the same line.

Abstract: A method of manufacturing a light emitting device includes: forming a plurality of independent light emitting portions on a growth substrate; separating the light emitting portions from the growth substrate; mounting the light emitting portions onto a receiving substrate; and dicing the receiving substrate, onto which the light emitting portions are mounted, into a light emitting unit. Residual stress, which occurs when the light emitting portions are separated from the substrate, can be reduced, and the light emitting portions can be mounted onto the receiving substrate in a fluid state, whereby the light emitting device can be easily mass produced with excellent quality, and its manufacturing costs can be reduced.

Abstract: A light emitting diode (LED) array module includes a plurality of LEDs; and a substrate which mounts the LEDs and has a built-in cooling device for cooling heat generated when the LED is driven. The cooling device includes a heat radiation space formed on the substrate and a minute passage member which is wick- or mesh-structured to form a plurality of minute passages that operate by a heat pipe principle in the heat radiation space. The cooling device operating by the heat pipe principle is integrally formed on the substrate mounted with the LEDs, so heat radiation performance of the LEDs is enhanced, such that the LEDs can operate stably for a long time.

Abstract: An image forming device includes a toner supplying unit to supply the toner to a storage unit, a mixer to supply developer in the storage unit to a developing roller, a developer sensor to detect the amount of developer on the surface of the developing roller, a toner concentration sensor to detect toner concentration in the developer stored in the storage unit, and a control unit to adjust at least one of a developing bias and a rotation speed of the mixer based on a value detected by the developer sensor and a value detected by the toner concentration sensor, such that a printed image has uniform density.

Abstract: An LED package and a fabrication method thereof are provided. The LED package includes an upper metal plate having an LED-receiving hole therein; a lower metal plate disposed under the upper metal plate; and an insulator which the upper metal plate and the lower metal plate from each other. A portion of the lower metal plate is exposed via the LED-receiving hole and an LED is mounted on the exposed portion of the lower metal plate and is electrically connected to both of the upper and lower metal plates. A protective cover encloses and protects exposed surfaces of the upper and lower metal plates.

Abstract: An LED package and a fabrication method thereof are provided. The LED package includes an upper metal plate having an LED-receiving hole therein; a lower metal plate disposed under the upper metal plate; and an insulator which the upper metal plate and the lower metal plate from each other. A portion of the lower metal plate is exposed via the LED-receiving hole and an LED is mounted on the exposed portion of the lower metal plate and is electrically connected to both of the upper and lower metal plates. A protective cover encloses and protects exposed surfaces of the upper and lower metal plates.

Abstract: A developing device and an electrophotographic image forming apparatus are disclosed. The developing device includes a ferromagnetic member arranged to cover at least partially the outer circumferences of two repulsive magnets of a developing roller so as to form a separating portion from which the developing agent remaining residual on the developing roller is released.