Abstract: A compound including a benzimidazole ring structure, represented by general formula (1). (In formula (1), X1 and X2 may be the same or different and each represent a specific carbon atom or a nitrogen atom, Ar represents a specific group, R1 and R2 may be the same or different and each represent a specific group, and m is an integer of 0-4.

Abstract: Disclosed is an organic light emitting device including a first electrode, a second electrode opposite to the first electrode, and at least one organic layer interposed between the first and second electrodes. The organic layer includes first and second compounds represented by Formulae A and B, respectively: The organic light emitting device exhibits low driving voltage, high efficiency, and long life. Due to these advantages, the organic light emitting device is useful in a variety of industrial applications, including displays and lighting systems.

Abstract: Disclosed is an organic light emitting compound represented by Formula 1: HAr1—(L)n—HAr2??(1); an organic light emitting device including the organic light emitting compound of Formula 1: and an organic light emitting device including the organic light emitting compound of Formula 1 as a first compound and a second compound represented by Formula 2: HAr3—(L)n—HAr4??(2) .

Abstract: A compound including a benzimidazole ring structure, represented by general formula (1). (In formula (1), X1 and X2 may be the same or different and each represent a specific carbon atom or a nitrogen atom, Ar represents a specific group, R1 and R2 may be the same or different and each represent a specific group, and m is an integer of 0-4.

Abstract: Disclosed is an organic light emitting compound represented by Formula I: Also disclosed is an organic light emitting device including the organic light emitting compound. The organic light emitting device can be driven at a low voltage to achieve high power efficiency. In addition, the organic light emitting device has excellent luminescent properties, such as high luminance and high luminous efficiency. Due to these advantages, the organic light emitting device can be utilized as a display device or a lighting device.

Abstract: A Light Emitting Diode (LED) driver apparatus and a method of driving an LED array are provided. A Light Emitting Diode (LED) driver apparatus includes: a DC-DC converter configured to supply a driving voltage to an LED array, a plurality of LED drivers configured to drive the LED array according to a dimming signal, in which the plurality of LED drivers are connected to one another in parallel to supply currents to the LED array.

Abstract: Embodiments of the present invention are directed to a condensed-cyclic compound and an OLED including the same.

Abstract: Disclosed is an organic light emitting device including a first electrode, a second electrode opposite to the first electrode, and at least one organic layer interposed between the first and second electrodes. The organic layer includes first and second compounds represented by Formulae A and B, respectively: The organic light emitting device exhibits low driving voltage, high efficiency, and long life. Due to these advantages, the organic light emitting device is useful in a variety of industrial applications, including displays and lighting systems.

Abstract: Disclosed is an organic light emitting compound represented by Formula 1: HAr1-(L)n-HAr2?? (1) Also disclosed is an organic light emitting device including the organic light emitting compound of Formula 1. Also disclosed is an organic light emitting device including the organic light emitting compound of Formula 1 as a first compound and a second compound represented by Formula 2: HAr3-(L)n-HAr4?? (2) The organic light emitting devices exhibit low driving voltage, high efficiency, and long life. Due to these advantages, the organic light emitting devices are useful in a variety of industrial applications, including displays and lighting systems.

Abstract: Disclosed is an organic light emitting compound represented by Formula I: Also disclosed is an organic light emitting device including the organic light emitting compound. The organic light emitting device can be driven at a low voltage to achieve high power efficiency. In addition, the organic light emitting device has excellent luminescent properties, such as high luminance and high luminous efficiency. Due to these advantages, the organic light emitting device can be utilized as a display device or a lighting device.

Abstract: A method for packet processing in a network including a plurality of terminals, includes generating, by a first terminal, a packet including a geographical address. The first terminal transmits the packet transmitted to a destination. The geographical address includes a location information field having location information of the first terminal and a range field indicating whether the destination is a single destination representing that the destination is a target terminal or an area destination representing the destination is a target area. The range field has range information of the target area in the case that the destination is the area destination.

Abstract: Localization and map building apparatus and method applicable to a mobile robot are provided. In an exemplary embodiment, a map building apparatus extracts a pattern of landmarks of the same kind and adjusts a landmark map using the extracted pattern when generating the landmark map for localization. Accordingly, since the landmark map is adjusted based on the pattern extracted on the basis of location information of each landmark, accuracy of localization and map building of the mobile robot can be improved.

Abstract: Provided is an apparatus, method, and medium for allowing a mobile robot to simultaneously perform a cleaning process and a map-creating process. The apparatus includes a feature-map-creating unit creating a feature map for recognizing the position of a mobile robot; a path-map-creating unit creating a path map including a plurality of cells, each having information about whether an obstacle exists and path information, on the basis of information on the pose of the mobile robot that is obtained from the feature map; and a motion-control unit moving the mobile robot on the basis of the information about whether the obstacle exists and the path information.

Abstract: A Light Emitting Diode (LED) driver apparatus and a method of driving an LED array are provided. A Light Emitting Diode (LED) driver apparatus includes: a DC-DC converter configured to supply a driving voltage to an LED array, a plurality of LED drivers configured to drive the LED array according to a dimming signal, in which the plurality of LED drivers are connected to one another in parallel to supply currents to the LED array.

Abstract: Provided are a method, medium, and apparatus for docking a mobile robot.

Abstract: While a user uses one service in a digital multimedia broadcasting receiving terminal, there is implemented a function for suspending the service currently being used and enabling a different service to be used when the different service is provided. A function for enabling a call service to be used during a broadcast service is implemented. A call screen is displayed in a state in which a broadcast service connection is maintained, such that the user can use a new call service without stopping the broadcast service currently being used. In this concurrent service, switching between the call screen and a broadcast screen is possible. This display method can prevent images of the respective services from overlapping with each other and can provide one service without stopping another service.

Abstract: Disclosed herein is a built-up type box-shaped steel column for filling concrete therein, that can be formed easily and economically in a built-up scheme by using ?-beams and steel plates, and a method for manufacturing the same that includes bonding a steel plate at the inner surface of a ?-shapes during a process of making a built-up type box-shaped steel column, thereby having a good resistance against a lateral pressure of concrete filled in the steel column and preventing the bonded portion from being exposed to the outside to provide a better outer appearance. The built-up type box-shaped steel column for filling concrete therein, includes: a ?-shapes disposed at each of the four corners of a box-shaped steel column to be formed; and a steel plate disposed between the ?-shapes adjacent to each other for connecting the ?-shapes with each other.

Abstract: Localization and map building apparatus and method applicable to a mobile robot are provided. In an exemplary embodiment, a map building apparatus extracts a pattern of landmarks of the same kind and adjusts a landmark map using the extracted pattern when generating the landmark map for localization. Accordingly, since the landmark map is adjusted based on the pattern extracted on the basis of location information of each landmark, accuracy of localization and map building of the mobile robot can be improved.

Abstract: A display apparatus and method are provided. A first control unit of the display device controls operation of the display apparatus, receives image signals from the external device, and displays the image signals. A second control unit receives user commands input through an input unit which is mounted in the display apparatus, and receives the image signals from the external device. If an abnormal image signal is received from an external device, the first control unit enters power save mode, and the second control unit, enters stand-by mode. Accordingly, whether normal image signals are input can be determined using the second control unit which has entered power save mode, so that the display apparatus can reduce the amount of power consumed after the display apparatus goes into power save mode.

Abstract: Provided is an apparatus, method, and medium for allowing a mobile robot to simultaneously perform a cleaning process and a map-creating process. The apparatus includes a feature-map-creating unit creating a feature map for recognizing the position of a mobile robot; a path-map-creating unit creating a path map including a plurality of cells, each having information about whether an obstacle exists and path information, on the basis of information on the pose of the mobile robot that is obtained from the feature map; and a motion-control unit moving the mobile robot on the basis of the information about whether the obstacle exists and the path information.