Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.

Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.

Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.

Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1 and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound of the present disclosure, it is possible to provide an organic electroluminescent device having lower operating voltage, higher luminous efficiency and/or longer lifespan properties as compared with a conventional organic electroluminescent device.

Abstract: A system and method for operating a smart service robot includes: an integrated control server for storing and managing a plurality of service applications and providing a relevant service application according to a service application request from an intelligent service robot; and the intelligent service robot for requesting a specific service application from the integrated control server and downloading the application in order to provide a corresponding service. Accordingly, when a user using the intelligent service robot needs an application which is related to the operation of the intelligent service robot and which is for a specific purpose, the application for the specific purpose is easily downloaded online in order to be applied to the intelligent service robot of the user. Thus, the services that the robot provides are optimized for certain purposes and used.

Abstract: The present invention relates to multilingual speech system and method, wherein a two-dimensional or three-dimensional character speaks to express messages in multiple languages according to surroundings whereby messages such as consultations or guide services or the like can be precisely delivered through the character. To accomplish the objective, the multilingual speech system of the character according to the present invention includes a context-aware unit to recognize the surroundings; a conversation selection unit to select spoken words in accordance with the recognized surroundings; a Unicode multilingual database in which the spoken words are stored in Unicode-based multiple languages according to languages of respective nations; a behavior expression unit to express behaviors in accordance with the selected spoken words; and a work processing unit to synchronize and express the selected spoken words and the behaviors according to the spoken words.

Abstract: The present invention relates to a system and method for operating a smart service robot. The system comprises: an integrated control server for storing and managing a plurality of service applications and providing a relevant service application according to a service application request from an intelligent service robot; and the intelligent service robot for requesting a specific service application from the integrated control server and downloading the application in order to provide a corresponding service. Accordingly, according to the present invention, when a user using the intelligent service robot needs an application which is related to the operation of the intelligent service robot and which is for a specific purpose, the application for the specific purpose may be easily downloaded online in order to be applied to the intelligent service robot of the user. Thus, the services that the robot provides may be optimized for certain purposes and used.

Abstract: A laser processing apparatus includes a stage unit moving a substrate having a plurality of work sections along longitudinal and lateral axes and rotating the substrate at a predetermined angle about a rotational axis, a laser beam oscillating unit oscillating laser beams to process holes in the substrate, a camera unit taking and providing an image of each of the work sections, and a controller correcting a processing location data using the image taken by the camera unit to allow the laser oscillating unit and the scanner unit to accurately process the holes in the substrate.

Abstract: An inputting device, used for electronic devices, for example, is disclosed. The inputting device in accordance with an embodiment of the present invention includes a case, which has a through-hole, a center key, which is exposed externally through the through-hole and is movable to any directions on a plane, an operating member, which is fixed to the case and supports the center key and returns the center key by elastic force to a center of the through-hole if the center key is moved from the center of the through-hole, a magnet, which moves with the center key on a plane, and a sensing element, which senses a movement of the magnet. With the input method of the present invention, not only is the operation easier, but also the entire thickness of a device can be reduced.

Abstract: A laser processing apparatus includes a stage unit moving a substrate having a plurality of work sections along longitudinal and lateral axes and rotating the substrate at a predetermined angle about a rotational axis, a laser beam oscillating unit oscillating laser beams to process holes in the substrate, a camera unit taking and providing an image of each of the work sections, and a controller correcting a processing location data using the image taken by the camera unit to allow the laser oscillating unit and the scanner unit to accurately process the holes in the substrate.

Abstract: An inputting device, used for electronic devices, for example, is disclosed. The inputting device in accordance with an embodiment of the present invention includes a case, which has a through-hole, a center key, which is exposed externally through the through-hole and is movable to any directions on a plane, an operating member, which is fixed to the case and supports the center key and returns the center key by elastic force to a center of the through-hole if the center key is moved from the center of the through-hole, a magnet, which moves with the center key on a plane, and a sensing element, which senses a movement of the magnet. With the input method of the present invention, not only is the operation easier, but also the entire thickness of a device can be reduced.