Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure or by comprising a specific combination of compounds according to the present disclosure as a plurality of host materials, it is possible to produce an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.

Abstract: An electronic device including a touch-enabled display module configured to display a plurality of windows according to a multi-window mode; and a control module configured to displaying on the touch screen a first application window and a second application window according to the multi-window mode, alter the first application window in response to a touchscreen input received via the touch-enabled display, and automatically alter the second application window in response to the alteration of the first application window.

Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.

Abstract: Provided is an electrical dust-collecting filter manufacturing method and an electrical dust-collecting filter. The method includes the steps of: preparing a frame body, a dust-collecting electrode, a discharge electrode, and a discharge frame; assembling the dust-collecting electrode into an assembly hole of the frame body; connecting the discharge frame to the frame body via an insulating member; and arranging the discharge electrode in an axial direction inside the dust-collecting electrode via the discharge frame and fixing the same. The dust-collecting electrode assembling step includes: temporarily elastically deforming the dust-collecting electrode in the radial direction and inserting the same into the assembly hole of the frame body; and pressurizing end parts of both ends of the dust collecting electrode, which protrude out of a plate member when fitted into the assembly hole, in the axial direction such that the end parts are compressed against the surface of the plate member.

Abstract: Provided is an electrical dust-collecting filter manufacturing method and an electrical dust-collecting filter. The method includes the steps of: preparing a frame body, a dust-collecting electrode, a discharge electrode, and a discharge frame; assembling the dust-collecting electrode into an assembly hole of the frame body; connecting the discharge frame to the frame body via an insulating member; and arranging the discharge electrode in an axial direction inside the dust-collecting electrode via the discharge frame and fixing the same. The dust-collecting electrode assembling step includes: temporarily elastically deforming the dust-collecting electrode in the radial direction and inserting the same into the assembly hole of the frame body; and pressurizing end parts of both ends of the dust collecting electrode, which protrude out of a plate member when fitted into the assembly hole, in the axial direction such that the end parts are compressed against the surface of the plate member.

Abstract: Disclosed is a method of manufacturing a multilayered tube, including: preparing an outer tube, an inner tube having an outer diameter of 95˜98% of an inner diameter of the outer tube, and dies with a shaping void having a diameter of 100.20˜100.

Abstract: Disclosed is a method of manufacturing a multilayered tube, including: preparing an outer tube, an inner tube having an outer diameter of 95˜98% of an inner diameter of the outer tube, and dies with a shaping void having a diameter of 100.20˜100.

Abstract: The present invention relates to an air purification apparatus designed to sterilize contaminated air, eliminate bad smells and decompose harmful substances, and more particularly, to a photocatalyst device using a porous pipe, which can improve photocatalyst reactions with ultraviolet light, and an air purification apparatus using the photocatalyst device. The photocatalyst device of the present invention comprises a porous pipe having a plurality of holes bored therethrough, the porous pipe being capable of receiving an ultraviolet lamp therein; and a photocatalyst pouch consisting of a glass fiber coated with a photocatalyst, the photocatalyst pouch configured to surround the porous pipe.

Abstract: An electronic settlement system/method includes a keyboard having multiple card identification and charging functions. The electronic settlement may include charges with a smart card, an RF card, or a magnetic card using the keyboard with an electronic cash management server via a web server interlocked with a PC. A settlement approval step may be included to access the electronic commerce server via a web server through a line separate from the electronic cash management server for choosing an item and a settlement type. Scanning the charged card according tithe settlement type using the keyboard may be employed for getting a settlement approval and confirmation. A safe and convenient method/system is provided using a keyboard to identify magnetic cards, read/write smart cards and RF cards. A user PC is coupled with the keyboard through electronic cash management servers, financial settlement institute servers, and/or electronic commerce servers on the Internet.

Abstract: An electronic settlement system/method includes a keyboard having multiple card identification and charging functions. The electronic settlement may include charges with a smart card, an RF card, or a magnetic card using the keyboard with an electronic cash management server via a web server interlocked with a PC. A settlement approval step may be included to access the electronic commerce server via a web server through a line separate from the electronic cash management server for choosing an item and a settlement type. Scanning the charged card according tithe settlement type using the keyboard may be employed for getting a settlement approval and confirmation. A safe and convenient method/system is provided using a keyboard to identify magnetic cards, read/write smart cards and RF cards. A user PC is coupled with the keyboard through electronic cash management servers, financial settlement institute servers, and/or electronic commerce servers on the Internet.