Abstract: The present invention relates to a novel polycyclic compound employed in an organic layer of an organoelectro luminescent device, wherein the organoelectro luminescent device employing the compound according to the present invention has remarkably improved luminous efficiency and a long lifespan. According to the present invention, it is possible to implement a highly efficient and long-life organoelectro luminescent device that can be effectively applied to various display devices.

Abstract: A display device includes a semiconductor layer positioned on a substrate and including a driving transistor and a plurality of transistors; a gate conductive layer positioned on the semiconductor layer; and a data conductive layer positioned on the gate conductive layer. The driving transistor has a linear shape in which a plurality of grooves are formed.

Abstract: A notching apparatus relates to a notching apparatus for notching an electrode sheet used in a secondary battery, the notching apparatus including: an ablation laser source unit configured to radiate ablation laser that performs an ablation operation on the electrode sheet; a notching laser source unit configured to radiate notching laser, wherein the notching laser is emitted to the place, in which the ablation operation has been performed by the ablation laser, to notch the electrode sheet; and an integral scanner unit to which the ablation laser radiated from the ablation laser source unit and the notching laser radiated from the notching laser source unit are incident. The integral scanner unit allows the ablation laser and the notching laser to be emitted to positions adjacent to each other on the electrode sheet.

Abstract: An apparatus for manufacturing a unit cell may include a first separator unwinder from which a first separator sheet is unwound, a first magazine in which a plurality of first electrodes are loaded, a first transfer part which picks up the first electrodes from the first magazine and seats the first electrodes on the first separator sheet, and a second separator unwinder from which a second separator sheet is unwound so as to cover the first electrodes. The apparatus may further include a vision sensor which detects the locations of the first electrodes, a second magazine in which a plurality of second electrodes are loaded, and a second transfer part which picks up the second electrodes from the second magazine and seats the second electrodes on the second separator sheet so as to correspond to the locations of the first electrodes, respectively.

Abstract: The present invention relates to a method for manufacturing a secondary battery and an apparatus for manufacturing a secondary battery. The method for manufacturing the secondary battery according to the present invention comprises: an electrode supply process of supplying an electrode through an electrode supply part; a first inspection process of detecting the supplied electrode to distinguish a normal electrode portion and an abnormal electrode portion through the first inspection part; and a notching process of notching the electrode, which is subjected to the first inspection process, in the notching part, wherein the notching process perform the notching through a laser so that the normal electrode portion and the abnormal electrode portion, which are detected in the first inspection process, are divided from each other.

Abstract: Discussed is an electrode manufacturing method, in which laser ablation is performed prior to cutting an electrode sheet so that a processing speed of cutting the electrode sheet by using laser is increased, and an electrode forming device for performing same.

Abstract: Disclosed are a tight-contact jig for secondary battery tab laser welding including an upper tight-contact jig including a ring-shaped spray portion capable of performing surface spray in order to inhibit deterioration in weld quality due to reaction with hydrogen or oxygen in air at the time of laser welding for forming an electrode terminal and to inhibit the occurrence of short circuit due to deposition of spatter generated at the time of welding and a welding method.

Abstract: Discussed is a method of manufacturing an electrode, the method including applying an electrode active material to a portion of an electrode collector, the electrode collector having a non-coating portion that is not coated with the electrode active material, and an active material coating portion that is coated with the electrode active material; setting an ablation line on at least one end of the active material coating portion that is contacting the non-coating portion; performing ablation on a boundary line between the non-coating portion and the active material coating portion and an area surrounded by the ablation line while maintaining a state in which the electrode active material is applied; setting a notching line on an ablation area of the electrode collector on which the ablation is performed; and performing notching by using the notching line as a boundary.

Abstract: A laser machining nozzle includes: a nozzle body coupled to a machining head; and a flow path formed through the nozzle body in a longitudinal axis of the nozzle body to allow a machining-assist gas to be injected toward a workpiece therethrough while a laser beam is emitted toward the workpiece, wherein the flow path comprises a first flow path formed in a flow direction of the machining-assist gas and generating a supersonic flow of the machining-assist gas; a second flow path connected to the first flow path in the flow direction of the machining-assist gas and expanding a volume of the machining-assist gas having passed through the first flow path; and a flow path boundary defining a boundary between the first flow path and the second flow path.

Abstract: A laser machining nozzle includes: a nozzle body coupled to a machining head; and a flow path formed through the nozzle body in a longitudinal axis of the nozzle body to allow a machining-assist gas to be injected toward a workpiece therethrough while a laser beam is emitted toward the workpiece, wherein the flow path comprises a first flow path formed in a flow direction of the machining-assist gas and generating a supersonic flow of the machining-assist gas; a second flow path connected to the first flow path in the flow direction of the machining-assist gas and expanding a volume of the machining-assist gas having passed through the first flow path; and a flow path boundary defining a boundary between the first flow path and the second flow path.

Abstract: Disclosed is an electrode assembly formed in a structure in which a plurality of positive electrodes with bundled positive electrode tabs and a plurality of negative electrodes with bundled negative electrode tabs are alternately stacked, each of the bundles of electrode tabs includes a first surface connected to a corresponding electrode lead and a second surface opposite the first surface, the first surface includes a plurality of first pressure welding portions and a plurality of first non-pressure, the second surface includes a plurality of second pressure welding portions and a plurality of second non-pressure welding portions The area of one of the first pressure welding portions is less than the area of one of the second pressure welding portions.

Abstract: One or more embodiments of the present invention describe a novel use of capsanthin and/or fatty-acyl ester of capsanthin to inhibit both the differentiation of pre-adipocytes to adipocytes and the accumulation of fat in the adipocytes. One or more embodiments of the present invention are based on findings that capsanthin contained in some natural products such as red pepper, paprika, bell pepper, etc. have anti-adipogenic activity by inhibiting both the differentiation of pre-adipocyte into adipocyte and the accumulation of fat in adipocytes, Therefore, this findings provide a functional food and a pharmaceutical composition wherein capsanthins and the extract of any natural products containing the same components are included in the functional food and the pharmaceutical composition, to offer obesity prevention and/or treatment effects.