Abstract: A display device includes a substrate having a display area and a pad area. A gate conductive layer disposed on the substrate includes a gate conductive metal layer and a gate capping layer. The gate conductive layer forms a gate electrode in the display area and a wire pad in the pad area that is exposed by a pad opening. An interlayer insulating film disposed on the gate conductive layer covers the gate electrode. A data conductive layer disposed on the interlayer insulating film in the display area includes source and drain electrodes. A passivation layer disposed on the data conductive layer covers the source and drain electrodes. A via layer is disposed on the passivation layer. A pixel electrode is disposed on the via layer. The pixel electrode is connected to the source electrode through a contact hole penetrating the via layer and the passivation layer.

Abstract: The present invention provides a composite conductive material having excellent dispersibility and a method for producing the same. In an embodiment, the method includes supporting a catalyst on surfaces of carbon particles; heat treating the catalyst in a helium or hydrogen atmosphere such that the catalyst penetrate the surfaces of the carbon particles and are impregnated beneath the surfaces of the carbon particles at a contact point between the carbon particles and the impregnated catalyst; and heating the carbon particles having the impregnated catalyst disposed therein in the presence of a source gas to grow carbon nanofibers from the impregnated catalyst to form a composite conductive material, wherein the source gas contains a carbon source, and wherein the carbon nanofibers extend from the contact point to above the surfaces of the carbon particles.

Abstract: An electrode includes an electrode active material, wherein the electrode active material layer includes an electrode active material, polyvinylidene fluoride, and a conductive agent, wherein the conductive agent includes a carbon nanotube structure in which 2 to 5,000 single-walled carbon nanotube units are bonded to each other, and the carbon nanotube structure is included in an amount of 0.01 wt % to 0.5 wt % in the electrode active material layer. A secondary battery including the same, and a method of preparing the electrode are also provided.

Abstract: A positive electrode active material includes a core and a coating layer disposed on the core, wherein the core includes Li1+xMO2+y, wherein M is at least one element selected from the group consisting of nickel (Ni), cobalt (Co), and copper (Cu), and 1?x?5 and 0?y?2, and the coating layer includes carbon-based particles, wherein the carbon-based particle includes a structure in which a plurality of graphene sheets are connected, the carbon-based particle has an oxygen content of 1 wt % or more in the carbon-based particle, and the carbon-based particle has a D/G peak ratio of 1.55 or less during Raman spectrum measurement. A method of preparing the positive electrode active material, a positive electrode including the positive electrode active material, and a secondary battery including the positive electrode are also provided.

Abstract: A conductive agent, a slurry for forming an electrode, the slurry including the same, an electrode manufactured using the same, and a lithium secondary battery are provided. The conductive agent includes graphene flakes the maximum peak of which is observed in a range of 24.5° to 26° of 2? in a data graph obtained by a X-Ray Diffraction (XRD) analysis, wherein the aspect ratio of the average lateral size of the surfaces of the graphene flakes to the average thickness of the graphene flakes in a direction perpendicular to surfaces of the graphene flakes is 500 to 50,000.

Abstract: A conductive material, and a method for preparing the same are provided. The conductive material has a structure where a plurality of graphene sheets are interconnected, wherein an oxygen content is 1 wt % or higher based on the total weight of the conductive material, and a D/G peak ratio is 2.0 or less when the Raman spectrum is measured.

Abstract: The present invention relates to a novel ligand compound represented by Formula 1 and a novel transition metal compound represented by Formula 2, and the novel ligand compound and transition metal compound according to the present invention has high comonomer incorporation effect in the preparation of an olefinic polymer having a low density and a high molecular weight, and thus can be usefully used as a catalyst for a polymerization reaction.

Abstract: The present invention provides a composite conductive material having excellent dispersibility and a method for producing the same. In an embodiment, the method includes supporting a catalyst on surfaces of carbon particles; heat treating the catalyst in a helium or hydrogen atmosphere such that the catalyst penetrate the surfaces of the carbon particles and are impregnated beneath the surfaces of the carbon particles at a contact point between the carbon particles and the impregnated catalyst; and heating the carbon particles having the impregnated catalyst disposed therein in the presence of a source gas to grow carbon nanofibers from the impregnated catalyst to form a composite conductive material, wherein the source gas contains a carbon source, and wherein the carbon nanofibers extend from the contact point to above the surfaces of the carbon particles.

Abstract: The present invention relates to a novel ligand compound represented by Formula 1 and a novel transition metal compound represented by Formula 2, and the novel ligand compound and transition metal compound according to the present invention has high comonomer incorporation effect in the preparation of an olefinic polymer having a low density and a high molecular weight, and thus can be usefully used as a catalyst for a polymerization reaction.

Abstract: The present invention relates to a polypropylene-based resin composition which exhibits mechanical properties such as excellent strength, etc. and has an improved impact strength, and to a molded article including the same. The olefin-based copolymer includes: a polypropylene-based resin; and an olefin-based copolymer, wherein the olefin-based copolymer includes polymeric fractions defined by three different peaks at a given temperature when analyzed by cross-fractionation chromatography (CFC).

Abstract: There are provided a method of preparing an irreversible additive in which a content of a Li-based by-product such as unreacted lithium oxide generated in a process of preparing lithium nickel-based oxide is decreased, which may significantly reduce gelation of a composition including the irreversible additive, a cathode material including the irreversible additive prepared by the same, and a lithium secondary battery including the cathode material.

Abstract: Provided is a copper etchant composition including: a first organic acid containing one or more amine groups, and one or more carboxylic acid groups; a second organic acid; an amine compound; hydrogen peroxide; and a phosphate compound, which has the increased number of processing sheets and etching uniformity, when etching copper.

Abstract: A surface of a LiCoO2-based positive electrode active material to have a rock salt crystal structure is provided. Specifically, a positive electrode active material for a lithium rechargeable battery is provided, including: a core particle containing lithium cobalt oxide doped with aluminum (Al); and a coating layer positioned on a surface of the core particle and containing a cobalt(Co)-based compound having a rock salt crystal structure. A method of producing the positive electrode active material is also provided using a solid-phase method. The positive electrode active material can be applied to a positive electrode, lithium rechargeable battery, battery module, battery pack, and the like.

Abstract: The present invention relates to a novel ligand compound represented by Formula 1 and a novel transition metal compound represented by Formula 2, and the novel ligand compound and transition metal compound according to the present invention has high comonomer incorporation effect in the preparation of an olefinic polymer having a low density and a high molecular weight, and thus can be usefully used as a catalyst for a polymerization reaction.

Abstract: The present invention relates to a method of manufacturing a hyaluronate film and a hyaluronate film manufactured thereby, and more particularly to a method of manufacturing a hyaluronate film through a solvent-casting process or using an automatic film applicator that facilitates mass production and to a hyaluronate film manufactured thereby, which is useful as a mask pack for cosmetics, a patch for medicaments and medical devices, a film-type adhesion inhibitor, etc. Unlike conventional liquid products, the hyaluronate film according to the present invention has a dry surface and thus entails no concern about microbial contamination, is easy to produce/manage/distribute/use, and has superior mechanical properties, whereby it can be utilized for various applications such as packs, patches, artificial skin and the like for cosmetics, medicaments, and medical devices.

Abstract: An electrode for a lithium secondary battery includes a current collector, primer layer formed on a side of the current collector and includes a first conductive agent, a first binder and a first dispersant. Further, an active material layer is formed on a side of the primer layer disposed opposite to the current collector and includes an active material. Additionally, the lithium secondary battery includes a positive electrode, a negative electrode or both, a separator disposed between the positive electrode and the negative electrode and an electrolyte. The structural stability and adhesion of the electrode is improved, a ratio of a binder in the active material layer is reduced and the internal resistance is reduced.

Abstract: A display device is provided. The display device includes a first base substrate, a gate line on the first base substrate and extending in a first direction, a data line disposed on the first base substrate, insulated from the gate line, and extending in a second direction, which crosses the first direction, a switch on the first base substrate and electrically connected to the gate line and the data line, an insulating layer on the switch, a first electrode on the insulating layer, a light-shielding conductive layer directly contacting the first electrode and overlapping the switch, and a second electrode insulated from the first electrode and the light-shielding conductive layer, at least partially overlapping the first electrode, and electrically connected to the switch.

Abstract: An embodiment comprises: a substrate having a chip mounting region; first and second wiring layers disposed on the substrate around the chip mounting region so as to be spaced apart from each other; and a plurality of light emitting chips disposed on the chip mounting region, wherein the first wiring layer comprises a first wiring pattern disposed at one side of a reference line and having a first concave part, and a first extending pattern extending from the first wiring pattern to the other side of the reference line, the second wiring layer comprises a second wiring pattern disposed at the other side of the reference line and having a second concave part, and a second extending pattern extending from the second wiring pattern to one side of the reference line, and the reference line is a straight line passing through the center of the chip mounting region.

Abstract: Disclosed are a cathode additive of a lithium secondary battery which may have improved crystallinity and a method for preparing the same. The cathode additive may be provided to suppress generation of oxygen gas or gelation of an electrode slurry composition, which may occur due to reduction in the content of residual by-products containing lithium oxide.

Abstract: A display device is provided. The display device includes: a first substrate that comprises a first base substrate, an insulating layer located on the first base substrate, and a barrier layer located on the insulating layer; a second substrate that faces the first substrate; a liquid crystal layer that is located between the first substrate and the second substrate; and a first spacer that is located between the first substrate and the second substrate and is in contact with the first substrate, wherein the first substrate further comprises a second spacer that is located on the barrier layer and overlaps with the first spacer.