Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a glycerol solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 1 bar to 10 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method, a supercritical hydrothermal synthesis method and a glycothermal synthesis method, a reaction may be performed under a relatively lower pressure. Thus, a high temperature/high pressure reactor is not necessary and process safety and economic feasibility may be secured. In addition, a lithium iron phosphate nanopowder having uniform particle size and effectively controlled particle size distribution may be easily prepared.

Abstract: A method of operating a display panel in which a plurality of decisions are generated by detecting transitions of a plurality of present pixel data included in a present frame image. A uniform dynamic capacitance compensation (DCC) is performed based on the plurality of decisions. A present grayscale of each of the plurality of present pixel data increases by a first compensation value, decreases by a second compensation value, or is maintained based on the uniform DCC.

Abstract: The present invention provides a positive electrode active material prepared using a preparation method including mixing lithium complex metal oxide particles with a nanosol of a ceramic-based ion conductor and heat treating the resultant to form a coating layer including the ceramic-based ion conductor on the lithium complex metal oxide particles, thereby forming a coating layer including a ceramic-based ion conductor to a uniform thickness on a lithium complex metal oxide particle surface, and as a result, capable of minimizing capacity decline and enhancing a lifespan property when used in a secondary battery, a method for preparing the same, and a lithium secondary battery including the same.

Abstract: A data driver includes first through n-th shift register units, first through n-th latch units, and first through n-th output buffer units. The first through n-th shift register units shift and store a plurality of image output from a timing controller. The first shift register unit includes first through m-th shift registers. The first through m-th shift registers shift and store first through m-th image data among the plurality of image data. The first through n-th latch units are connected to the first through n-th shift register units, respectively. The first latch unit includes first through m-th latches. The first through n-th output buffer units are connected to the first through n-th latch units, respectively. The first output buffer unit includes first through m-th output buffers. The first through n-th latch units sequentially latch the plurality of image data stored in the first through n-th shift register units.

Abstract: The present invention relates to a cathode active material including a lithium-containing transition metal oxide and two or more metal composite oxide layers selected from the group consisting of Chemical Formulae 1 to 3 which are coated on the surface of the lithium-containing transition metal oxide, a method of manufacturing the same, and a cathode for a secondary battery including the cathode active material, [Chemical Formula 1] M(C2H5O2)n [Chemical Formula 2] M(C6H(8-n)O7) [Chemical Formula 3] M(C6H(8-n)O7)(C2H5O2) (where M, as a metal desorbed from a metal precursor, represents at least one metal selected from the group consisting of Mg, Ca, Sr, Ba, Y, Ti, Zr, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co, Ir, Ni, Zn, Al, Ga, In, Si, Ge, Sn, La, and Ce, and n is an integer between 1 and 4).

Abstract: The present invention relates to a surface coated positive electrode active material, a preparation method thereof, and a lithium secondary battery including the same. More specifically, it relates to a positive electrode active material of which surface is coated with a nanofilm including polyimide (PI) and conductive nanoparticles, a preparation method thereof, and a lithium secondary battery including the same.

Abstract: The present invention provides a positive electrode active material prepared using a preparation method including mixing a precursor of a metal for a positive electrode active material with a nanosol of a ceramic-based ion conductor to adsorb the nanosol of the ceramic-based ion conductor on the precursor surface, and mixing the nanosol of the ceramic-based ion conductor-adsorbed precursor with a lithium raw material, and heat treating the resultant to prepare a positive electrode active material, and thereby having greatly increased structural stability by the lithium complex metal oxide present on the surface as a metal element forming the ceramic-based ion conductor being uniformly doped, and as a result, capable of significantly enhancing capacity, a rate property and a cycle property of a battery, a method for preparing the same, and a lithium secondary battery including the same.

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a triethanolamine solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 10 bar to 100 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method and a supercritical hydrothermal synthesis method, a reaction may be performed under a relatively lower pressure. When compared to a common glycothermal synthesis method, a lithium iron phosphate nanopowder having effectively controlled particle size and particle size distribution may be easily prepared.

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder coated with carbon, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a triethanolamine solvent, (b) putting the mixture solution into a reactor and reacting to prepare amorphous lithium iron phosphate nanoseed particle, and (c) heat treating the lithium iron phosphate nanoseed particle thus to prepare the lithium iron phosphate nanopowder coated with carbon on a portion or a whole of a surface of a particle, and a lithium iron phosphate nanopowder coated with carbon prepared by the above method. The lithium iron phosphate nanopowder coated with carbon having controlled particle size and particle size distribution may be prepared in a short time by performing two simple steps.

Abstract: The present disclosure relates to a composition for diagnosis of liver metastasis of colorectal cancer and the use thereof, and more particularly to a composition for diagnosis of liver metastasis of colorectal cancer, which comprises either a substance for measuring the mRNA level of CCL7 (Chemokine (C-C motif) ligand 7) gene or a substance for measuring the level of a protein which is encoded by the gene. According to the present disclosure, whether liver metastasis of colorectal cancer occurred can be diagnosed by measuring the mRNA expression level of the CCL7 gene or the expression level of the CCL7 protein, and the use of the composition comprising an inhibitor of CCL7 gene allows the treatment of colorectal cancer or the liver metastasis of colorectal cancer.

Abstract: A curved display device is provided. The curved display device includes: a curved display panel configured to have short sides and long sides; a printed circuit board (PCB) configured to provide signals for driving the curved display panel; and a flexible wiring board including a first portion, which is connected to a first area, a second portion, which is connected to the PCB, and a third portion, which is disposed between the first portion and the second portion and has curved sides, wherein a curvature radius of a first side of the curved sides differs from a curvature radius of a second side of the curved sides.

Abstract: A display apparatus includes a display panel which receives light to display an image, a backlight unit, which includes a light source providing the light to the display panel, and a support member supporting the display panel, at least one protrusion part disposed on a side surface of the display panel and protruding from the side surface of the display panel, and a coupling member disposed on the at least one protrusion part and coupled to the support member, where the display panel is fixed to the support member by the coupling member.

Abstract: The present invention relates to a surface coated positive electrode active material, a preparation method thereof, and a lithium secondary battery including the same. More specifically, it relates to a positive electrode active material of which surface is coated with a nanofilm including polyimide (PI) and carbon black, a preparation method thereof, and a lithium secondary battery including the same. The positive electrode active material of which surface is coated with the nanofilm according to the present invention is capable of preventing direct contact of the positive electrode active material with an electrolyte thereby suppressing a side reaction between the positive electrode active material and the electrolyte, and as a result, a lifespan property of a lithium secondary battery using a positive electrode including the same may be significantly improved, and particularly, a lifespan property and conductivity are capable of being enhanced under a high temperature and high voltage condition.

Abstract: The present invention relates to a surface coated positive electrode active material, a preparation method thereof, and a lithium secondary battery including the same. More specifically, it relates to a positive electrode active material of which surface is coated with a nanofilm including polyimide (PI) and conductive nanoparticles, a preparation method thereof, and a lithium secondary battery including the same.

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a reaction solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 10 to 100 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method and a supercritical hydrothermal synthesis method, a reaction may be performed under a relatively lower pressure. When compared to a common glycothermal synthesis method, a lithium iron phosphate nanopowder having effectively controlled particle size and particle size distribution may be easily prepared.

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder coated with carbon, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a reaction solvent, (b) putting the mixture solution into a reactor and reacting to prepare amorphous lithium iron phosphate nanoseed particle, and (c) heat treating the lithium iron phosphate nanoseed particle thus to prepare the lithium iron phosphate nanopowder coated with carbon on a portion or a whole of a surface of a particle, and a lithium iron phosphate nanopowder coated with carbon prepared by the above method. A lithium secondary battery including the lithium iron phosphate nanopowder coated with carbon thus prepared as a cathode active material has good capacity and stability.

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a reaction solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 1 to 10 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method, a supercritical hydrothermal synthesis method and a glycothermal synthesis method, a reaction may be performed under a relatively lower pressure. Thus, a high temperature/high pressure reactor is not necessary and process safety and economic feasibility may be secured. In addition, a lithium iron phosphate nanopowder having uniform particle size and effectively controlled particle size distribution may be easily prepared.

Abstract: A random number generating includes a light source to emit a luminous flux having light intensity distribution symmetrical about a center axis, and a plurality of single-photon detectors arranged at an equal radial distance from an extending line of the central axis of the light source to generate a bit value of either 0 or 1 according to whether a photon is detected or not.

Abstract: The present invention relates to a surface-coated positive electrode active material including: a positive electrode active material; and a nanofilm coated on the surface of the positive electrode active material, wherein the nanofilm includes polyimide (PI) and a fibrous carbon material, and a method of preparing the same. According to an embodiment of the present invention, when the surface of a positive electrode active material is coated with a nanofilm including polyamide and a fibrous carbon material, a direct contact between the positive electrode active material and an electrolytic solution is prevented, and thus side reactions between the positive electrode active material and the electrolytic solution may be inhibited. Therefore, cycle life characteristics of a secondary battery may be significantly improved. Particularly under a high-temperature and high-voltage condition, cycle life characteristics and conductivity may be improved.

Abstract: A liquid crystal display device includes m gate lines, n data lines, and m×n pixels each connected to a corresponding gate line, each connected to a corresponding data line, and each including a first sub-pixel and a second sub-pixel, wherein the first sub-pixel includes a first liquid crystal capacitor, and a first transistor configured to receive a data signal from the corresponding data line, and configured to apply the data signal to the first liquid crystal capacitor, and wherein the second sub-pixel includes a second liquid crystal capacitor, a second transistor configured to apply the data signal to the second liquid crystal capacitor, and a third transistor configured to apply a storage voltage, which is configured to swing between a first electric potential level and a second electric potential level that is greater than the first electric potential level, to the second liquid crystal capacitor.