Abstract: A display device including a display panel having a plurality of pixels, the display panel comprising a first display area having first resolution and a second display area having second resolution, the second resolution being lower than the first resolution, and a controller configured to generate display area information of each of the plurality of pixels, to blur an image that is displayed in the second display area based on the display area information, and to perform control such that the blurred image is displayed on the display panel.

Abstract: A cathode active material for a lithium secondary battery includes an active material particle. The active material particle includes an active material core including a lithium metal oxide, and a sulfur-containing coating and a metal-containing coating formed on the active material core. A charge transfer resistance (Rct) measured at 50% DOD (Depth of Discharge) by an individual contact of a measuring probe with the active material particle is 60 ?/cm2 or less.

Abstract: Disclosed is a method of controlling a display device displaying an image using a lens, the method including storing a lens distortion parameter for chromatic aberration correction, receiving image data, primarily calculating a distance between a center point and a current pixel, secondarily calculating a distortion correction weight in consideration of the distance, and outputting image data of the current pixel through calculation according to the calculated distortion correction weight without using the stored lens distortion parameter intactly.

Abstract: The present invention relates to a heat exchanger and a bypass valve used in the heat exchanger, which are provided in consideration of cooling/heating performance. An object of the present invention is to provide a heat exchanger, which adopts a variable path in consideration of cooling/heating performance to solve a problem in which cooling performance and heating performance vary depending on the number of paths, and a bypass valve used in the heat exchanger. More specifically, another object of the present invention is to provide a heat exchanger, which is designed to change the number of paths in consideration of cooling/heating performance so as to be optimized for performance in a cooling mode and performance in a heating mode, and a bypass valve used in the heat exchanger.

Abstract: A display driving method includes receiving an image; calculating a distance between a current point and a current pixel for a sub-pixel of the image; calculating a weight based on a parameter; and compensating for distortion in the image based on the weight. A color of the sub-pixel may include at least one of red, green, or blue, and the parameter may include at least one of a distance parameter, a distortion parameter, or a sub-pixel parameter.

Abstract: The cathode active material according to embodiments of the present invention includes a lithium composite oxide particle having a form of secondary particle in which a plurality of primary particle are aggregated, wherein the primary particles respectively include a lithium conduction pathway through which lithium ions are diffused. Wherein the primary particles include a first particle, and the first particle has an angle of 45° to 90° formed by a direction from a center of the first particle to a center of the lithium composite oxide particle and a direction of the lithium conduction pathway included in the first particle, wherein a ratio of the number of the first particles among the primary particles located on a surface of the lithium composite oxide particle is 20% or more.

Abstract: Disclosed is a display device including a display panel having a plurality of pixels, the display panel comprising a first display area having first resolution and a second display area having second resolution, the second resolution being lower than the first resolution, and a controller configured to generate display area information of each of the plurality of pixels, to blur an image that is displayed in the second display area based on the display area information, and to perform control such that the blurred image is displayed on the display panel.

Abstract: Disclosed is a display device including a display panel having a plurality of pixels, the display panel comprising a first display area having first resolution and a second display area having second resolution, the second resolution being lower than the first resolution, and a controller configured to generate display area information of each of the plurality of pixels, to blur an image that is displayed in the second display area based on the display area information, and to perform control such that the blurred image is displayed on the display panel.

Abstract: An apparatus for predicting atrial fibrillation (AF) operated by at least one processor includes an electrocardiogram (ECG) preprocessor configured to acquire individual ECG pairs measured at a certain period of time and generate a difference between the ECG pairs as input data for an artificial intelligence model, an artificial intelligence model configured to be trained to predict an onset-AF possibility from an ECG difference and output a probability of onset-AF predicted from the input data, and a prediction information provider configured to provide an AF prediction including the probability of onset-AF to a designated device.

Abstract: A cathode active material for a lithium secondary battery has a structure of a lithium-nickel-based metal oxide. A crystal size in a (104) plane defined by Equation 1 is less than 200 nm. A thickness of a TM slab measured by a Rietveld method in a crystal structure of a space group R-3m by an X-ray diffraction (XRD) analysis is 2.15 ? or less. A thickness of a Li slab thickness measured by the Rietveld method in the crystal structure of the space group R-3m by the XRD analysis is 2.585 ? or more.

Abstract: The cathode active material according to embodiments of the present invention includes a lithium composite oxide particle having a form of secondary particle in which a plurality of primary particle are aggregated, wherein the primary particles respectively include a lithium conduction pathway through which lithium ions are diffused. Wherein the primary particles include a first particle, and the first particle has an angle of 45° to 90° formed by a direction from a center of the first particle to a center of the lithium composite oxide particle and a direction of the lithium conduction pathway included in the first particle, wherein a ratio of the number of the first particles among the primary particles located on a surface of the lithium composite oxide particle is 20% or more.

Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes a lithium-transition metal composite oxide particle including a plurality of primary particles, and the lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.

Abstract: A cathode active material for a lithium secondary battery includes a lithium-aluminum-titanium oxide formed on a surface of a lithium metal oxide particle having a specific formula. The cathode active material may have an improved structural stability even in a high temperature condition.

Abstract: A cathode active material for a lithium secondary battery has a structure of a lithium-nickel-based metal oxide. A crystal size in a (104) plane defined by Equation 1 is less than 200 nm. A thickness of a TM slab measured by a Rietveld method in a crystal structure of a space group R-3m by an X-ray diffraction (XRD) analysis is 2.15 ? or less. A thickness of a Li slab thickness measured by the Rietveld method in the crystal structure of the space group R-3m by the XRD analysis is 2.585 ? or more.

Abstract: A method of manufacturing a cathode active material for a lithium secondary battery according to embodiments of the present invention includes performing a first heat treatment on a first mixture of a transition metal precursor and a lithium precursor at a first calcination temperature to obtain a preliminary lithium-transition metal composite oxide particle; and performing a second heat treatment on a second mixture obtained by adding the lithium precursor to the preliminary lithium-transition metal composite oxide particle at a second calcination temperature which is lower than the first calcination temperature to form a lithium-transition metal composite oxide particle.