Abstract: Provided is a positive electrode active material which includes an inner region that is a region from the center of the positive electrode active material particle to R/2, and an outer region that is a region from R/2 to the surface of the positive electrode active material particle, wherein R is a distance from the center of the positive electrode active material particle to the surface thereof. The positive electrode active material further includes 25% to 80% of crystallites C with respect to a total number of crystallites in the outer region. The crystallites C have a high crystallite long-axis orientation degree of 0.5 to 1 and a low crystallite c-axis orientation degree less than 0.5. Thus, the positive electrode active material has high capacity characteristics and a small amount of gas generated.

Abstract: Provided is a positive electrode active material including a plurality of crystallites A, wherein the plurality of crystallites A has a crystallite long-axis orientation degree DoA represented by Equation 1 below is 0.5 to 1, and a crystallite c-axis orientation degree represented by a cross product value of a c-axis rotation vector Rc of a crystal lattice of a crystallite obtained by electron backscatter diffraction (EBSD) analysis and a position unit vector P? of the crystallite is 0.5 to 1. A proportion of the plurality of crystallites A is 25% to 80% with respect to a total number of crystallites in a cross-section of a positive electrode active material. Further provided is a positive electrode and a lithium secondary battery including the positive electrode active material.

Abstract: The present invention relates to a positive electrode active material having improved capacity characteristic and life cycle characteristic, and a method of preparing the same, and specifically, to a positive electrode active material for a lithium secondary battery, wherein the positive electrode active material comprises a compound represented by Formula 1 above and allowing reversible intercalation/deintercalation of lithium, and from a crystal structure analysis of the positive electrode active material by a Rietveld method in which space group R-3m is used in a crystal structure model on the basis of an X-ray diffraction analysis, the thickness of MO slab is 2.1275 ? or less, the thickness of inter slab is 2.59 ? or greater, and the cation mixing ratio between Li and Ni is 0.5% or less, and a method of preparing the same.

Abstract: Provided is a positive electrode active material which includes an inner region that is a region from the center of the positive electrode active material particle to R/2; and an outer region that is a region from R/2 to the surface of the positive electrode active material particle, wherein R is a distance from the center of the positive electrode active material particle to the surface thereof. The positive electrode active material further includes 30% to 80% of crystallites A with respect to a total number of crystallites in the outer region of the positive electrode active material, the crystallites A having high crystallite long-axis orientation degree and crystallite c-axis orientation degree. Thus, the positive electrode active material can achieve excellent capacity characteristics and service life characteristics.

Abstract: A display device is provided. The display device according to an embodiment includes a display, a sensor configured to detect a distance between a user and the display device, a sub-processor configured to receive a detection signal from the sensor based on the user existing in a first area among a plurality of areas divided according to a distance from the display device, and a processor configured to, based on the sub-processor receiving the detection signal from the sensor in a state where the sensor and the sub-processor are activated, be activated by the sub-processor and update a content, and based on the user being determined to exist in a second area among the plurality of areas on a basis of a distance between the user and the display device, activate the display in an inactivation state and display the updated content through the activated display.

Abstract: A display device is provided. The display device according to an embodiment includes a display, a sensor configured to detect a distance between a user and the display device, a sub-processor configured to receive a detection signal from the sensor based on the user existing in a first area among a plurality of areas divided according to a distance from the display device, and a processor configured to, based on the sub-processor receiving the detection signal from the sensor in a state where the sensor and the sub-processor are activated, be activated by the sub-processor and update a content, and based on the user being determined to exist in a second area among the plurality of areas on a basis of a distance between the user and the display device, activate the display in an inactivation state and display the updated content through the activated display.

Abstract: Disclosed are an electronic apparatus and method of controlling the electronic apparatus. The electronic apparatus may comprises a touch input receiver comprising a touch area configured to receive a touch input; and a controller configured to, based on a first touch input corresponding to one of the plurality of touch positions designated within the touch area being received, control the electronic apparatus to perform an operation corresponding to the one touch position, and based on a second touch input of a motion that moves from a first touch position to a second touch position among the plurality of touch positions being received, control the electronic apparatus to perform an operation corresponding to the motion of the second touch input.

Abstract: Disclosed are a display apparatus and a control method thereof, the display apparatus including: a signal receiver configured to receive a video signal; a signal processor configured to process the received video signal; a display configured to display a first image based on the processed video signal; and a controller configured to control the signal processor to increase grayscale of the video signal corresponding to the first image if ambient illumination is equal to or higher than an illumination threshold and grayscale of the first image is equal to or lower than a first grayscale threshold, and to control the display to display a second image based on a video signal increased in the grayscale. Thus, it is possible to minimize and/or reduce glare due to optical reflectivity.

Abstract: A display apparatus includes a display, a sensor configured to sense a user, and a processor configured to control, based on the sensed values of the sensor, the display to operate in one mode among a first mode for outputting information-providing content on the display, a second mode for providing a mirror function with the display, and a third mode for providing UI screen in which user interaction is performed.

Abstract: Disclosed are a display apparatus and a control method thereof, the display apparatus including: a signal receiver configured to receive a video signal; a signal processor configured to process the received video signal; a display configured to display a first image based on the processed video signal; and a controller configured to control the signal processor to increase grayscale of the video signal corresponding to the first image if ambient illumination is equal to or higher than an illumination threshold and grayscale of the first image is equal to or lower than a first grayscale threshold, and to control the display to display a second image based on a video signal increased in the grayscale. Thus, it is possible to minimize and/or reduce glare due to optical reflectivity.