Abstract: A display device comprises sub-pixels, a bank disposed on a substrate and disposed at a boundary between the sub-pixels, a wavelength control layer including wavelength conversion layers disposed in a region surrounded by the bank and a light transmitting layer disposed in the sub-pixels, a color filter layer disposed on the wavelength control layer, and light emitting element layers disposed between the substrate and the wavelength control layer, the light emitting layers including a light emitting element disposed in one of the sub-pixels, and connection electrodes connected to ends of the light emitting element. Each of the wavelength conversion layers contacts at least one of the connection electrodes.

Abstract: A positive electrode active material having improved resistance and lifetime characteristics The positive electrode active material represented by a following Formula 1: x[LiMnpNi(1-p-q-r)CoqM1rO2]·(1-x)[Li2MnsM2(1-s)O3], wherein: M1 and M2 are each independently one selected from Zr, Al, Re, V, Cr, Fe, Ga, Si, B, Ru, Ti, Nb, Mo, Mg, W, Na, or Pt; and 0.500<x<0.800, 0.450<p<0.650, 0?q?0.025, 0?r?0.100, and 0.900?s?1.000. The positive electrode active material is formed of polycrystal grains composed of secondary particles in which primary particles are aggregated. Additionally, a surface portion porosity, A (%) defined by a following Equation 1 is 1% to 30%: A (%)=[PA/SA]×100. A method for preparing the positive electrode active material, and a positive electrode and a lithium secondary battery which include the same.

Abstract: A display device includes a first barrier wall and a second barrier wall spaced from each other on a substrate; a first electrode on the first barrier wall and extending in a first direction; a second electrode on the second barrier wall and spaced from the first electrode in a second direction, the second electrode extending in the first direction; and light emitting elements between the first and second barrier walls and on the first electrode and the second electrode, wherein the first barrier wall includes a first portion and a second portion that is located further from the second barrier wall than the first portion is, and the second barrier wall includes a third portion opposing the first portion and a fourth portion that is located further from the first barrier wall than the third portion is.

Abstract: A transition metal hydroxide may be capable of use in a positive electrode active material having excellent capacity characteristics. The transition metal hydroxide includes polycrystalline particles composed of spherical secondary particles in which needle-shaped primary particles are aggregated, wherein the specific surface area measured by a nitrogen adsorption BET method is 23 m2/g to 43 m2/g, and the particle size distribution curve diffusion index of less than 0.7.

Abstract: A water purifier comprises: an RO filter comprising a non-filtering unit, a filtering unit for discharging purified water, and a reverse osmosis membrane for partitioning the non-filtering unit and the filtering unit and for purifying the raw water; a raw water storage unit; a purified water storage unit; a water storage tank comprising a separator membrane made of a non-permeable material so as to independently partition the raw water storage unit and the purified water storage unit and to have elasticity, the water storage tank being configured such that, when the raw water storage unit expands, the purified water storage unit contracts, and when the purified water storage unit expands, the raw water storage unit contracts; a flow channel for providing passages along which the raw water and the purified water flow; a valve unit comprising multiple valve modules; and a control device for controlling valve modules.

Abstract: A display device including a display area and a non-display area, an inorganic insulating layer disposed on a substrate, the inorganic insulating layer disposed in the display area and the non-display area, pixels disposed on the substrate and overlapping the inorganic insulating layer in a plan view, the pixels disposed in the display area, and an organic insulating layer disposed on the substrate and overlapping the inorganic insulating layer and the pixels in a plan view, the organic insulating layer disposed at least in the display area. The non-display area includes an organic layer-free area including at least one of a corner and an outer edge area of the display device. The organic insulating layer is disposed on a portion of the substrate so as to be disposed in an area except for the organic layer-free area.

Abstract: A display device comprises a substrate, a via layer disposed on the substrate, a first electrode and a second electrode disposed on the via layer and spaced apart from each other, a third electrode that overlaps a region between the first electrode and the second electrode in a thickness direction, and light-emitting elements disposed on the first electrode and the second electrode, wherein the third electrode overlaps portions of the first electrode and the second electrode in the thickness direction.

Abstract: According to one or more embodiments of the present disclosure, a display device including a first extension area and a second extension area, the display device including: a first electrode and a second electrode on a substrate and spaced from each other in a first direction; and a first light emitting element on the first electrode and the second electrode, wherein: the first extension area extends in the first direction and includes a separation area in which the first electrode is not located, and the second extension area extends in a second direction crossing the first direction, the second extension area being an area in which the first electrode and the second electrode are not located.

Abstract: A display device includes a display including scan lines, data lines, light emission control lines, and pixels connected thereto, a scan driver configured to sequentially provide scan signals to the scan lines, a data driver configured to provide data signals to the data lines, a light emitting driver configured to provide light emission control signals to the light emission control lines based on a light emission clock signal having pulses, and a timing controller configured to provide the light emission clock signal to the light emitting driver, to output the pulses of the light emission clock signal during a frame in a first mode, to mask at least one pulse of the pulses during a first period of the frame in a second mode, and to output at least another pulse of the pulses during a second period after the first period.

Abstract: The present invention relates to a method of preparing a cobalt-free manganese-rich positive electrode active material precursor with reduced or no surface impurities, a positive electrode active material precursor which prepared thereby to be free of impurities, such as manganese oxide, on its surface, and a method of preparing a positive electrode active material using the positive electrode active material precursor.

Abstract: A display device includes: sub-pixels including first and second electrodes extending in a first direction and spaced apart in a second direction and a plurality of light emitting elements on and electrically connected to the first and second electrodes; a bank layer extending around a region at where the light emitting elements are arranged; and a plurality of wavelength conversion layers and light transmitting layers in the region bounded by the bank layer. The sub-pixels include: a first sub-pixel including a first wavelength conversion layer overlapping the light emitting elements in the region bounded by the bank layer; and a second sub-pixel including a second wavelength conversion layer, a third wavelength conversion layer containing different wavelength conversion particles that the second wavelength conversion layer, and a first light transmitting layer, each of which overlaps some of the light emitting elements, in the region bounded by the bank layer.

Abstract: A wireless signal spectral analysis method using a multi-task learning-based spectral analysis learning model, the wireless signal spectral analysis method may be provided.

Abstract: A method of generating a dynamic curriculum control model according to an embodiment may include generating a basic curriculum based on a curriculum generation model built based on semi-supervised learning; generating reconstructed curricula based on the basic curriculum; pre-training a learning tendency estimation model that predicts an agent learning tendency pattern of a reinforcement learning model based on the reconstructed curricula; obtaining agent learning tendency information of the reinforcement learning model; and generating a dynamic curriculum control model that reflects the agent learning tendency information by fine-tuning the learning tendency estimation model using a transfer training technique.

Abstract: A display device includes: a display panel including a sub-pixel connected to a first sub-gate line and a second sub-gate line; a gate driver configured to supply a first sub-gate signal through the first sub-gate line and a second sub-gate signal through the second sub-gate line to the sub-pixel during a display scan period; and a voltage generator configured to provide an offset signal to the first sub-gate line during a self scan period in which supply of the second sub-gate signal is stopped.

Abstract: A deep reinforcement learning framework according to an embodiment may include a reinforcement learning environment that provides an environment with which an agent may interact; a policy network that learns an optimal policy through trial and error in which the agent selects an action based on a given state in the reinforcement learning environment and obtains a reward as a result of the action; a memory for reproduction that stores information about a state, action, reward, and next state generated by the agent interacting with the reinforcement learning environment; an extrinsic uncertainty recognition unit that determines extrinsic uncertainty based on the agent's metacognitive ability and detects a new state to provide an additional exploration reward; an intrinsic uncertainty recognition unit that evaluates intrinsic uncertainty of transactions generated by the policy network; an uncertainty data filtering unit that selects a transaction with high uncertainty based on an evaluation result of the intrins

Abstract: A positive electrode active material includes a lithium transition metal oxide and the positive electrode active material comprises cavities in a region within a distance of 0.3R or more from a center of the particle when the distance from the center of the particle to the surface is R. The positive electrode active material particles have a cavity ratio of 5-20%.

Abstract: A display device includes: a substrate; an anode electrode on the substrate; and a first voltage line between the substrate and the anode electrode and configured to receive a negative voltage, wherein in the first voltage line, a first portion overlapping the anode electrode has a width greater than a second portion not overlapping the anode electrode.

Abstract: A display device comprises a substrate, a via layer disposed on the substrate, a first electrode and a second electrode disposed on the via layer and spaced apart from each other, a third electrode that overlaps a region between the first electrode and the second electrode in a thickness direction, and light-emitting elements disposed on the first electrode and the second electrode, wherein the third electrode overlaps portions of the first electrode and the second electrode in the thickness direction.

Abstract: A link adaptation method in a wireless LAN (WLAN) system may be provided. The link adaptation method according to an embodiment of the present disclosure may include: receiving signals within a communication environment; classifying the signals and identifying each of the signals; analyzing a channel access characteristic of each of the signals; adjusting a communication parameter of a target signal for each channel based on a result of the analyzing.

Abstract: A display device includes a display area including a plurality of light emitting area including a first light emitting area, a second light emitting area, a third light emitting area, and a light blocking area disposed between adjacent ones of the plurality of light emitting areas, and a non-display area disposed adjacent to the display area, light emitting elements disposed on a substrate in each of the first light emitting area, the second light emitting area, and the third light emitting area, and a light conversion layer disposed on the light emitting elements. The light conversion layer includes a first wavelength conversion part disposed in the first light emitting area, a second wavelength conversion part disposed in the second light emitting area, a first light transmissive part disposed in the third light emitting area, and a bank disposed in the light blocking area. The non-display area is disposed on an edge of the display area.