Abstract: A thin film transistor substrate is provided, which comprises a substrate, a first thin film transistor on the substrate, and a second thin film transistor on the substrate, wherein the first thin film transistor includes a first active layer having a first channel portion, a first gate insulating layer on the first active layer, a first gate electrode on the first gate insulating layer, a first source electrode connected to the first active layer, and a first drain electrode spaced apart from the first source electrode and connected to the first active layer, the second thin film transistor includes a conductive material layer on the substrate, a first buffer layer on the conductive material layer, a second active layer having a second channel portion on the first buffer layer, a second gate insulating layer on the second active layer, a second gate electrode on the second gate insulating layer, a second source electrode connected to the second active layer, and a second drain electrode spaced apart from the

Abstract: Embodiments of the present disclosure relate to a display device and a driving method of the display device. More particularly, a subpixel includes a first control transistor for controlling a connection between a body of a driving transistor and a first node of the driving transistor, and a second control transistor for controlling a connection between the body of the driving transistor and a second node of the driving transistor, so that it is possible to improve mobility and on-current performance while increasing a S-factor of the driving transistor.

Abstract: A display device and a driving method for a display device are provided. The display device uses a second storage capacitor and stably moves the threshold voltage of the driving transistor to a positive value in a diode-connected driving circuit. Accordingly, a compensation performance of a threshold voltage of a driving transistor may be improved.

Abstract: A lithium secondary battery comprises a cathode, an anode, a separator and a nonaqueous electrolyte solution. The cathode includes a first cathode active material in which at least one of metals included in the first cathode material has a concentration gradient region between a central portion and a surface portion, and a second cathode active material having a single particle structure. The lithium secondary battery has improved life-span and penetration stability.

Abstract: Provided is an electromyogram (EMG) signal-based user authentication apparatus and method. The apparatus includes an EMG signal receiver configured to receive an EMG signal measured using an EMG sensor, a pre-processor configured to remove a partial signal from the received EMG signal according to a preset frequency band, and a controller configured to authenticate a user by comparing a pre-stored EMG signal with the EMG signal in which the partial signal has been removed.

Abstract: A lithium secondary battery comprises a cathode, an anode, a separator and a nonaqueous electrolyte solution. The cathode includes a first cathode active material in which at least one of metals included in the first cathode material has a concentration gradient region between a central portion and a surface portion, and a second cathode active material having a single particle structure. The lithium secondary battery has improved life-span and penetration stability.

Abstract: A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer including a first cathode active material layer and a second cathode active material layer sequentially stacked on the cathode current collector. The first cathode active material layer includes a first cathode active material particle having a secondary particle structure, and the second cathode active material layer includes a second cathode active material particle having a single particle shape. An adhesive force of the first cathode active material layer to a surface of the cathode current collector is greater than an adhesive force of the second cathode active material layer to a surface of the first cathode active material layer.

Abstract: A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer including a first cathode active material layer and a second cathode active material layer sequentially stacked on the cathode current collector. The first cathode active material layer includes first cathode active material particles having a secondary particle structure, and the second cathode active material layer includes second cathode active material particles having a single particle shape. A ratio of a SPAN value of the second cathode active material particles relative to a SPAN value of the first cathode active material particles is in a range from 2 to 4.5.

Abstract: An apparatus for classifying stress includes an electrocardiogram (ECG) measurement module configured to measure an ECG signal in a first state, an idle state, and an ECG signal in a second state in which noise, having various magnitudes, is generated, a feature point extraction module configured to extract a feature point of each of the measured ECG signal in the first state and the measured ECG signal in the second state, and a clustering module configured to perform K-means clustering on the ECG signals in the first and second states based on the extracted feature points to classify stress.

Abstract: A display device and a driving method for a display device are provided. The display device uses a second storage capacitor and stably moves the threshold voltage of the driving transistor to a positive value in a diode-connected driving circuit. Accordingly, a compensation performance of a threshold voltage of a driving transistor may be improved.

Abstract: Embodiments of the disclosure relate to a memory system and an operating method thereof. The memory system is configured to select, among the plurality of memory blocks, one or more target memory blocks operable to store user data to be accessed by a host which requests the memory system to write data, and determine whether to control a point of execution time of a command received from the host, based on valid page counts of respective target memory blocks.

Abstract: A memory system includes a first semiconductor memory device, a second semiconductor memory device, and a controller for controlling operations thereof. Each of the first and second semiconductor memory devices includes a normal area and a preliminary area. The controller is configured to determine a data migration operation on target data stored in the first semiconductor memory device and in response thereto control the first semiconductor memory device to read the target data, generate migration data including a plurality of group migration complete data indicating that the data migration operation has been partially completed based on the target data, and control the second semiconductor memory device to program the migration data in the preliminary area of the second semiconductor memory device.

Abstract: A cathode active material includes a first cathode active material particle and a second cathode active material particle. The first cathode active material particle includes a lithium metal oxide including a concentration gradient and has a secondary particle structure formed from an assembly of primary particles. The second cathode active material particle includes a lithium metal oxide having a single particle structure. The first and second cathode active material particles each includes at least two metals except from lithium, and an amount of nickel is the largest among those of the metals in each of the first and second cathode active material particles.

Abstract: Provided is a magnetic device including a conductive layer extended in a first direction and providing a spin Hall effect on a placement plane defined by the first direction and a second direction, a free layer disposed on the conductive layer, a fixed layer disposed on a portion of the free layer, a tunnel barrier layer disposed between the free layer and the fixed layer, a first electrode disposed on the fixed layer, a first charge storage layer disposed on the free layer so as not to overlap the fixed layer, and a first gate electrode disposed on the first charge storage layer. The first electrode and the first gate electrode are arranged in the second direction.

Abstract: Embodiments of the present disclosure relate to a display device and a driving method of the display device. More particularly, a subpixel includes a first control transistor for controlling a connection between a body of a driving transistor and a first node of the driving transistor, and a second control transistor for controlling a connection between the body of the driving transistor and a second node of the driving transistor, so that it is possible to improve mobility and on-current performance while increasing a S-factor of the driving transistor.

Abstract: A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a lithium composite oxide particle that contains lithium and transition metals including an excess amount of nickel. The lithium composite oxide particle satisfies a predetermined XRD peak area relation. A lithium secondary battery using the cathode active material and providing improved stability and durability is provided.

Abstract: Disclosed is a method of operating a non-volatile memory device. A method of operating a non-volatile memory device according to an embodiment of the present disclosure, in a method of operating a non-volatile memory device including a log storage area, a data storage area, and an ACK generation unit, may include receiving a log and data from a cache memory, storing the received log in the log storage area, storing the received data in the data storage area, and transmitting an ACK signal to the cache memory according to a result of storing the log and the data.

Abstract: A lithium secondary battery includes a cathode formed from a cathode active material including a first cathode active material particle and a second cathode active material particle, an anode and a separation layer interposed between the cathode and the anode. The first cathode active material particle includes a lithium metal oxide in which at least one metal forms a concentration gradient. The second cathode active material particle includes primary particles having different shapes or crystalline structures from each other.

Abstract: A fluorescence lifetime measuring apparatus according to an embodiment of the present invention includes: an irradiation light generator configured to generate irradiation light; a fluorescence photon detector configured to irradiate at least one or more samples, containing fluorescent molecules, with the irradiation light and collect a fluorescence photon generated by the irradiation; a converter configured to amplify the fluorescence photon and convert the amplified fluorescence photon into a fluorescence signal; and a measurer configured to analyze data of a function of the fluorescence signal by using a function obtained by multiplying a value, which is obtained by integrating the function of the fluorescence signal, by a simulation function.

Abstract: A lithium secondary battery according to an embodiment of the present invention includes an electrode assembly including a separation layer, and a plurality of cathodes and a plurality of anodes separated by the separation layer and repeatedly stacked, and a gas adsorption layer coated on a single surface of an outermost anode among the plurality of anodes.