Abstract: A display device includes: a display panel including a folding area and a non-folding area on a side of the folding area; a panel support member on the display panel and including a folding portion overlapping the folding area and a non-folding portion overlapping the non-folding area; an adhesive member between the display panel and the panel support member; an elastic member opposite the adhesive member with the panel support member interposed therebetween and overlapping the folding portion; and a step member between the panel support member and the elastic member and overlapping the folding portion, wherein the folding portion includes a plurality of slits and a plurality of bars between the slits, the step member includes a plurality of step patterns apart from each other to form a space between the panel support member and the elastic member, and the space at least partially overlaps the slits.

Abstract: A battery pack includes a base cover, a plurality of battery cells contacting with the base cover, and a plate which is disposed between the plurality of battery cells and that includes a plate channel through which cooling water flows, and the plate channel includes a first heat-exchange area that exchanges heat with the base cover and a second heat-exchange area which is disposed below the first heat-exchange area and that exchanges heat with the battery cells.

Abstract: A fuel cell system includes a fuel cell stack and a battery that are connected to a high voltage line in parallel, a converter connected to the high voltage line and the battery while being located therebetween and configured to control a voltage at the high voltage line, and a controller, in a stop control mode of the fuel cell stack, when an error occurs in a drop control of an output voltage of the fuel cell stack, the controller dropping the voltage at the high voltage line under the output voltage of the fuel cell stack by the converter to drop the output voltage of the fuel cell stack.

Abstract: A display device including: a display panel; and a panel support layer disposed on the display panel, wherein the panel support layer includes: a folding portion, at least one non-folding portion disposed on at least one side of the folding portion, a plurality of bars and a plurality of slits alternately arranged at the folding portion, and at least one cut line disposed between the slits and the non-folding portion.

Abstract: A display device includes a display panel, a circuit board electrically connected to the display panel, a connector assembly electrically connected to the circuit board, and a reinforcing member disposed on the circuit board, where the reinforcing member includes a reinforcing film extending from one surface of the circuit board to one surface of the connector assembly, and an anti-bending portion extending from one surface of the reinforcing film in a direction crossing a direction in which the reinforcing film extends.

Abstract: An apparatus for controlling a vehicle is introduced. The apparatus may comprise a fuel cell, a sensor, an air compressor, and a processor configured to drive, based on an input indicating that the vehicle's ignition is on, the air compressor at a specified revolutions per minute (RPM) and control an air flow to prevent from entering the fuel cell, determine, based on sensor information from the sensor, whether a flow of air, driven by the air compressor, entering the vehicle from an outside is within a specified flow range, wherein the specified flow range may comprise a target flow, and change, based on the flow of the air entering the vehicle being outside the specified flow range, a parameter to adjust an oscillation of an output of the vehicle, wherein the output of the vehicle corresponds to the specified RPM.

Abstract: A vehicle control apparatus may identify a first sensing value for measuring a flow rate of air corresponding to a first RPM while the air is supplied to a fuel cell stack from an outside of the vehicle control apparatus by driving an air compressor based on the first RPM, obtain a first amount of change in a temperature of a coolant flowing using a cooler and a second amount of change in a temperature of the air compressor during a first time during which the air compressor is driven based on the first RPM, obtain a first flow rate value representing the flow rate of the air supplied to the fuel cell stack by using the first amount of change in the temperature of the coolant and the second amount of change in the temperature of the air compressor.

Abstract: An apparatus for controlling a fuel cell includes a fuel cell with an anode and a cathode, an oxygen tank that supplies oxygen to the cathode, and a processor. The processor enables the fuel cell, in response to a request to enable the fuel cell with preset electric power being less than a reference value of a stack included in the fuel cell, adjusts an internal pressure of a cathode to a preset pressure by adjusting an amount of oxygen supplied from the oxygen tank to the cathode while driving an air compressor included in the fuel cell, based on enabling of the fuel cell, and controls at least one of driving of the air compressor or a pressure of oxygen based on that the electric power being less than the reference value and more than the preset electric power while the fuel cell outputs the electric power by the preset pressure.

Abstract: A humidifier leak diagnosis system for a fuel cell system includes a fuel cell stack. The humidifier leak diagnosis system also includes an air supply system including at least one of an air compressor, a humidifier, an air cutoff valve, or an air pressure control valve. The humidifier leak diagnosis system additionally includes a controller configured to enter a humidifier leak diagnosis mode based on an inlet air pressure of the fuel cell stack. The controller is also configured to determine whether or not humidifier leak has been generated based on an output or an output voltage of the fuel cell stack generated through adjustment of at least one of an opening degree of the air cutoff valve or an opening degree of the air pressure control valve in humidifier leak diagnosis.

Abstract: A display device includes a display panel including light emitting elements, a panel support member disposed on a surface of the display panel, and a spacer disposed on a surface of the panel support member, the spacer including a first attachment layer, a support layer disposed on the first attachment layer, an outer peripheral film disposed on the first attachment layer and surrounding the support layer, and a second attachment layer disposed on the support layer and the outer peripheral film.

Abstract: A fuel cell system includes a fuel cell stack and a battery that are connected to a high voltage line in parallel, a converter connected to the high voltage line and the battery while being located therebetween and configured to control a voltage at the high voltage line, and a controller, in a stop control mode of the fuel cell stack, when an error occurs in a drop control of an output voltage of the fuel cell stack, the controller dropping the voltage at the high voltage line under the output voltage of the fuel cell stack by the converter to drop the output voltage of the fuel cell stack.

Abstract: Disclosed are a coating composition for a composite positive electrode active material and a method of preparing a composite positive electrode active material using the same.

Abstract: A circuit board has an insulative layer including a first surface and a second surface opposite to the first surface. A plurality of electrically conductive patterns is formed on the first surface of the insulative layer. Conductive lands are formed in a die mounting region of the first surface of the insulative layer and electrically connected to one of the plurality of conductive patterns on the first surface. An extending pattern extends from the conductive lands to outside of the mounting region. A protective layer covers the first surface of the insulative layer and the electrically conductive patterns. A trench is formed in the protective layer to expose the conductive lands and the extending patterns.