Abstract: A display device including a display unit including a scan line, a data line, and a pixel, a gate driver supplying a scan signal, and a source driver supplying a data voltage, in which the source driver includes a gamma voltage generator generating different gamma voltages in response to a gamma enable signal, a digital-to-analog converter generating the data voltage corresponding to a gray scale value using the gamma voltages, and a source buffer outputting the data voltage, the gamma voltage generator includes a first resistor string setting a range of the gamma voltages, gamma buffers outputting selected voltages among divided voltages within the voltage range, and a second resistor string including tabs to divide a voltage between the tabs to generate the gamma voltages, and at least some of the gamma buffers are turned on in a first period and are turned off in a second period.

Abstract: An outdoor unit of an air conditioner includes a compressor that compresses a first refrigerant introduced from an indoor unit of the air conditioner and a condenser that condenses the first refrigerant compressed by the compressor. A first driving circuit drives the compressor and a second driving circuit regulates a voltage of the first driving circuit. A cooling unit includes: a heat dissipation member that comes into thermal contact with the first driving circuit and the second driving circuit, and a refrigerant pipe that is provided in the heat dissipation member, and has a path along which a second refrigerant moves through the first driving circuit and the second driving circuit. As a result, it is possible to efficiently cool the first driving circuit and the second driving circuit.

Abstract: A display apparatus includes a display panel, a data analyzer, a logic core and a latch. The display panel is configured to display an image. The data analyzer is configured to analyze input image data. The logic core is configured to compensate all of line data, compensate a part of the line data, or not compensate all of the line data according to an analysis result of the data analyzer. The latch is configured to receive compensated data from the logic core.

Abstract: A display device includes a display unit including a pixel which displays an image based on a first power voltage and a data signal, a gamma voltage generator which generates gamma voltages, and a data driver which generates the signal using the gamma voltages and provides the data signal to the pixel. The gamma voltage generator generates first and second reference voltages, generates first and second corrected reference voltages by correcting the first and second reference voltages using a target voltage and an external power voltage provided from the display unit in correspondence with the first power voltage, and generates the gamma voltages by dividing the first and second corrected reference voltages. The gamma voltage generator sets the target voltage based on at least one selected from the first reference voltage, the second reference voltage, and a ground voltage.

Abstract: A display device includes a display unit including a pixel which displays an image based on a first power voltage and a data signal, a gamma voltage generator which generates gamma voltages, and a data driver which generates the signal using the gamma voltages and provides the data signal to the pixel. The gamma voltage generator generates first and second reference voltages, generates first and second corrected reference voltages by correcting the first and second reference voltages using a target voltage and an external power voltage provided from the display unit in correspondence with the first power voltage, and generates the gamma voltages by dividing the first and second corrected reference voltages. The gamma voltage generator sets the target voltage based on at least one selected from the first reference voltage, the second reference voltage, and a ground voltage.

Abstract: A display driving circuit includes a clock signal generator which generates a clock signal at a frequency in response to a frequency control signal, a frequency variation determiner which adaptively changes a frequency variation of the clock signal, based on a magnitude of a deviation between the frequency of the clock signal and a target frequency calculated based on a reference clock signal supplied from the outside, and a frequency controller which generates the frequency control signal which updates the frequency of the clock signal, based on the frequency variation, and provides the frequency control signal to the clock signal generator.

Abstract: Disclosed are a method and an apparatus for managing a user profile. A user profile management method performed by a server according to an example embodiment includes creating a plurality of profiles corresponding to a user account, receiving a view request for a profile of the other user account in a predetermined relationship with the user account from a user terminal logged in with the user account, providing a UI of a profile of the other user account including an interfacing object regarding the profile of the user account to the user account, receiving an input for selecting a profile to be displayed on the other user terminal logged in the other user account, among a plurality of profiles corresponding to the user account through the interfacing object, and matching the other user account with the selected profile.

Abstract: A display device includes: a display region including a first pixel region, a second pixel region, and a third pixel region; a dummy region including a first dummy region disposed between the second pixel region and the third pixel region; first, second, and third pixels respectively arranged in the first pixel region, the second pixel region, and the third pixel region in a matrix of vertical lines and horizontal lines; a data converter configured to: receive first image data including effective data corresponding to the display region and dummy data corresponding to the dummy region; and generate second image data by converting a gray scale value of dummy data corresponding to at least one region of the first dummy region in the first image data into a predetermined first gray scale value, the first gray scale value being between a lowest gray scale value and a highest gray scale value.

Abstract: Provided is a simulation method and system for real-time broadcasting. A simulation method may include verifying an action set for a mechanical object, and displaying a movement of the mechanical object in response to the action using a line that connects a start location of the movement and an end location of the movement.

Abstract: A method for preventing an inrush current of an electric vehicle charger may include the steps of determining whether there is a need for an increase or decrease in a charging current level while currently supplied to an electric vehicle to be charged; decreasing the charging current level at a predetermined ratio when it is determined that there is the need for the increase or decrease in the charging current level; checking whether an inrush current occurs for a first time; activating or deactivating at least one charging module to increase or decrease the charging current level according to the request of the electric vehicle to be charged, when the inrush current does not occur for the first time; checking whether the inrush current occurs for a second time; and increasing the charging current level by the charging current level requested by the electric vehicle to be charged, when the inrush current does not occur for the second time.

Abstract: A fuel cell electric vehicle and an electric vehicle, includes: a hydrogen tank that stores hydrogen and supplies the hydrogen to a fuel cell electric vehicle dispenser or a fuel cell stack pack; a fuel cell stack pack that operates in an electrolysis mode or a fuel cell mode; a battery pack that charges and stores DC power converted from AC power of a grid or power supplied from the fuel cell stack pack, and supplies the stored power to an electric vehicle dispenser; and a control unit that controls power transfer between the fuel cell stack pack and the battery pack and determines a driving mode of the fuel cell stack pack.

Abstract: An operation method of a communication node in an Ethernet-based vehicle network, the communication node including a regulator, a physical (PHY) layer unit, and a processor, includes outputting, by the processor, a first signal to initiate a supply of power to the communication node; outputting, by the processor, a second signal to initiate a transition of the communication node from a normal mode to a sleep mode; and transitioning, by the PHY layer unit, the communication node from the normal mode to the sleep mode when the second signal is received at the PHY layer unit from the processor.

Abstract: An operation method of a communication node in an Ethernet-based vehicle network, the communication node including a regulator, a physical (PHY) layer unit, and a processor, includes outputting, by the processor, a first signal to initiate a supply of power to the communication node; outputting, by the processor, a second signal to initiate a transition of the communication node from a normal mode to a sleep mode; and transitioning, by the PHY layer unit, the communication node from the normal mode to the sleep mode when the second signal is received at the PHY layer unit from the processor.

Abstract: A display device including a display unit including a scan line, a data line, and a pixel, a gate driver supplying a scan signal, and a source driver supplying a data voltage, in which the source driver includes a gamma voltage generator generating different gamma voltages in response to a gamma enable signal, a digital-to-analog converter generating the data voltage corresponding to a gray scale value using the gamma voltages, and a source buffer outputting the data voltage, the gamma voltage generator includes a first resistor string setting a range of the gamma voltages, gamma buffers outputting selected voltages among divided voltages within the voltage range, and a second resistor string including tabs to divide a voltage between the tabs to generate the gamma voltages, and at least some of the gamma buffers are turned on in a first period and are turned off in a second period.

Abstract: A test handler includes a pusher which includes a pusher end which comes into contact with a DUT (Device Under Test) to transfer heat, and a pusher body which conducts heat to the pusher end, the pusher end separating a test tray for fixing the DUT and the pusher body from each other; a porous match plate including a pusher arrangement region in which the pusher body is placed, and a plurality of holes placed adjacent to the pusher arrangement region; a heater placed on an upper surface of the porous match plate to control temperature of the pusher; and an airflow input port placed on the heater to provide the airflow to the plurality of holes, in which the airflow passes through the plurality of holes and passes through a separated space between the test tray and the pusher body.

Abstract: An outdoor unit of an air conditioner includes a housing including an outlet, a fan disposed inside the housing, and a guide guiding air flowing by the fan, wherein the guide includes an inflow portion provided to guide air introduced into the housing to the fan and a diffuser extending from the inflow portion to guide air passing through the fan to the outlet. The inflow portion includes a duct connected to the diffuser, a bell mouth disposed on an upstream side further than the duct and configured such that a width of an inlet end of the bell mouth is wider than a width of an outlet end of the bell mouth, and a guide vane formed on the bell mouth and configured to guide air introduced into the fan.

Abstract: A microwave heating system includes: a power supply; a first semiconductor module configured to receive power from the power supply and to generate a first microwave; a second semiconductor module configured to receive power from the power supply and to generate a second microwave; a heating chamber that is configured to accommodate an object at an inside of the heating chamber and that allows transmission of the first microwave and the second microwave to the inside of the heating chamber; and a control unit. The control unit is configured to control operation of each of the first semiconductor module and the second semiconductor module, and to control at least one of a frequency, a phase, or a magnitude of each of the first microwave and the second microwave to increase a heating uniformity of the object.

Abstract: A source driver includes a gamma voltage generator to generate gamma voltages having mutually different voltage levels, a digital-to-analog converter to generate a data voltage corresponding to a grayscale value using the gamma voltages, an output buffer unit to output the data voltage, and a chopping controller to generate a chopping control signal, and to provide the chopping control signal to the output buffer unit. The output buffer unit includes an amplifier connected to an output terminal of the digital-to-analog converter, and a chopping circuit to periodically change a polarity of an offset of the amplifier in response to the chopping control signal. The chopping controller is to change a slew rate of the chopping control signal.

Abstract: An outdoor unit of an air conditioner includes a compressor that compresses a first refrigerant introduced from an indoor unit of the air conditioner and a condenser that condenses the first refrigerant compressed by the compressor. A first driving circuit drives the compressor and a second driving circuit regulates a voltage of the first driving circuit. A cooling unit includes: a heat dissipation member that comes into thermal contact with the first driving circuit and the second driving circuit, and a refrigerant pipe that is provided in the heat dissipation member, and has a path along which a second refrigerant moves through the first driving circuit and the second driving circuit. As a result, it is possible to efficiently cool the first driving circuit and the second driving circuit.

Abstract: A display device includes: a display region including a first pixel region, a second pixel region, and a third pixel region; a dummy region including a first dummy region disposed between the second pixel region and the third pixel region; first, second, and third pixels respectively arranged in the first pixel region, the second pixel region, and the third pixel region in a matrix of vertical lines and horizontal lines; a data converter configured to: receive first image data including effective data corresponding to the display region and dummy data corresponding to the dummy region; and generate second image data by converting a gray scale value of dummy data corresponding to at least one region of the first dummy region in the first image data into a predetermined first gray scale value, the first gray scale value being between a lowest gray scale value and a highest gray scale value.