Abstract: A display device includes a transistor including an active layer including first and second active areas, where the first active area includes a first drain area, a source area, and a first channel area between the source area and the first drain area, and the second active area includes the source area, a second drain area, and a second channel area between the source area and the second drain area, a gate insulating layer on the active layer, first and second charge layers at an interface between the first channel area and the gate insulating layer and at an interface between the second channel area and the gate insulating layer, where the first charge layer is adjacent to the source area, and the second charge layer is adjacent to the first and second drain areas and has a charge opposite to a charge of a first charge layer.

Abstract: In a display device, each of pixels includes a light emitting element and a pixel circuit which is connected to the light emitting element at a first node and drives the light emitting element in response to a corresponding driving scan signal among driving scan signals during a display period. The pixel circuit is connected to a corresponding readout line among readout lines at a second node. The sensing circuit senses a potential of the first node through the corresponding readout line during a blank period, and each of frames includes the display period and the blank period. At least two driving scan signals among the driving scan signals respectively include a plurality of rewriting periods, each of which is activated during the blank period corresponding thereto, and the rewriting periods of the driving scan signals have different durations from each other.

Abstract: In a display device, each of pixels includes a light emitting element and a pixel circuit which is connected to the light emitting element at a first node and drives the light emitting element in response to a corresponding driving scan signal among driving scan signals during a display period. The pixel circuit is connected to a corresponding readout line among readout lines at a second node. The sensing circuit senses a potential of the first node through the corresponding readout line during a blank period, and each of frames includes the display period and the blank period. At least two driving scan signals among the driving scan signals respectively include a plurality of rewriting periods, each of which is activated during the blank period corresponding thereto, and the rewriting periods of the driving scan signals have different durations from each other.

Abstract: A display device includes a pixel unit that includes a plurality of pixels, a compensator configured to receive sensing data from the pixel unit in a sensing period and that detects and compensates for a characteristic of the pixels, and a timing controller configured to convert an image signal received from an outside into image data.

Abstract: In a display device, each of pixels includes a light emitting element and a pixel circuit which is connected to the light emitting element at a first node and drives the light emitting element in response to a corresponding driving scan signal among driving scan signals during a display period. The pixel circuit is connected to a corresponding readout line among readout lines at a second node. The sensing circuit senses a potential of the first node through the corresponding readout line during a blank period, and each of frames includes the display period and the blank period. At least two driving scan signals among the driving scan signals respectively include a plurality of rewriting periods, each of which is activated during the blank period corresponding thereto, and the rewriting periods of the driving scan signals have different durations from each other.

Abstract: A driving method of a display device including a power source which supplies a power voltage to a power base line, and pixels connected to power branch lines commonly connected to the power base line, includes calculating a first scale factor based on input grayscales received during a first frame period; calculating first output grayscales by applying the first scale factor to first input grayscales received during a second frame period, where the second frame period is a frame period immediately next to the first frame period; displaying an image by at least a part of the pixels based on the first output grayscales; and providing a first current limiting signal to the power source and calculating a second scale factor smaller than the first scale factor when a current of the power base line exceeds a reference value.

Abstract: A water treatment device includes: an electrode structure installed in a storage space in which water is stored or in a flow space in which water flows so as to cause an underwater plasma discharge; and a gas supply module for supplying a gas to the storage space or the flow space such that bubbles are supplied underwater, as a discharge gas, to the electrode structure, wherein the electrode structure includes: a first electrode; a second electrode disposed opposite the first electrode; and a dielectric member disposed in a space between the first electrode and the second electrode.

Abstract: A display device includes: a low drop-out (“LDO”) regulator which provides a second power voltage to a power line during a first period of one frame; a buck converter which provides a first power voltage to the power line during a third period of the one frame; and a pixel connected to the LDO regulator and the buck converter through the power line. A voltage level of the second power voltage is equal to a voltage level of the first power voltage.

Abstract: A display device includes: a low drop-out (“LDO”) regulator which provides a second power voltage to a power line during a first period of one frame; a buck converter which provides a first power voltage to the power line during a third period of the one frame; and a pixel connected to the LDO regulator and the buck converter through the power line. A voltage level of the second power voltage is equal to a voltage level of the first power voltage.

Abstract: A driving method of a display device including a power source which supplies a power voltage to a power base line, and pixels connected to power branch lines commonly connected to the power base line, includes calculating a first scale factor based on input grayscales received during a first frame period; calculating first output grayscales by applying the first scale factor to first input grayscales received during a second frame period, where the second frame period is a frame period immediately next to the first frame period; displaying an image by at least a part of the pixels based on the first output grayscales; and providing a first current limiting signal to the power source and calculating a second scale factor smaller than the first scale factor when a current of the power base line exceeds a reference value.

Abstract: A method for registering customer premises equipment to provide an Internet service to the customer premises equipment by a network management apparatus of an access network structure, wherein the network management apparatus and the customer premises equipment are connected through a bundle cable including a plurality of lines in the access network structure, the method includes: transmitting a registration signal toward a customer premises equipment; receiving registration response signals transmitted from the customer premises equipment through the plurality of lines; analyzing the registration response signals introduced from the plurality of lines and distinguishing a direct signal transmitted through a properly connected line and interference signal from the registration response signals; and establishing a link with the customer premises equipment connected to the properly connected line.

Abstract: A display device according to an embodiment of the disclosure includes a display circuit including pixels divided into a plurality of blocks, a power interface which outputs block currents, a current sensor which senses the block currents and outputs sensing values of the block currents, and a block current controller which outputs a control voltage for controlling a block current supplied to a deterioration block. The power interface includes a plurality of transistors each including a first electrode connected to a first power supply, a second electrode connected to a first power supply line, and a gate electrode connected to a control line.

Abstract: A display panel driving apparatus includes a data driver, a gate driver, an extra resistance part through which a constant current passes, and a circuit configured to generate a first gamma voltage, and output a first extra gamma voltage indirectly to the data driver through the extra resistance part. The data driver is configured to generate a data signal based on the first gamma voltage and output the data signal to a data line of a display panel. The gate driver is configured to output a gate signal to a gate line of the display panel.

Abstract: A display panel driving apparatus includes a data driver, a gate driver, an extra resistance part through which a constant current passes, and a circuit configured to generate a first gamma voltage, and output a first extra gamma voltage indirectly to the data driver through the extra resistance part. The data driver is configured to generate a data signal based on the first gamma voltage and output the data signal to a data line of a display panel. The gate driver is configured to output a gate signal to a gate line of the display panel.

Abstract: A display panel driving apparatus includes a data driver, a gate driver, an extra resistance part through which a constant current passes, and a circuit configured to generate a first gamma voltage, and output a first extra gamma voltage indirectly to the data driver through the extra resistance part. The data driver is configured to generate a data signal based on the first gamma voltage and output the data signal to a data line of a display panel. The gate driver is configured to output a gate signal to a gate line of the display panel.

Abstract: A method for registering customer premises equipment to provide an Internet service to the customer premises equipment by a network management apparatus of an access network structure, wherein the network management apparatus and the customer premises equipment are connected through a bundle cable including a plurality of lines in the access network structure, the method includes: transmitting a registration signal toward a customer premises equipment; receiving registration response signals transmitted from the customer premises equipment through the plurality of lines; analyzing the registration response signals introduced from the plurality of lines and distinguishing a direct signal transmitted through a properly connected line and interference signal from the registration response signals; and establishing a link with the customer premises equipment connected to the properly connected line.

Abstract: An apparatus for generating injection current for a fuel cell stack includes a switch configured to retain any one state of an on state and an off state; an inductor configured to output accumulated energy according to a state of the switch; and a converter configured to provide an output of the inductor to a load or convert the output into a predetermined voltage and provide the predetermined voltage to a load.

Abstract: A pixel circuit includes a scan transistor connected between a data line and a first node and being configured to receive a scan signal, an emission control transistor connected between a first power supply and a second node and being configured to receive an emission control signal, a driving transistor connected between the second node and a third node and being connected to the first node, an initialize transistor being configured to receive an initialization signal, a storage capacitor connected between the first node and the third node; an organic light emitting diode connected between the third node and a second power supply, a charge share capacitor connected between a fourth node and the second power supply; and a charge share transistor configured to connect the charge share capacitor to the storage capacitor, the charge share transistor being configured to receive a charge share control signal.

Abstract: A display device includes a display panel, a power supply unit, a first current measuring unit, and an overcurrent preventing switch. The power supply unit provides a power supply voltage to the display panel. The first current measuring unit is connected to a first path for providing the power supply voltage from the power supply unit to the display panel and measures a first current flowing through the first path. The overcurrent preventing switch is connected in parallel with the first current measuring unit and selectively forms a detour path for the first path according to an amount of the first current such that at least a portion of the first current flows through the detour path.

Abstract: An apparatus for generating injection current for a fuel cell stack includes a first converter configured to convert direct current of a voltage corresponding to a battery for a vehicle, into direct current of a predetermined voltage; a second converter configured to convert the converted direct current into alternating current; a filter configured to filter a signal of a predetermined frequency band from the converted alternating current; and a control unit configured to perform a feedback control to allow the filtered alternating current to be injected without being distorted when injecting the filtered alternating current into the fuel cell stack.