Abstract: A scan driver includes: a first transistor having a first electrode coupled to an output scan line, a second electrode coupled to a first power line, and a gate electrode coupled to a first node; a second transistor having a first electrode coupled to a first clock line, a second electrode coupled to the output scan line, and a gate electrode coupled to a second node; a third transistor having a first electrode coupled to the first node, a second electrode coupled to a first input scan line, and a gate electrode coupled to a second clock line; and a fourth transistor having a first electrode coupled to the second node and a second electrode and a gate electrode, which are coupled to a second input scan line, wherein the first input scan line and the second input scan line are different from each other.

Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure, it is possible to produce an organic electroluminescent device having improved driving voltage, power efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.

Abstract: In one example, a semiconductor device can comprise a substrate, a device stack, first and second internal interconnects, and an encapsulant. The substrate can comprise a first and second substrate sides opposite each other, a substrate outer sidewall between the first substrate side and the second substrate side, and a substrate inner sidewall defining a cavity between the first substrate side and the second substrate side. The device stack can be in the cavity and can comprise a first electronic device, and a second electronic device stacked on the first electronic device. The first internal interconnect can be coupled to the substrate and the device stack. The encapsulant can cover the substrate inner sidewall and the device stack and can fill the cavity. Other examples and related methods are disclosed herein.

Abstract: An example electronic device includes a housing; a touchscreen display; a microphone; at least one speaker; a button disposed on a portion of the housing or set to be displayed on the touchscreen display; a wireless communication circuit; a processor; and a memory. When a user interface is not displayed on the touchscreen display, the electronic device enables a user to receive a user input through the button, receives user speech through the microphone, and then provides data on the user speech to an external server. An instruction for performing a task is received from the server. When the user interface is displayed on the touchscreen display, the electronic device enables the user to receive the user input through the button, receives user speech through the microphone, and then provides data on the user speech to the external server.

Abstract: The inventive concept relates to a needle tip for application of current, a hand piece, and a skin treatment apparatus that are equipped with a needle in which an electromagnetically-energized active region is formed as a partial region other than a tip end of the needle is exposed in a non-insulated state.

Abstract: Disclosed is a high frequency current output device enabling sequential output and continuous output of monopolar- and bipolar-type current. The device comprises: an electrode unit including one or more first electrodes and one or more second electrodes; a first high frequency power generation unit; a switching circuit; and a control unit for controlling a switching operation of the switching circuit so as to output, on the basis of the power generated from the first high frequency power generation unit, a monopolar-type current, in which the same polarity is applied to the first electrodes and the second electrodes, and/or a bipolar-type current, in which currents of different polarities are applied.

Abstract: The present disclosure relates to an apparatus for controlling movement of an ultrasonic wave generating unit, the apparatus characterized by comprising: a transfer unit for moving the ultrasonic wave generating unit; and a control unit for controlling the operation of the ultrasonic wave generating unit and the transfer unit, wherein the control unit controls the ultrasonic wave generating unit such that, when the ultrasonic wave generating unit moves, ultrasonic waves are irradiated at intervals to the skin on a movement path of the ultrasonic wave generating unit.

Abstract: Disclosed is an ultrasonic wave generating apparatus capable of adjusting a focus depth of ultrasonic waves including a handpiece, a cartridge housing separably mounted on the handpiece, an ultrasonic wave generating unit provided in the cartridge housing and including a transducer that generates ultrasonic waves, a movable shaft that is movable in an axial line direction and a vertical direction of the transducer, and a guide part provided in the cartridge housing, and that guides the ultrasonic wave generating unit such that the ultrasonic wave generating unit is movable in the vertical direction and an axial line direction of the movable shaft. The guide part includes a guide shaft passing through the ultrasonic wave generating unit.

Abstract: Disclosed is an ultrasonic wave generating apparatus capable of adjusting a focusing depth of ultrasonic waves including a handpiece, a cartridge housing, an ultrasonic wave generating unit provided in the cartridge housing, connected to a movable shaft extending from the handpiece, and including a transducer that generates ultrasonic waves, a variable shaft connected to the ultrasonic wave generating unit and that is movable in an upward/downward direction of the transducer, and a manipulation part that moves the variable shaft in the upward/downward direction. The movable shaft is configured to be movable in an axial direction of the variable shaft. The ultrasonic wave generating apparatus may be moved in the upward/downward direction through manipulation of the manipulation part to be moved in the axial direction of the variable shaft after a target location in the upward/downward direction is determined.

Abstract: A laser device for skin treatment includes: a laser generating unit including a diode laser for generating a pulse capable of being varied to a pulse width of 100 picoseconds (ps) to 2000 ps by a dedicated driver having a rising time of 100 ps or less and a pulse width adjustment unit for adjusting a width of the pulse generated by the diode laser, the laser generating unit configured to generate a single or a plurality of pulses; and a laser amplifying unit including a pumping lamp and a single or a plurality of amplification mediums having a rod structure for absorbing light energy from the pumping lamp, wherein, in the laser amplifying unit, a pulse supplied from the laser generating unit passes through at least one of the single or a plurality of amplification mediums a plurality of times inward from the outside and is gradually amplified.

Abstract: The inventive concept relates to a needle tip for application of current, a hand piece, and a skin treatment apparatus that are equipped with a needle in which an electromagnetically-energized active region is formed as a partial region other than a tip end of the needle is exposed in a non-insulated state.

Abstract: A needle-free injector based on underwater discharge using a shock wave according to an embodiment of the present invention comprises: a pressure chamber in which a driving fluid is stored; a medicine chamber communicating with the pressure chamber to store medicine; a pressure transmitting unit interposed between the pressure chamber and the medicine chamber to apply propulsion pressure to the medicine stored in the medicine chamber, when a volume of the pressure chamber is expanded; an injecting unit provided at one side of the medicine chamber to discharge the medicine; and an electrode unit to expand the volume of the pressure chamber, by generating bubbles in the driving fluid stored in the pressure chamber and causing break down.

Abstract: The present invention relates to an ultrasound generation device capable of adjusting an ultrasound focus depth, comprising: a handpiece; a cartridge housing detachably coupled to the handpiece; an ultrasonic wave-generating unit provided in the handpiece or the cartridge housing; a rotating unit of which the outer circumferential surface makes contact with a support unit of the ultrasonic wave-generating unit, and which has a shape of a section with a rotation radius gradually increased from the center of the rotating unit; and a rotation adjusting unit coupled to the rotating unit to apply force for driving the rotating unit, wherein the rotating unit adjusts the focal depth of the ultrasonic waves from the ultrasonic wave-generating unit, as the rotation adjusting unit rotates the rotating unit to change a rotation radius of the rotating unit, such that the ultrasonic wave-generating unit is moved.

Abstract: The present invention relates to an ultrasonic wave generating cartridge which comprises: a cartridge housing; an ultrasonic wave generating unit which is disposed so as to be able to move in a reciprocating manner in the cartridge housing; and a position detection unit which can detect the real-time position of the ultrasonic wave generating unit by sending a transmission signal to the movement path of the ultrasonic wave generating unit.

Abstract: Disclosed is a needle-free injector. The needle-free injector includes a first current applying unit that applies a first current, a first coil that receives the first current from the first current applying unit, a second coil that moves to apply pressure to a drug, a housing of which the outside is surrounded by the first coil and in which the second coil is positioned, a drug chamber which is connected to the housing and in which the drug is positioned, and an injection nozzle positioned in the drug chamber to inject the drug.

Abstract: Disclosed is a needle-free injector including a power supply unit, a coil that receives current from the power supply unit, a drug chamber in which a drug is positioned, a housing connected to the drug chamber, a separation membrane that separates the housing and the drug chamber, a metal material adjacent to a separation membrane, and an injection unit positioned in the drug chamber to inject the drug. The coil is positioned outside the housing or outside the drug chamber.

Abstract: The inventive concept relates to a needle tip for application of current, a hand piece, and a skin treatment apparatus that are equipped with a needle in which an electromagnetically-energized active region is formed as a partial region other than a tip end of the needle is exposed in a non-insulated state.