Abstract: Disclosed are a mode-locked resonator according to an embodiment and an ultrashort pulse laser comprising the mode-locked resonator. The mode-locked resonator according to an embodiment includes a resonator including a shape of a sphere; and a saturable absorber coated on a surface of the resonator, wherein the resonator is coupled with some photons traveling in a tapered optical fiber disposed near the mode-locked resonator and interacts with the saturable absorber based on a Whispering Gallery Mode (WGM).

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element connected to a first node, a second node, and a third node; a capacitor connected between the second node and the third node; a first switch element connected between a data line to which a data voltage of pixel data is applied and the second node; a second switch element connected between the first node and the second node; a third switch element; a fourth switch element; and a light emitting element. When the third switch element is turned on, a reference voltage is applied to the third node or an anode electrode of the light emitting element.

Abstract: A quadruple polarization antenna apparatus comprising: first dual-polarization antenna element; a second dual-polarization antenna element disposed below the first dual-polarization antenna element so that at least a portion overlaps the first dual-polarization antenna element; and a connecting part configured to connect the first dual-polarization antenna element and the second dual-polarization antenna element.

Abstract: A quadri-polarization diversity antenna system is disclosed. According to embodiments of the present disclosure, an antenna system includes an antenna array including a first column of dual-polarized antenna units and a second column of dual-polarized antenna units. Each of the dual-polarized antenna units includes a first antenna element and a second antenna element perpendicularly crossing each other. In each column, the first antenna elements are conductively connected to form a first subarray and the second antenna elements are conductively connected to form a second subarray. The antenna system further includes an RF matrix that selectively adjusts phases of RF input signals to generate RF output signals provided to the subarrays. When the RF output signals are radiated by the dual-polarized antenna units, a first beam with +/?45° polarizations and a second beam with 0°/90° polarizations are formed, and the first beam and the second beam are formed toward spatially different directions from each other.

Abstract: A quadri-polarization diversity antenna system is disclosed. According to embodiments of the present disclosure, an antenna system includes an antenna array including columns of first dual-polarized antenna units arranged on a first plane of an antenna panel and columns of second dual-polarized antenna units arranged on a second plane of the antenna panel. The first plane and the second plane form an obtuse angle with each other. The columns of the first dual-polarized antenna units are used to form a first beam with +/?45 ° polarizations, and the columns of the second dual-polarized antenna units are used to form a second beam with 0°/90° polarizations.

Abstract: The present invention relates to a substrate aligning device for bonding a first substrate (100) and a second substrate (200), wherein the first substrate (100) and the second substrate (200) have respective bonding surfaces via which the first substrate (100) and the second substrate (200) are bonded face-to-face with each other, and respective non-bonding surfaces which are located on the reverse sides from the bonding surfaces.

Abstract: The present disclosure relates to a display device. The display device includes: a first source driver IC configured to receive pixel data to be written into sub-pixels of a first display area and a gamma compensation voltage for each grayscale and output a data voltage to be supplied to data lines of the first display area; a second source driver IC configured to receive pixel data to be written into sub-pixels of a second display area and the gamma compensation voltage for each grayscale and output a data voltage to be supplied to data lines of the second display area; a first programmable gamma IC configured to supply a first gamma reference voltage set to the first and second source driver ICs; and a second programmable gamma IC configured to supply a second gamma reference voltage set to the first and second source driver ICs.

Abstract: Disclosed is a pixel circuit. The pixel circuit includes: a driving element connected to a first node, a second node, and a third node; a first switch element configured to be turned on to supply a data voltage to a fourth node; a second switch element configured to be turned on to supply a reference voltage or an initialization voltage to the fourth node; a third switch element configured to be turned on to connect the first node to the second node; a fourth switch element configured to be turned on to supply the reference voltage to the third node; a fifth switch element configured to be turned on a fourth gate signal to supply a pixel driving voltage to the first node; and a sixth switch element configured to be turned on to connect the third node to a fifth node.

Abstract: A multilayer electronic component includes a body including a first external electrode including a first base plating layer disposed on a third surface of the body and connected to the first internal electrode and a first electrode layer disposed on the first base plating layer, and a second external electrode including a second base plating layer disposed on a fourth surface of the body and connected to the second internal electrode and a second electrode layer disposed on the second base plating layer, wherein the first and second electrode layers include conductive metal and glass, and a 30 ?m×5 ?m region selected from a cross-section of the first base plating layer in the first and second directions includes three or more Ni grains having a grain size of 4 ?m or greater.

Abstract: Disclosed is a pixel circuit and a display device including the pixel circuit. The pixel circuit includes a driving element connected to a first node, a second node, and a third node; a first capacitor connected between the second node and a fourth node; a second capacitor connected between the third node and the fourth node; a light emitting element; a first switch element supplying an initialization voltage to the fourth node; a second switch element supplying the initialization voltage to the second node; a third switch element supplying a data voltage to the second node; and a fourth switch element supplying a reference voltage to the third node or to a fifth node connected to an anode electrode of the light emitting element.

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node, and configured to supply an electric current to a light emitting element; a first switch element discharging the second node; and a second switch element configured to supply a data voltage to the second node. The light emitting element and the first switch element are commonly connected to a VSS node to which a low-potential power supply voltage is applied.

Abstract: A display panel can include a plurality of first pixel circuits configured to receive a pixel driving voltage and a reference voltage for displaying an image; and a plurality of second pixel circuits including a power line supplied with the pixel driving voltage and a reference voltage line supplied with the reference voltage, the plurality of second pixel circuits being configured to short-circuit the power line to the reference voltage line for at least some amount of time within a vertical blank period. Also, the plurality of second pixel circuits can maintain uniform luminance of the plurality of first pixel circuits.

Abstract: A pixel circuit is disclosed. The pixel circuit includes: a driving element including a first electrode connected to a first node, a gate electrode connected to a second node, and a second electrode connected to a third node; a light emitting element including an anode electrode connected to a fourth node and configured to be driven according to the current from the driving element; a first switch element configured to supply a data voltage to the second node; a second switch element configured to supply an initialization voltage to the first node; a third switch element configured to supply a reference voltage to the third node or the fourth node; a fourth switch element configured to supply a cathode voltage or the reference voltage to the third node or the fourth node; and a fifth switch element configured to supply a pixel driving voltage to the first node.

Abstract: The present disclosure relates to a phase shifter and a communication device including the same, and particularly, to a phase shifter including a base panel; a fixed substrate which is laminated and fixed on one side or another side on the base panel and has a plurality of circuit patterns printed on the top surface thereof; and a phase shift switching part provided with a plurality of movable substrates including movable strip terminal which are in contact with the plurality of circuit patterns of the fixed substrate, wherein the phase shift switching part is configured to reciprocate the plurality of movable substrates within a predetermined distance in a horizontal direction on the base panel to change the positions of contact points of the movable substrates with respect to the circuit patterns, wherein the phase shift switching part moves the plurality of movable substrates while elastically supporting the plurality of movable substrates toward the circuit patterns, thereby providing an advantage of maxi

Abstract: A dual polarization antenna is disclosed in at least one embodiment of the present disclosure, including a base substrate, a power feeding unit supported on the base substrate, and a radiating plate supported on the power feeding unit, the power feeding unit includes a first feeding substrate and a second feeding substrate arranged to cross each other on the base substrate, the first feeding substrate includes a first feed line configured to supply a first reference phase signal to a first point on the radiating plate and to supply a first reverse phase signal having a reverse phase relative to the first reference phase signal, to a second point on the radiating plate, the second feeding substrate includes a second feed line configured to supply a second reference phase signal to a third point on the radiating plate and to supply a second reverse phase signal having a reverse phase relative to the second reference phase signal, to a fourth point on the radiating plate, and wherein the first feeding substrate