Abstract: The present invention relates to a method for synthesis of 3-phenyl-2,3,4,8,9,10-hexahydropyrano[2,3-f]chromene derivatives.

Abstract: There is provided an anhydrous dyeing system for yarn, including: a transfer printer which repeatedly sprays dye ink on a surface of a transfer sheet a plurality of times to laminate and apply ink layers; a dyeing jig which is in a drum form having a plurality of microholes formed in an outer circumferential surface thereof to penetrate inside and outside; a process chamber into which the dyeing jig is put; a heating member for heating the yarn wound on the dyeing jig, by supplying heat to the inside of the process chamber; and a vacuum-generating member which is in communication with an internal space of the dyeing jig and vacuum-evacuates the air in the internal space of the dyeing jig to thereby form a vacuum pressure inside the dyeing jig.

Abstract: Proposed is a calibration method for a lidar and an IMU using features according to the shape of a specific object included in point cloud data. The method may include placing point cloud data acquired by a lidar mounted on a vehicle on a predefined world coordinate system, by a data generator, extracting a region to be used for calibration from the placed point cloud data, by the data generator, identifying at least one object included in the extracted region, by the data generator, and performing calibration on the point cloud data by fitting point cloud included in the at least one identified object to a pre-stored model, by the data generator. The present method is a technology developed with support from the Ministry of Land/KAIA (Project No. RS-2021-KA160637).

Abstract: A display device comprises a substrate, a semiconductor layer thereon, a first insulating layer on the semiconductor layer, a first conductive layer on the first insulating layer and including a first electrode pattern, a second insulating layer on the first insulating layer and including first and second conductive patterns, a third insulating layer on the second conductive layer, and a display element layer on the third insulating layer and including a first pixel electrode connected to the first conductive pattern through a first via hole, a second pixel electrode connected to the second conductive pattern through a second via hole, and a micro light-emitting element between the pixel electrodes, the first conductive pattern contacting the semiconductor layer through a first contact hole and the first electrode pattern through a second contact hole, and the second conductive pattern overlapping the first electrode pattern to form a first capacitor therewith.

Abstract: The present invention relates to a non-contact portable tonometry system and tonometry method using a difference in infrared intensity. A nozzle module receives compressed air from a compressed air supply source and sprays the same through an air spray port to a cornea of a subject, thus to cause corneal deformation. An infrared ray sensor is disposed in the nozzle module to emit infrared rays to the cornea and measure an amount of light reflected from the cornea. A controller converts the amount of light measured by the infrared ray sensor before and after the deformation of corneal into intraocular pressure.

Abstract: The present disclosure relates to a display device capable of improving image quality while reducing power consumption. According to one or more embodiments of the disclosure, a display device includes a light-emitting element connected between a driving voltage line and a common voltage line, a first transistor connected between the driving voltage line and the light-emitting element, a second transistor connected between a data line and a source electrode of the first transistor, a third transistor connected between a gate electrode of the first transistor and a drain electrode of the first transistor, and a fourth transistor connected between a drain electrode of the first transistor and a first initialization voltage line, wherein the third transistor and the fourth transistor include a same type.

Abstract: A method of manufacturing a chiral nano-structure having chirality using a magnetic field according to one embodiment of the present disclosure includes a magnetic field forming operation that forms a magnetic field; a particle arranging operation that arranges at least two nanoparticles in the magnetic field; and a magnetic field adjusting operation that adjusts at least one of a magnetic flux density, a magnetization direction, and a spatial range of the magnetic field, in which in the magnetic field adjusting operation, the arrangement of the nanoparticles arranged in the magnetic field is aligned to correspond to a structure of the magnetic field, and the entire structure is formed as a nano-structure having chirality.

Abstract: A method controls a dishwasher including a tub configured to receive objects to be washed, a drying device configured to receive wet air from the tub and to discharge the wet air to an outside of the dishwasher, and a dry air supplier including a heating part and being configured to supply heated air to the tub. The method includes preheating the drying device by introducing dry air from the outside to the drying device before a first preset time from a start point of a drying operation, performing the drying operation at the start point, wherein the wet air is discharged from the tub during the drying operation, and cooling the dry air supplier by stopping operation of the heating part before a second preset time from an end time point of the drying operation.

Abstract: The present disclosure provides an insulating layer for a multilayer printed circuit board, a multilayer printed circuit board including the same, and a method for fabricating the same. The insulating layer of the present disclosure includes a polymer resin layer containing a melamine derivative, and thus may have excellent adhesion to a patterned metal layer.

Abstract: A light emitting display device includes a pixel driving part including a transistor, a planarization layer covering the pixel driving part, an anode of a light emitting diode disposed on the planarization layer, a pixel defining layer including an opening that overlaps the anode of the light emitting diode in a plan view, and including an inorganic insulating material, a wall including an opening overlapping the opening of the pixel defining layer and having conductivity, a light emitting layer disposed in the opening of the pixel defining layer, a cathode of the light emitting diode disposed on the light emitting layer, and a separator dividing the wall into a first wall and a second wall, wherein the first wall is electrically connected to the transistor of the pixel driving part through a first contact hole passing through the pixel defining film and the planarization layer.

Abstract: A sputtering apparatus includes a chamber in which a display device is placed and a deposition process is performed on the display device, a gas supply part supplying plasma gas into the chamber, a first target disposed in the chamber and facing the display device, and a plurality of first magnet members disposed inside the first target. The first target includes a first surface facing the display device and a second surface opposite the first surface and facing the plurality of first magnet members, and the first target further includes hollows and protrusions alternately repeated on the first surface.

Abstract: A pixel including: a light emitting element; a first transistor connected between a first power source and a second node; a first capacitor connected to a first node or a second node and a third node; a second transistor between the third node and a data line, the second transistor turned on by a first scan signal; a third transistor between the first and second nodes, the third transistor turned on by a second scan signal; a fifth transistor between the first power source and the first transistor, the fifth transistor turned on by a first emission control signal; a sixth transistor between the second node and the light emitting element, the sixth transistor turned on by a second emission control signal; and an eighth transistor between the second node and a second emission control line, the eighth transistor turned on by a fourth scan signal.

Abstract: A light emitting device comprises: a substrate; a first electrode on the substrate, the first electrode having holes, and having inclined surfaces along the peripheries of the holes; second electrodes on the substrate, each of which is in a respective one of the holes of the first electrode; and light emitting elements between the first electrode and the second electrodes, the light-emitting elements being electrically connected to the first electrode and the second electrodes.

Abstract: A method for carbonizing a polymer and a graphite prepared by the method are disclosed. The method includes a stabilization treatment operation of treating a polyolefin-based polymer with an acid solution containing at least one of hydrochloric acid, nitric acid, or a combination thereof. The method also includes a carbonization treatment operation of carbonizing the stabilized polymer at a temperature within a range of 400 to 3350° C. The graphite obtained therefrom is soft carbon.

Abstract: The polycarbonate copolymer of the present invention comprises: a unit derived from at least one type of primary dihydroxyl compound; and a unit derived from at least two types of secondary dihydroxyl compounds, wherein the polycarbonate copolymer has a pencil hardness of H or greater, when a specimen is measured according to the pencil hardness test (ISO 15184), and a glass transition temperature (Tg) of about 90° C. to about 160° C., measured according to ISO 11357. The polycarbonate copolymer has excellent heat resistance, scratch resistance, moldability, light resistance, weather resistance, transparency, mechanical strength, and the like.

Abstract: An emissive display device includes a driving transistor that includes a driving gate electrode, a first electrode, and a second electrode; a storage capacitor that includes a first electrode connected to the driving gate electrode and a second electrode; a hold capacitor that includes a first electrode connected to the second electrode of the storage capacitor and a second electrode to which a driving voltage is applied; and a light emitting diode that includes an anode, it further includes a connector that connects the first electrode of the hold capacitor and the second electrode of the hold capacitor, the first electrode of the hold capacitor is in a first gate conductive layer, and the second electrode of the storage capacitor is in a second gate conductive layer, the connector is in a first data conductive layer on the first gate conductive layer and the second gate conductive layer.

Abstract: A cap is configured to couple to a nozzle of a dish washer that is configured to supply air into a tub of the dish washer. The cap includes a lower cap configured to couple to an upper end portion of the nozzle, a flow cover configured to cover a part of the upper end portion of the nozzle, and an upper cap coupled to the lower cap and configured to, based on the cap being coupled to the nozzle, be spaced apart from and positioned above the nozzle and the flow cover. The cap defines a discharge opening configured to discharge air supplied to an inner space of the cap through the nozzle.

Abstract: A multi-optical axis sensor according to an embodiment of the present invention comprises: a light-transmitting unit comprising a plurality of light-transmitting elements; a light-receiving unit comprising a plurality of light-receiving elements which are arranged to respectively face the light-transmitting elements and respectively receive light from the light-transmitting elements; and an indicator light indicating a light incidence state or a light blockage state of the light-receiving unit, wherein, before a muting state that invalidates the detection function of the multi-optical axis sensor is detected, the light-transmitting unit or the light-receiving unit may operate the indicator light in a light incidence/blockage mode indicating the light incidence state or the light blockage state, and when the muting state is detected, the light-transmitting unit or the light-receiving unit may switch the operation mode of the indicator light from the light incidence/blockage mode to the muting mode indicating t

Abstract: A display device includes a light-emitting diode including a first conductivity-type semiconductor, an active layer, and a second conductivity-type semiconductor; a first voltage line to which a first voltage is applied; a second voltage line to which a second voltage is applied; a first transistor including a source electrode electrically connected to the first voltage line and a drain electrode electrically connected to a first electrode of the light-emitting diode and to the first conductivity-type semiconductor; a second transistor including a drain electrode electrically connected to a gate electrode of the first transistor and a source electrode electrically connected to a data line to apply a data signal; a capacitor electrically connected to the gate electrode of the first transistor and the first electrode; and a third transistor including a source electrode electrically connected to the second voltage line and a drain electrode electrically connected to the first electrode.