Abstract: A display panel includes an amorphous silicon gate driver in which a lower voltage than the gate-off voltage output from the gate driver is applied to an adjacent stage as a low voltage transmission signal.

Abstract: In the case of a gas in which several gases are mixed, a type and concentration of the gas may be incorrectly measured when measured using only an optical band-pass filter. The invention of the present application is directed to providing a technology in which a plurality of broadband band-pass filters having overlapping regions are provided to calculate a magnitude of absorption for each wavelength band for light passing through each broadband band-pass filter, thereby identifying the presence of a gas of interest and the presence of a gas other than the gas of interest.

Abstract: The present disclosure relates to an automatic metal sorting system using laser induced breakdown spectroscopy. The system may include: a conveyer configured to move waste metals at a constant speed; a shape measurer configured to measure a position and a shape of at least one waste metal on the conveyer; a laser induced breakdown spectroscopic device configured to determine the kind of the waste metal by emitting a laser to the waste metal and receiving and analyzing a plasma spectrum signal generated by the emitted laser; and a discharger configured to separate and discharge the waste metal in accordance with the determined kind of the waste metal.

Abstract: Provided are a method for evaluating performance and a system thereof. The method according to some embodiments may include obtaining a first model trained using a labeled dataset, obtaining a second model built by performing unsupervised domain adaptation on the first model, generating pseudo labels for an evaluation dataset using the second model, wherein the evaluation dataset is an unlabeled dataset, and evaluating performance of the first model using the pseudo labels.

Abstract: Provided is a method for providing a group communication service performed in a service server for performing data communication with a manager terminal and a user terminal. The method comprises a first group setting step of setting a first group by providing an interface for receiving group member information from a manager terminal and setting a member classification item, a second group setting step of setting a second group by providing an interface for providing a clustered information on the basis of the member classification item based on information on the first group and receiving a manager input for the clustered information and a message sending step of receiving message information sent according to an input of a manager terminal and sending a message to a user terminal belonging to the second group.

Abstract: Provided is a method for providing a group communication service performed in a service server for performing data communication with a manager terminal and a user terminal. The method comprises a first group setting step of setting a first group by providing an interface for receiving group member information from a manager terminal and setting a member classification item, a second group setting step of setting a second group by providing an interface for providing a clustered information on the basis of the member classification item based on information on the first group and receiving a manager input for the clustered information and a message sending step of receiving message information sent according to an input of a manager terminal and sending a message to a user terminal belonging to the second group.

Abstract: The present invention relates to an optical image stabilizing apparatus for a micro-camera module capable of effectively stabilizing an image of the camera module and implementing miniaturization of the camera module by supplying an “L”-shaped biaxial guide structure to prevent a tilt in a Y axial direction while moving an automatic focusing unit of the camera module in a horizontal X axial direction and to prevent a tilt in an X axial direction while moving the automatic focusing unit of the camera module in a horizontal Y axial direction.

Abstract: The present invention relates to an image stabilizing apparatus for a camera module capable of effectively stabilizing an image of the camera module, implementing miniaturization and slimness, and reducing a manufacture cost of the camera module by supplying a two-axial correction structure to perform correction in an X axial direction or an Y axial direction of an automatic focusing unit through a ball holder having upper balls and lower balls.

Abstract: Provided is a shutter device including a coil layer that includes one or more substrates having a through-hole formed in the center thereof and a coil installed thereon, the coil generating a magnetic field when a current is applied; and a shutter layer that is installed on one surface of the coil layer and includes a shutter case having a shape corresponding to the substrate and a pair of shutter blades which are connected to flexible suspensions formed in the shutter case, respectively. The shutter blades open and close the through-hole of the substrate, while being moved in the reverse direction to each other by an electromagnetic force caused by an interaction with the magnetic field generated by the coil and returning to the original position due to the recovery force of the flexible suspensions when the electromagnetic force is canceled.

Abstract: The present invention relates to an optical image stabilizing apparatus for a micro-camera module capable of effectively stabilizing an image of the camera module and implementing miniaturization of the camera module by supplying an “L”-shaped biaxial guide structure to prevent a tilt in a Y axial direction while moving an automatic focusing unit of the camera module in a horizontal X axial direction and to prevent a tilt in an X axial direction while moving the automatic focusing unit of the camera module in a horizontal Y axial direction.

Abstract: The present invention relates to an image stabilizing apparatus for a camera module capable of effectively stabilizing an image of the camera module, implementing miniaturization and slimness, and reducing a manufacture cost of the camera module by supplying a two-axial correction structure to perform correction in an X axial direction or an Y axial direction of an automatic focusing unit through a ball holder having upper balls and lower balls.

Abstract: Provided is a shutter device including a coil layer that includes one or more substrates having a through-hole formed in the center thereof and a coil installed thereon, the coil generating a magnetic field when a current is applied; and a shutter layer that is installed on one surface of the coil layer and includes a shutter case having a shape corresponding to the substrate and a pair of shutter blades which are connected to flexible suspensions formed in the shutter case, respectively. The shutter blades open and close the through-hole of the substrate, while being moved in the reverse direction to each other by an electromagnetic force caused by an interaction with the magnetic field generated by the coil and returning to the original position due to the recovery force of the flexible suspensions when the electromagnetic force is canceled.

Abstract: A method of manufacturing a bubble-jet type ink jet printhead. The method includes forming resistive heater elements on a substrate, forming a patterned electrode layer on the resultant structure, forming an insulating layer over the resultant structure, forming barrier walls on the resultant structure and attaching a nozzle plate on the resultant structure. The method may further include etching a hole in the insulating layer, forming a second electrode layer over the etched insulating layer to contact the resistive heater elements and forming a second insulating layer thereon, where the barrier walls and then the nozzle plate are formed on top of the second insulating layer. The barrier walls group together resistive heater elements in pairs and form barriers between different pairs of resistive heater elements.

Abstract: A bubble-jet type ink jet printhead and manufacturing method thereof are provided. In the printhead, a manifold for supplying ink and a concave ink chamber is integrated with a substrate by being recessed from the same surface of the substrate, and a nozzle palate on the substrate in which a nozzle is formed and a round-shaped heater surrounding the nozzle are integrated without a complex process such as bonding. Thus, this simplifies the manufacturing procedure and facilitates high volume production. Furthermore, the round-shaped heater forms a doughnut-shaped bubble to eject ink, thereby preventing a back flow of ink as well as formation of satellite droplets which may degrade image resolution.

Abstract: The present invention relates to positively charged lipids prepared by linking salt forms of acidic amino acid with a variety of lengths of hydrocarbon chain, a process for preparing the lipids, and liposomes comprising the said positively charged lipids. Positively charged lipids of the invention can be practically applied for the preparation of liposomes for gene therapy, since they provide better characteristics than the conventional positively charged lipids in terms of gene delivery efficiency and biocompatibility.

Abstract: A manufacturing process in which a plurality of fluid jetting apparatuses are formed includes forming and sequentially adhering a heat driving part, a membrane and a nozzle part, respectively. The fluid jetting apparatuses are completed as a wafer unit by forming the nozzle part by forming a nozzle plate on a substrate of a wafer by a spinning process; forming jetting fluid barriers on the nozzle plate by the spinning process; forming jetting fluid chambers in the jetting fluid barriers; forming nozzles in the nozzle plate; and separating the substrate from the nozzle plate after the nozzle part and the membrane are adhered to each other. The forming jetting fluid chambers is accomplished by a process of wet etching, and the forming nozzles is accomplished by a treating apparatus of a laser beam or by a process of reactive ion etching.

Abstract: A bubble-jet type ink-jet printhead is provided. When forming a doughnut-shaped bubble, the printhead allows bubbles to be first grown around the heater that surrounds the central axis of the nozzle at regular angles followed by the formation of another bubble between the earlier formed bubbles, thereby forming a larger doughnut-shaped bubble. Accordingly, this can prevent the formation of an unbalanced doughnut-shaped bubble due to variations in local resistance of the heater, which may be caused by a process error. Furthermore, the printhead allows the center of the doughnut-shaped bubble to be set on the central axis of the nozzle thus causing a droplet formed within the doughnut-shaped bubble to be ejected in a normal manner, that is, in a direction vertical to the nozzle plate.

Abstract: A bubble-jet type ink-jet printhead is provided. The bubble-jet type ink-jet printhead includes a substrate, a plurality of chamber walls arranged parallel to one another on the substrate for dividing a chamber into a plurality unit chambers having a predetermined height, which are ink flow areas, a bubble generating means, provided for each unit chamber, which includes two unit heaters spaced apart by a predetermined distance on the substrate, and a nozzle plate, combined above the substrate, in which a plurality of nozzles are formed, each nozzle corresponding to a region between the two unit heaters of each bubble generating means. In this case, ink is supplied from both sides of the unit chamber. The ink-jet printhead is constructed such that a unit chamber is provided for each nozzle and bubbles are generated chamber on both sides of a nozzle within the unit chamber, thereby effectively preventing a back flow of ink while facilitating adjustment of the size of ink droplet ejected through the nozzle.

Abstract: A bubble-jet type ink jet printhead and manufacturing method thereof are provided. In the printhead, a manifold for supplying ink and a concave ink chamber is integrated with a substrate by being recessed from the same surface of the substrate, and a nozzle palate on the substrate in which a nozzle is formed and a round-shaped heater surrounding the nozzle are integrated without a complex process such as bonding. Thus, this simplifies the manufacturing procedure and facilitates high volume production. Furthermore, the round-shaped heater forms a doughnut-shaped bubble to eject ink, thereby preventing a back flow of ink as well as formation of satellite droplets which may degrade image resolution.

Abstract: A bubble-jet type ink-jet printhead is provided. The ink-jet printhead includes: a substrate; a nozzle plate including a plurality of nozzles, which is separated a predetermined space from the substrate; walls for closing the space between the substrate and the nozzle plate and then forming a common chamber between the substrate and the nozzle plate; a plurality of resistive layers, formed on the substrate within the common chamber corresponding to the plurality of nozzles, each resistive layer encircling the central axis passing through the center of each nozzle; a plurality of pairs of wiring layers formed on the substrate, each pair of wiring layers being connecting to each resistive layer and extending to the outside of the common chamber; and a plurality of pads which are disposed at the outside of the common chamber on the substrate and electrically connected to the wiring layers.