Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound according to the present disclosure or by comprising a specific combination of compounds according to the present disclosure as a plurality of host materials, it is possible to produce an organic electroluminescent device having improved luminous efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.

Abstract: The present invention relates to an immersion cooling apparatus including a chamber, a rack module installed in the chamber and having a plurality of slots each having a cooling target mounted thereon, a supply part connected to the chamber and configured to supply a cooling fluid to the inside of the chamber, and a discharge part disposed to be spaced apart from the supply part and configured to discharge the cooling fluid from the chamber.

Abstract: A mid-gate assembly for a vehicle includes: a module frame installed between a passenger compartment and a cargo compartment of a vehicle and spaced apart from a floor of the vehicle; a mid-gate rotatably installed on the floor and configured to selectively close a lower side of the module frame by being rotated by a mid-gate regulator and open the lower side of the module frame by being folded toward the floor; and a back glass installed on the module frame and the mid-gate and configured to be selectively movable upward and downward by a back glass regulator.

Abstract: The present invention relates to a heterojunction semiconductor substrate having excellent dielectric properties, a method of manufacturing the same, and an electronic device using the same. The present invention provides a heterojunction semiconductor substrate with improved interlayer adhesion, low leakage current, and excellent dielectric properties that maintain strength in a ferroelectric fatigue experiment by interposing a metal layer and a conductive metal oxide layer on a semiconductor substrate to form an epitaxial oxide thin film layer composed of perovskite piezoelectric oxide. The heterojunction semiconductor substrate can be applied to sensors, actuators, transducers, or MEMS devices that use the high functionality of the high-quality epitaxial oxide thin film layer, including applications in electronic and optical devices.

Abstract: A display device includes: a base layer comprising a display area and a non-display area surrounding at least a portion of the display area; an insulating layer on the base layer and having an engraved pattern formed by removing at least a portion thereof in a thickness direction to overlap the non-display area; a light emitting element overlapping the display area and on the base layer; and an organic layer overlapping the display area and the non-display area, covering at least a portion of the engraved pattern, and on the light emitting element, wherein the engraved pattern comprises an extension portion extending in an extension direction along one side of the display area and protruding portions protruding from the extension portion to a cross direction away from the display area and spaced apart from each other.

Abstract: A manufacturing apparatus and a manufacturing method are provided. A manufacturing apparatus includes a chamber, and a stage disposed in the chamber. The stage includes an upper surface on which a target substrate is disposed, a lower surface opposite to the upper surface, a first side surface extending between the upper surface and the lower surface in a first direction, and a second side surface extending between the upper surface and the lower surface in a second direction perpendicular to the first direction. The first side surface is in a round shape, and at least a portion of the first side surface is convex toward an outside of the stage.

Abstract: A display device includes: a base layer comprising a display area and a non-display area surrounding at least a portion of the display area; an insulating layer on the base layer and having an engraved pattern formed by removing at least a portion thereof in a thickness direction to overlap the non-display area; a light emitting element overlapping the display area and on the base layer; and an organic layer overlapping the display area and the non-display area, covering at least a portion of the engraved pattern, and on the light emitting element, wherein the engraved pattern comprises an extension portion extending in an extension direction along one side of the display area and protruding portions protruding from the extension portion to a cross direction away from the display area and spaced apart from each other.

Abstract: A display device includes: a substrate; an insulation layer that is positioned on the substrate and includes a plurality of openings; a plurality of emission layers that are positioned in the openings; and a plurality of spacers that are positioned on the insulation layer, wherein an area where the emission layers are positioned defines light emitting regions on a plane, at least one of the spacers has a shape of a circle, a regular polygon having five or more sides, or a regular polygon with at least one rounded corner and five or more sides, a planar area of at least one of the spacers is larger than a planar area of the smallest light emitting region, and the number of the spacers positioned in the predetermined region is at least 30% of the number of the light emitting regions arranged in the predetermined region.

Abstract: A manufacturing apparatus and a manufacturing method are provided. A manufacturing apparatus includes a chamber, and a stage disposed in the chamber. The stage includes an upper surface on which a target substrate is disposed, a lower surface opposite to the upper surface, a first side surface extending between the upper surface and the lower surface in a first direction, and a second side surface extending between the upper surface and the lower surface in a second direction perpendicular to the first direction. The first side surface is in a round shape, and at least a portion of the first side surface is convex toward an outside of the stage.

Abstract: A manufacturing apparatus and a manufacturing method are provided. A manufacturing apparatus includes a chamber, and a stage disposed in the chamber. The stage includes an upper surface on which a target substrate is disposed, a lower surface opposite to the upper surface, a first side surface extending between the upper surface and the lower surface in a first direction, and a second side surface extending between the upper surface and the lower surface in a second direction perpendicular to the first direction. The first side surface is in a round shape, and at least a portion of the first side surface is convex toward an outside of the stage.

Abstract: A display device includes a substrate; a first electrode disposed on the substrate; and a pixel defining layer disposed on the substrate and which exposes the first electrode and includes a first region having a first height and a second region connected to the first region and having a second height higher than the first height.

Abstract: A display device includes: a display panel including an emission region, and a peripheral region adjacent to the emission region, the emission region including a light emitting element; at least one insulating layer on the display panel; an organic layer on the at least one insulating layer, the organic layer having an opening corresponding to the emission region; and a planarization layer on the organic layer, and filling the opening. The opening has a shape including first vertices and second vertices in a plan view, each of the first vertices has an internal angle of 90° or less, and in the plan view, each of the first vertices is located farther from a center of the opening than a corresponding adjacent second vertex from among the second vertices.

Abstract: A manufacturing apparatus and a manufacturing method are provided. A manufacturing apparatus includes a chamber, and a stage disposed in the chamber. The stage includes an upper surface on which a target substrate is disposed, a lower surface opposite to the upper surface, a first side surface extending between the upper surface and the lower surface in a first direction, and a second side surface extending between the upper surface and the lower surface in a second direction perpendicular to the first direction. The first side surface is in a round shape, and at least a portion of the first side surface is convex toward an outside of the stage.

Abstract: The present invention relates to various uses of a composition comprising plant-derived extracellular vesicles.

Abstract: The present invention relates to a device for controlling power distribution to distribution lines in a distribution technology field. More particularly, the present invention relates an improved device for controlling power distribution to distribution lines for reinforcing security of Internet Of Things (IoT) by coupling a security chip, an security chip, an IoT security terminal, an IoT key distribution server, and a security application with each other upon smart metering using the IoT as a part of a smart grid to prevent unauthorized access and for efficiently controlling power distribution to distribution lines using metering information according to smart metering.

Abstract: An image forming apparatus and a control method thereof in which occurrence or removal of a paper rolling state in a fusing device is judged based on temperature of the fusing device. The apparatus includes a temperature sensor to sense temperature of the fusing device, a memory to store information about occurrence or removal of the paper rolling state, and a controller to judge occurrence or removal of the paper rolling state. The controller detects an initial temperature of the fusing device when the apparatus is turned off and then on in a state in which the information about occurrence of the paper rolling state is stored in the memory, heats the fusing device by applying power thereto for a predetermined time based on the initial temperature, and judges occurrence or removal of the paper rolling state based on temperature of the fusing device detected after power application.

Abstract: An image forming apparatus is provided which includes a multiplexer (MUX) which is able to be connected to at least one developer supplier, at least one pull-up resistor which is connected in parallel to at least one connection line between the at least one developer supplier and the MUX, and a central processing unit (CPU) which detects a connection signal from the at least one pullup resistor and the at least one connection line, and determines whether an initial developer supplier is mounted according to the value of the connection signal.

Abstract: A wireless network printing system and method, the system including: a first wireless terminal to selectively connect to an ad-hoc network, where inter-device communication is directly performed between devices, and an infrastructure network, where inter-device communication is indirectly performed, via an access point (AP); a second wireless terminal to transmit data to the first wireless terminal, via the ad-hoc network; and an image forming device affiliated with the infrastructure network, to print the data, after the data has been relayed through the first wireless terminal.

Abstract: An image forming apparatus is provided which includes a multiplexer (MUX) which is able to be connected to at least one developer supplier, at least one pull-up resistor which is connected in parallel to at least one connection line between the at least one developer supplier and the MUX, and a central processing unit (CPU) which detects a connection signal from the at least one pullup resistor and the at least one connection line, and determines whether an initial developer supplier is mounted according to the value of the connection signal.

Abstract: An image forming apparatus is provided which includes a multiplexer (MUX) which is able to be connected to at least one developer supplier, at least one pull-up resistor which is connected in parallel to at least one connection line between the at least one developer supplier and the MUX, and a central processing unit (CPU) which detects a connection signal from the at least one pullup resistor and the at least one connection line, and determines whether an initial developer supplier is mounted according to the value of the connection signal.