Abstract: A light emitting element includes: a light emitting stack pattern including a first semiconductor layer, an active layer, and a second semiconductor layer that are sequentially stacked along one direction; and an insulating film surrounding an outer surface of at least one of the first semiconductor layer, the active layer, and the second semiconductor layer. The insulating film including a zinc oxide (ZnO) thin film layer.

Abstract: A light-emitting element ink, a display device, and a method of fabricating the display device are provided. The light-emitting element ink includes a light-emitting element solvent, light-emitting elements dispersed in the light-emitting element solvent, each of the light-emitting elements including a plurality of semiconductor layers and an insulating film that surrounds parts of outer surfaces of the semiconductor layers, and a surfactant dispersed in the light-emitting element solvent, the surfactant including a fluorine-based and/or a silicon-based surfactant.

Abstract: A light emitting element ink and a method of manufacturing a display device are provided. The light emitting element ink includes a light emitting element solvent, a light emitting element dispersed in the light emitting element solvent, the light emitting element including a plurality of semiconductor layers and an insulating film surrounding outer surfaces of the semiconductor layers, a thickener dispersed in the light emitting element solvent, wherein a compound of the thickener includes a functional group capable of forming a hydrogen bond together with a compound of the light emitting element solvent or another compound of the thickener and the compound of the thickener is represented by Chemical Formula 1.

Abstract: A light emitting element ink and a method of manufacturing a display device are provided. The light emitting element ink includes a light emitting element solvent, a light emitting element dispersed in the light emitting element solvent, the light emitting element including a plurality of semiconductor layers and an insulating film surrounding outer surfaces of the semiconductor layers, a thickener dispersed in the light emitting element solvent, wherein a compound of the thickener includes a functional group capable of forming a hydrogen bond together with a compound of the light emitting element solvent or another compound of the thickener and the compound of the thickener is represented by Chemical Formula 1.

Abstract: A light-emitting element comprises a core comprising a first semiconductor layer, a second semiconductor layer provided on the first semiconductor layer, and an emissive layer provided between the first semiconductor layer and the second semiconductor layer, and a first element insulating film around a side surface of the core, wherein the first element insulating film comprises a composite of an insulating member and an elastic member.

Abstract: A liquid crystal display device includes a first substrate; a switching element including a control electrode disposed on the first substrate, one electrode disposed on the control electrode, and another electrode disposed on the control electrode and spaced apart from the one electrode; a contact hole extending to at least a part of the another electrode of the switching element; a pixel electrode including a contact portion disposed on the another electrode of the switching element and overlapping at least a part of the another electrode to which the contact hole extends, and a body portion electrically connected with the contact portion; and a column spacer disposed on the pixel electrode and at least partially overlapping the contact hole.

Abstract: A method for manufacturing a display device comprises the steps of: spraying, on a target substrate having a first electrode and a second electrode formed thereon, an element ink comprising a first element solvent and light-emitting elements dispersed in the first element solvent; forming a second element solvent in which at least some bonds of the first element solvent are decomposed by irradiating light to the first element solvent and mounting the light-emitting elements on the first electrode and the second electrode; and removing the second element solvent.

Abstract: A method for manufacturing a light emitting element includes forming a first semiconductor layer on a substrate, the first semiconductor layer including a semiconductor of a first type; forming an active layer on the first semiconductor layer; forming a second semiconductor layer on the active layer, the second semiconductor layer including a semiconductor of a second type different from the first type; performing an etching process of removing at least a portion of each of the first semiconductor layer, the active layer, and the second semiconductor layer in a direction toward the first semiconductor layer from the second semiconductor layer; and forming a first insulating layer to surround an outer surface of the active layer. The first insulating layer is formed by a wet process.

Abstract: A method of manufacturing a light emitting element includes: forming a plurality of light emitting patterns on a stack substrate; forming a polysilazane layer on the plurality of light emitting patterns; forming a first insulating film by curing the polysilazane layer; and forming a second insulating film on the first insulating film. The forming of the first insulating film includes photocuring the polysilazane layer by irradiating ultraviolet rays onto the polysilazane layer. The forming of the plurality of light emitting patterns includes: forming a light emitting stack structure on the stack substrate; and etching the light emitting stack structure.

Abstract: A light emitting element includes: a light emitting stack pattern including a first semiconductor layer, an active layer, and a second semiconductor layer that are sequentially stacked along one direction; and an insulating film surrounding an outer surface of at least one of the first semiconductor layer, the active layer, and the second semiconductor layer. The insulating film including a zinc oxide (ZnO) thin film layer.

Abstract: A light-emitting element ink and a method of manufacturing a display device using the light-emitting element ink are provided. The light-emitting element ink comprises a solvent, a dispersant mixed with the solvent, and a plurality of light-emitting elements dispersed in the solvent, each of the light-emitting elements including a plurality of semiconductor layers and an insulating film surrounding parts of outer surfaces of the semiconductor layers, wherein the dispersant includes an aqueous dispersant or an organic dispersant, if the dispersant is the aqueous dispersant, the solvent has a hydrogen bonding parameter, of Hansen's solubility parameters, of less than 7, and if the dispersant is the organic dispersant, the solvent has a hydrogen bonding parameter, of Hansen's solubility parameters, of 7 or greater.

Abstract: A display device includes: a first substrate; a second substrate overlapping the first substrate; a common electrode disposed on the second substrate; a column spacer disposed between the pixel electrode and the common electrode; and a plurality of pixels. Each of the plurality of pixels includes a transistor disposed on the first substrate and a pixel electrode electrically connected to the transistor through a hole. The display device further includes a plurality of column spacers disposed between the pixel electrode and the common electrode. The plurality of column spacers include a main spacer having a first height and a sub-spacer having a second height that is different from the first height. At least one of the main spacer and the sub-spacer includes a first spacer having a first planar area and a second planar spacer having a second planar area that is different from the first planar area.

Abstract: An ink includes a solvent, and light-emitting elements dispersed in the solvent, each of the light-emitting elements comprising semiconductor layers and an insulating film partially surrounding outer surfaces of the semiconductor layers, wherein the solvent has Hansen solubility parameters of a polarity parameter between about 4 and about 9 and a hydrogen bonding parameter between about 6 and about 11.

Abstract: An ink for manufacturing a display device includes a solvent; and light emitting elements disposed in the solvent, wherein the light emitting elements include a first semiconductor layer including a first type of semiconductor and a second semiconductor layer including a second type of semiconductor, and an electrical conductivity of the ink is about 1.5 ?S/m or less. Also provided are a method of manufacturing a display device using the ink and a display device manufactured by the method.

Abstract: A light emitting element ink comprises a light emitting element solvent, a light emitting element dispersed in the light emitting element solvent, the light emitting element including a plurality of semiconductor layers, and an insulating film surrounding outer surfaces of the plurality of semiconductor layers, and a thickener dispersed in the light emitting element solvent, wherein the thickener includes a compound represented by Chemical Structural Formula 1 as a polyol-based compound capable of forming a hydrogen bond with the light emitting element solvent or another thickener, and the thickener has a boiling point in a range of about 200° C. to about 450° C.

Abstract: A light-emitting element ink, a display device, and a method of fabricating the display device are provided. The light-emitting element ink includes a light-emitting element solvent, light-emitting elements dispersed in the light-emitting element solvent, each of the light-emitting elements including a plurality of semiconductor layers and an insulating film that surrounds parts of outer surfaces of the semiconductor layers, and a surfactant dispersed in the light-emitting element solvent, the surfactant including a fluorine-based and/or a silicon-based surfactant.

Abstract: A light emitting element ink and a method of manufacturing a display device are provided. The light emitting element ink includes a light emitting element solvent, a light emitting element dispersed in the light emitting element solvent, the light emitting element including a plurality of semiconductor layers and an insulating film surrounding outer surfaces of the semiconductor layers, a thickener dispersed in the light emitting element solvent, wherein a compound of the thickener includes a functional group capable of forming a hydrogen bond together with a compound of the light emitting element solvent or another compound of the thickener and the compound of the thickener is represented by Chemical Formula 1.

Abstract: A display device includes: a first substrate; a second substrate overlapping the first substrate; a common electrode disposed on the second substrate; a column spacer disposed between the pixel electrode and the common electrode; and a plurality of pixels. Each of the plurality of pixels includes a transistor disposed on the first substrate and a pixel electrode electrically connected to the transistor through a hole. The display device further includes a plurality of column spacers disposed between the pixel electrode and the common electrode. The plurality of column spacers include a main spacer having a first height and a sub-spacer having a second height that is different from the first height. At least one of the main spacer and the sub-spacer includes a first spacer having a first planar area and a second planar spacer having a second planar area that is different from the first planar area.

Abstract: The present invention relates to a method for controlling the frequency of a stand-alone microgrid wherein an energy storage device of the stand-alone microgrid is operated as a main power source by controlling a battery power conditioning system (PCS) of the stand-alone microgrid in a constant voltage constant frequency (CVCF) mode. According to the present invention, it is possible to operate the frequency stably while considering the fuel cost and power generation efficiency of a stand-alone microgrid.

Abstract: The present invention relates to a power conditioning system (PCS) efficiency-considered microgrid operation device comprising: a scheduling unit for scheduling outputs of a controllable load, a battery, and an emergency internal combustion generator operated in a microgrid; and an operation control unit for controlling the operation of the battery, the emergency internal combustion generator, and the controllable load according to charging/discharging of the battery, the output or the emergency internal combustion generator, and the output of the controllable load, which have been scheduled by the scheduling unit, wherein the scheduling unit schedules charging/discharging by considering the efficiency of a PCS such that a mate of charge (SOC) of the battery is maintained within a preset range. According to the present invention, the microgrid can be efficiently operated by considering the charging/discharging efficiency of the PCS.