Abstract: The present invention relates to a 3D printing device using selective electrochemical deposition and particularly to a 3D printing device capable of selectively depositing metal materials onto a substrate by using additive manufacturing by electrochemical deposition (electrochemical additive manufacturing, ECAM).

Abstract: The present invention relates to a three-dimensional printing device using selective electrochemical deposition and particularly to a three-dimensional printing device capable of selectively depositing metal materials onto a substrate by using additive manufacturing by electrochemical deposition (electrochemical additive manufacturing, ECAM).

Abstract: The present invention relates to a micro-lens array having a color-conversion function and provided in a micro-LED display module, a micro-LED display module including the micro-lens array, and a method for manufacturing the micro-lens array, An micro-lens array according to an embodiment of the present invention is provided in a micro-LED display module in which micro-LEDs themselves are used as light-emitting materials. The micro-lens array may comprise: a body; bank parts formed to be recessed inward from one surface of the body so as to be in one-to-one correspondence with the micro-LEDs, respectively; lens parts formed to protrude from the opposite surface of the body so as to be in one-to-one correspondence with the bank parts, respectively; a partition wall part formed between the bank parts; and a color-conversion part provided in each of the bank parts so as to convert the color of light emitted from each of the micro-LEDs.

Abstract: Provided is an electrochemical machine. More particularly, provided is an electrochemical machine which removes an electrolytic product generated while electrochemical machining (ECM) so as to improve the quality of ECM and allows micro ECM.

Abstract: Provided is a method of manufacturing an organic deposition mask used in manufacturing of an organic light emitting diode (OLED). More specially, provided is a method of manufacturing an organic deposition mask by which fine deposition openings may be formed on a thin board by electrochemical machining (ECM) using a multi array electrode having projecting electrode parts arrayed thereon. According to an embodiment of the present invention, the method of manufacturing an organic deposition mask including deposition openings formed of first openings facing a deposition source and second openings facing a deposited object, the method may include: forming the first openings on one side of a thin board; and forming the second openings on an opposite side of the thin board by electrochemical machining (ECM) using a second multi array electrode having second projecting electrode parts arrayed thereon so as to communicate with the first openings.

Abstract: Provided is a method of manufacturing an organic deposition mask used in manufacturing of an organic light emitting diode (OLED). More specially, provided is a method of manufacturing an organic deposition mask by which fine deposition openings may be formed on a thin board by electrochemical machining (ECM) using a multi array electrode having projecting electrode parts arrayed thereon. According to an embodiment of the present invention, the method of manufacturing an organic deposition mask including deposition openings formed of first openings facing a deposition source and second openings facing a deposited object, the method may include: forming the first openings on one side of a thin board; and forming the second openings on an opposite side of the thin board by electrochemical machining (ECM) using a second multi array electrode having second projecting electrode parts arrayed thereon so as to communicate with the first openings.

Abstract: Provided is an electrochemical machine. More particularly, provided is an electrochemical machine which removes an electrolytic product generated while electrochemical machining (ECM) so as to improve the quality of ECM and allows micro ECM.

Abstract: A three-dimensional (3D) printing apparatus using selective electrochemical deposition is provided. The 3D printing apparatus is used to selectively deposit a metallic material on a substrate using a nozzle for jetting an electrolyte at a predetermined pressure to enhance 3D printing speed of a metallic product stacked on the substrate. The 3D printing apparatus is configured in such a way that a metallic product is 3D-printed as a metallic material is selectively deposited on the substrate while the electrolyte is continuously jetted at a predetermined pressure and, thus, 3D printing speed of a metallic product stacked on the substrate is remarkably increased compared with the case according to the prior art (Korean Publication No. 10-2015-0020356) in which plating is performed only when a meniscus is formed. Accordingly, the 3D printing apparatus is also applied to 3D printing of a bulk type of a metallic product with a comparatively large shape.

Abstract: A light emitting diode (LED) lens for a backlight unit for uniformly distributing light emitted from an LED chip that emits light via a volume source. The LED lens for a backlight unit includes a lower surface including an incident surface through which light emitted from the LED chip is incident upon the LED lens, an emissive surface from which the light incident upon the LED lens is emitted, and a total-reflection surface included in the lower surface so as to total-reflect the light emitted from the LED chip and incident upon the LED lens toward the emissive surface, wherein the total-reflection surface includes a first total-reflection surface convex downward and a second total-reflection surface connected to the first total-reflection surface and convex upward, and an inflection point is formed between the first total-reflection surface and the second total-reflection surface.

Abstract: A side-emitting LED lens includes a bottom surface having an incident surface through which light from the LED enters, a top surface that reflects light, and a side surface which connects the bottom surface to the top surface, and through which light exits the lens. Within the incident surface, a central area directs light emitted from the LED to the top surface by refracting the light in a direction away from the optical axis, whereby the height of the lens can be reduced. A surrounding area connected to the central area directs light emitted from the LED to the top surface by refracting the light in a direction toward the optical axis, whereby the width or radius of the lens can be reduced.

Abstract: The present invention relates to a lens for a light-emitting diode, and to a backlight unit and display device including same, and more particularly, to a lens for a light-emitting diode (LED), which is disposed on the LED to uniformly diffuse the light emitted from the LED and which is reduced in overall volume as well as in luminance deviation in the vicinity of the optic axis of the LED due to Fresnel reflection, and to a backlight unit (BLU) and display device including same.

Abstract: The present invention relates to a solar cell assembly and a high concentration solar cell module including the same and, particularly, to a solar cell assembly which can improve a heat radiating function and assembling efficiency with only a simple configuration and a high concentration solar cell module which can easily assemble the solar cell assembly. The solar cell assembly, according to the present invention, comprises: a heat pipe elongated in the length direction; a circuit board on which a plurality of solar cells are mounted, and which is attached to the heat pipe; and a wire for enabling the plurality of solar cells to conduct electricity.

Abstract: The present invention relates to a lens for a light-emitting diode, and to a backlight unit and display device including same, and more particularly, to a lens for a light-emitting diode (LED), which is disposed on the LED to uniformly diffuse the light emitted from the LED and which is reduced in overall volume as well as in luminance deviation in the vicinity of the optic axis of the LED due to Fresnel reflection, and to a backlight unit (BLU) and display device including same.

Abstract: A side-emitting LED lens includes a bottom surface having an incident surface through which light from the LED enters, a top surface that reflects light, and a side surface which connects the bottom surface to the top surface, and through which light exits the lens. Within the incident surface, a central area directs light emitted from the LED to the top surface by refracting the light in a direction away from the optical axis, whereby the height of the lens can be reduced. A surrounding area connected to the central area directs light emitted from the LED to the top surface by refracting the light in a direction toward the optical axis, whereby the width or radius of the lens can be reduced.