Abstract: An electrodeionization filter includes: a housing having a water inlet and a water outlet; a first electrode installed inside the housing in a spiral shape; a second electrode installed inside the housing in a spiral shape so as to be spaced apart from the first electrode; and an ion exchange module installed between the first electrode and the second electrode for adsorbing or desorbing ionic substances contained in water introduced by an application of electricity. At least one of the first electrode and the second electrode has a structure in which a center portion thereof is denser than a peripheral region thereof. Accordingly, the lifespan of the electrodes of the electrodeionization filter can be increased, and the assembly of the electrodes and related parts can be easily facilitated.

Abstract: Disclosed is an electrode whose surface includes an organic/inorganic composite porous coating layer comprising heat-absorbing inorganic particles and a binder polymer, wherein the heat-absorbing inorganic particle is at least one particle selected from the group consisting of antimony-containing compounds, metal hydroxides, guanidine-based compounds, born-containing compounds and zinc tartrate compounds. A separator using the heat-absorbing inorganic particles as a component for forming or coating the separator, and an electrochemical device including the electrode and/or the separator are also disclosed. The separator using the heat-absorbing inorganic particles as a component for forming or coating the separator can ensure excellent thermal safety and minimizes degradation of the quality of a battery.

Abstract: A printed circuit board includes an insulating layer, a circuit pattern on the insulating layer, and a surface treatment layer on the circuit pattern. The surface treatment layer includes a bottom surface having a width wider than a width of a top surface of the circuit pattern.

Abstract: Disclosed are a solid electrolyte composite having high flexibility and strength, a method of manufacturing the same and an electrochemical device including the same. The solid electrolyte composite includes a matrix including a solid electrolyte, and fibrous polymers located in the same layer as the matrix and distributed in the matrix, and is manufactured by preparing a first solution including a polymer material, preparing a second solution including a solid electrolyte, producing fibrous polymers by electrospinning the first solution and simultaneously obtaining a structure configured such that the solid electrolyte is loaded between the fibrous polymers by electrospraying the second solution, and pressing the structure.

Abstract: Disclosed is a head mounted display (HMD) device. A HMD device for providing a service that provides a virtual reality (VR) image comprises: a display; a sensor for sensing a direction to which the HMD device is oriented; and a processor for controlling the display to provide a first part of the VR image when the sensed direction to which the HMD device is oriented is changed within a predetermined range on the basis of the front of a user, and to provide a second part of the VR image when the sensed direction to which the HMD device is oriented is changed to escape from the predetermined range on the basis of the front of the user.

Abstract: The present invention relates to a three-dimensional structure electrode, a method for manufacturing same, and an electrochemical element including the electrode. The present invention is characterized by comprising: (a) an upper conductive layer and a lower conductive layer which have a structure constituting an assembly within which a conductive material and a porous nonwoven fabric including a plurality of polymeric fibers are three-dimensionally connected in an irregular and continuous manner, thereby forming a mutually connected porous structure; and (b) an active material layer forming the same assembly structure as the conductive layers and forming a three-dimensionally filled structure in which electrode active material particles are uniformly filled inside the mutually connected porous structure formed in the assembly structure, wherein the active material layer is formed between the upper conductive layer and the lower conductive layer.

Abstract: A printed circuit board includes an insulating layer, a circuit pattern on the insulating layer, and a surface treatment layer on the circuit pattern. The surface treatment layer includes a bottom surface having a width wider than a width of a top surface of the circuit pattern.

Abstract: Disclosed is a head mounted display (HMD) device. A HMD device for providing a service that provides a virtual reality (VR) image comprises: a display; a sensor for sensing a direction to which the HMD device is oriented; and a processor for controlling the display to provide a first part of the VR image when the sensed direction to which the HMD device is oriented is changed within a predetermined range on the basis of the front of a user, and to provide a second part of the VR image when the sensed direction to which the HMD device is oriented is changed to escape from the predetermined range on the basis of the front of the user.

Abstract: A display device and a method thereof are provided. The display device includes a display, a communicator, and a processor to display a virtual reality (VR) content on the display, in response to a trigger signal and motion information to change a display viewpoint area of the VR content being received from a user terminal device through the communicator, control the display to display by changing a display viewpoint area of the VR content based on first motion direction included in the motion information until a predetermined signal is received. In response to the predetermined signal being received from the user terminal device, control the display to terminate changing the display viewpoint area.

Abstract: The disclosure discloses a display device and a frame member. A display device according to an aspect of the disclosure includes a bezel that forms a border of a display and a frame fixed to the bezel to hide a front surface of the bezel. The bezel includes at least one first member, the frame includes a plurality of frame pieces, and each of the plurality of frame pieces includes at least one second member and is fixed to the bezel by an attractive force between the first member and the second member.

Abstract: The teachings herein relate to a gel polymer electrolyte, manufacturing of a gel polymer electrolyte, and an electrochemical device including the gel polymer electrolyte. The present gel polymer electrolyte preferably includes a multi-component crosslinked polymer matrix; a dissociable salt; and an organic solvent. The content of the multi-component crosslinked polymer matrix preferably is 1 to 50 weight percent and preferably has a net structure formed by crosslinking at least three different kinds of cross-linkable monomers. Each of the cross-linkable monomers preferably includes at least two of the following functional groups: a carboxylic group, an acrylate group, or a cyano group. The method of manufacturing the gel polymer electrolyte preferably uses a thermal crosslinking or photo-crosslinking process.

Abstract: An electrolyte complex for a lithium-sulfur battery, which can improve battery capacity and life characteristic by applying different solid electrolytes to each of the positive electrode and the negative electrode of an electrochemical device, and can reduce the interfacial resistance between the electrolyte and the electrode by integrating the solid electrolyte and the electrode; an electrochemical device including the same; and a method for preparing the same. The electrolyte complex for a lithium-sulfur battery includes a first and a second phase-separated solid electrolytes, wherein the first electrolyte positioned to the positive electrode side and the second electrolyte positioned to the negative electrode side form a layered structure.

Abstract: The present invention relates to an electrochemical device allowing charge and discharge of electric energy by an electrochemical reaction, and a method of manufacturing the same. More particularly, the present invention relates to an electrochemical device which does not require a separate terminal, and a method of continuously producing the same.

Abstract: A display apparatus includes a communication circuitry configured to communicate with an external device; a display; and a controller configured to perform pairing with the external device, to control the communication circuitry to receive an image around the display apparatus captured by the external device from the paired external device, to apply a plurality of colors selected based on color data of the plurality of colors extracted from the received image, to a plurality of predetermined regions, to generate an image based on the plurality of regions to which the selected plurality of colors are applied, and to control the display to display the generated image.

Abstract: A display device and a method thereof are provided. The display device includes a display, a communicator, and a processor to display a virtual reality (VR) content on the display, in response to a trigger signal and motion information to change a display viewpoint area of the VR content being received from a user terminal device through the communicator, control the display to display by changing a display viewpoint area of the VR content based on first motion direction included in the motion information until a predetermined signal is received. In response to the predetermined signal being received from the user terminal device, control the display to terminate changing the display viewpoint area.

Abstract: A printed circuit board includes an insulating layer, a circuit pattern on the insulating layer, and a surface treatment layer on the circuit pattern. The surface treatment layer includes a bottom surface having a width wider than a width of a top surface of the circuit pattern.

Abstract: A semiconductor device includes a dielectric layer, a conductive layer formed over the dielectric layer, and a reduction sacrificial layer formed between the dielectric layer and the conductive layer, wherein the reduction sacrificial layer includes a first reduction sacrificial material having higher electronegativity than the dielectric layer, and a second reduction sacrificial material having higher electronegativity than the first reduction sacrificial material.

Abstract: The disclosure discloses a display device and a frame member. A display device according to an aspect of the disclosure includes a bezel that forms a border of a display and a frame fixed to the bezel to hide a front surface of the bezel. The bezel includes at least one first member, the frame includes a plurality of frame pieces, and each of the plurality of frame pieces includes at least one second member and is fixed to the bezel by an attractive force between the first member and the second member.