Abstract: The present disclosure relates to a lithium secondary battery in which an abnormal voltage drop phenomenon is improved. The lithium secondary battery comprises a negative electrode comprising a negative electrode active material, a positive electrode comprising a positive electrode active material represented by Formula 1, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte solution, wherein the non-aqueous electrolyte solution comprises a lithium salt, a non-aqueous organic solvent, a compound represented by Formula 2 as a first additive, and lithium difluorophosphate as a second additive: LiaNixCOyM1zM2wO2??[Formula 1] wherein all the variables are described herein.

Abstract: A protection film for an electronic device includes an adhesive layer including a first surface to which an electronic device is attached, and a film layer which contacts a second surface of the adhesive layer and includes at least one member, where a thickness of the adhesive layer satisfies Inequality 1: z?(5.1x+57.4)·ln(y)?(14.7x+140.5), where z is the thickness of the adhesive layer in terms of micrometers, x is a modulus of a member of the film layer which directly contacts the adhesive layer in terms of gigapascals, and y is a total thickness of the film layer in terms of micrometers.

Abstract: A conductive composite material, a method of preparing the same, and a secondary battery including the same. The conductive composite material may increase the proportion of an active material when forming an electrode by chemically bonding a conductive material and a binder to each other. A method of preparing the conductive composite material comprises ionizing carbon-based particles in a predetermined polarity, ionizing PTFE particles in a polarity different from that of the carbon-based particles, and chemically bonding the ionized carbon-based particles and the ionized PTFE particles, which are ionized in different polarities, to each other.

Abstract: A display device includes a display module, a support plate disposed under the display module and including a first support plate, a second support plate, and a plurality of support joints disposed between the first and second support plates, and a cover film disposed under the support plate and covering the support joints. The support joints are not attached to the cover film.

Abstract: The present disclosure relates to an electrolyte injection system, and the electrolyte injection system is a system for injecting an electrolyte solution into a pouch in which an electrode assembly is embedded, the electrolyte injection system comprising: an injection pipe for injecting an electrolyte solution; an electrolyte solution supply portion supplying an electrolyte solution; and a manifold portion connecting an injection pipe and an electrolyte solution supply portion to prevent a reverse flow of the electrolyte solution and ensure precision of injection amount so that a large amount of electrolyte solution may be accurately and rapidly injected.

Abstract: Disclosed is an interface system including a first neuron cluster that outputs a first neuron signal including a first neuron request and first neuron data by performing a first arithmetic operation, and a first interface circuit that stores the first neuron data and outputs a first response, in response to the first neuron request. The first neuron cluster outputs a second neuron signal including a second neuron request and second neuron data by performing a second arithmetic operation, in response to the first response. Before the first data is transmitted to a second neuron cluster different from the first neuron cluster, the first interface circuit outputs the first response in response to a fact that the first neuron data is stored.

Abstract: A smart drilling system includes a terminal configured to map a design space to an actual space and having perforation location information in the design space, a drilling machine including a drill for perforation and configured to perform perforation in the actual space under control of the terminal based on the perforation location information, and a total station configured to acquire location information of a reference point in the actual space for mapping the design space to the actual space and location information of the drilling machine in the actual space, and to transmit the location information of the reference point in the actual space and the location information of the drilling machine to the terminal, wherein the terminal recognizes and displays a perforable region or a perforable point at a current position of the drilling machine.

Abstract: A protection film for an electronic device includes an adhesive layer including a first surface to which an electronic device is attached, and a film layer which contacts a second surface of the adhesive layer and includes at least one member, where a thickness of the adhesive layer satisfies Inequality 1: z?(5.1x+57.4)·ln(y)?(14.7x+140.5) where z is the thickness of the adhesive layer in terms of micrometers, x is a modulus of a member of the film layer which directly contacts the adhesive layer in terms of gigapascals, and y is a total thickness of the film layer in terms of micrometers.

Abstract: A method of manufacturing a display device includes preparing a window member including a first window including a display area, and a second window adjacent to a first side surface of the first window, forming a protective member on an upper surface of the window member by forming a preliminary protective layer on a first upper surface of the first window and on a second upper surface of the second window, and pre-curing the preliminary protective layer, and separating the second window from the first side surface.

Abstract: A protection film for an electronic device includes an adhesive layer including a first surface to which an electronic device is attached, and a film layer which contacts a second surface of the adhesive layer and includes at least one member, where a thickness of the adhesive layer satisfies Inequality 1: z?(5.1x+57.4)·ln(y)?(14.7x+140.5), where z is the thickness of the adhesive layer in terms of micrometers, x is a modulus of a member of the film layer which directly contacts the adhesive layer in terms of gigapascals, and y is a total thickness of the film layer in terms of micrometers.

Abstract: A display device which includes a display panel and a protection member above the display panel. The protection member may include an adhesive layer above the display panel, a first protection layer above the adhesive layer, and a second protection layer between the first protection layer and the adhesive layer. The first protection layer may have a first thickness and a first modulus, and the second protection layer may have a second thickness less than the first thickness and a second modulus less than the first modulus. The minimum value of the second thickness may be 20 ?m, and the maximum value of the second thickness may satisfy Equation (1) below. The display device, which includes the protection member including the second protection layer satisfying Equation (1), may improve impact resistance and maintain reliability. T2max=(0.13×T1?8.25)×ln M2+0.68×T1?5.

Abstract: A display device includes a display panel, a support member disposed below the display panel, and a cushion layer disposed below the support member and including a first cushion part overlapping a first non-folding region, and a second cushion part overlapping a second non-folding region, the support member including an upper plate, and a lower plate below the upper plate. The lower plate includes a first lower plate including a first horizontal part parallel to a plane defined by a first direction and a second direction intersecting the first direction, and a first vertical part extended from the first horizontal part and bent toward the first cushion part, and a second lower plate spaced apart from the first lower plate, and including a second horizontal part parallel to the plane, and a second vertical part extended from the second horizontal part and bent toward the second cushion part.

Abstract: A display device reduces or minimizes a stress applied to a display panel in a folded state. The display device includes a display panel including a bendable area; and a panel support portion combined to the display panel and including a multi-joint member to support the bendable area, and the multi-joint member includes: a plurality of hard material portions sequentially arranged in a first direction, mutually combined to be rotated with respect to one another, and including a first surface arranged toward the bendable area; and a soft material portion contacting the first surface and fixed to the plurality of hard material portions.

Abstract: A display device includes a display panel, a thin glass layer disposed on the display panel, a hot melt adhesive layer disposed between the display panel and the thin glass layer, and a functional film disposed between the hot melt adhesive layer and the thin glass layer.

Abstract: A protection film for an electronic device includes an adhesive layer including a first surface to which an electronic device is attached, and a film layer which contacts a second surface of the adhesive layer and includes at least one member, where a thickness of the adhesive layer satisfies Inequality 1: z?(5.1x+57.4)·ln(y)?(14.7x+140.5), where z is the thickness of the adhesive layer in terms of micrometers, x is a modulus of a member of the film layer which directly contacts the adhesive layer in terms of gigapascals, and y is a total thickness of the film layer in terms of micrometers.

Abstract: A display device including: a display panel configured to be folded about a first bending axis; a window member disposed on the display panel, the window member including a transparent material; and a functional layer disposed on the window member, the functional layer including a hydrophobic material and a first opening at a region corresponding to the first bending axis.

Abstract: A display device reduces or minimizes a stress applied to a display panel in a folded state. The display device includes a display panel including a bendable area; and a panel support portion combined to the display panel and including a multi-joint member to support the bendable area, and the multi-joint member includes: a plurality of hard material portions sequentially arranged in a first direction, mutually combined to be rotated with respect to one another, and including a first surface arranged toward the bendable area; and a soft material portion contacting the first surface and fixed to the plurality of hard material portions.

Abstract: A display device reduces or minimizes a stress applied to a display panel in a folded state. The display device includes a display panel including a bendable area; and a panel support portion combined to the display panel and including a multi-joint member to support the bendable area, and the multi-joint member includes: a plurality of hard material portions sequentially arranged in a first direction, mutually combined to be rotated with respect to one another, and including a first surface arranged toward the bendable area; and a soft material portion contacting the first surface and fixed to the plurality of hard material portions.

Abstract: A protection film for an electronic device includes an adhesive layer including a first surface to which an electronic device is attached, and a film layer which contacts a second surface of the adhesive layer and includes at least one member, where a thickness of the adhesive layer satisfies Inequality 1: z?(5.1x+57.4)·ln(y)?(14.7x+140.5), where z is the thickness of the adhesive layer in terms of micrometers, x is a modulus of a member of the film layer which directly contacts the adhesive layer in terms of gigapascals, and y is a total thickness of the film layer in terms of micrometers.

Abstract: A display device including: a display panel configured to be folded about a first bending axis; a window member disposed on the display panel, the window member including a transparent material; and a functional layer disposed on the window member, the functional layer including a hydrophobic material and a first opening at a region corresponding to the first bending axis.