Abstract: A window substrate for protecting an electronic display device, the window substrate includes: a first substrate; a second substrate; and an interlayer having opposed sides disposed between the first substrate and the second substrate, with one side of the interlayer being in contact with the first substrate, and the other side of the interlayer being in contact with the second substrate, wherein the first substrate has a first thickness, the second substrate has a second thickness, and the interlayer has a third thickness, and wherein the sum of the first thickness, the second thickness, and the third thickness is about 190 ?m or less.

Abstract: A method for producing a glass article is provided. The method for producing a glass article, the method including preparing a glass to be processed, the glass comprising a glass bulk and a low-refractive surface layer disposed on the glass bulk, and etching away the low-refractive surface layer to form an etched glass, wherein the etching away the low-refractive surface layer comprises: cleaning the low-refractive surface layer with an acid solution; and cleaning the low-refractive surface layer with a base solution after the cleaning it with the acid solution.

Abstract: A window member includes a window including a first flat part, a first pattern part disposed on a side of the first flat part and having a groove pattern, and a second flat part disposed on an opposite side of the first flat part, the first pattern part being disposed between the first flat part and the second flat part; and a first light-blocking member disposed on a surface of the first flat part and not overlapping the first pattern part or the second flat part in a plan view. The first light-blocking member includes a 1-1-th light-blocking member, a 1-2-th light-blocking member, and a 1-3-th light-blocking member facing the 1-1-th light-blocking member. The 1-1-th light-blocking member, the 1-2-th light-blocking member, and the 1-3-th light-blocking member define a first accommodation space. The 1-3-th light-blocking member is spaced apart from the 1-1-th light-blocking member to define a first open area.

Abstract: A glass composition, glass article prepared from the glass composition, and display device are provided. The glass article includes, as a glass composition, about 45 to about 65 mol % of SiO2, about 15 to about 25 mol % of Al2O3, about 15 to about 25 mol % of Na2O, and 0 to about 10 mol % of B2O3 based on a total weight of the glass composition, where the glass composition has a thermal expansion coefficient of about 70*10?7 K?1 to about 85*10?7 K?1.

Abstract: A display device includes a display panel; and a window disposed on an upper surface of the display panel, the window includes a first flat panel part; a second flat panel part disposed on a side of the first flat panel part in a first direction; and a first segment part disposed between the first flat panel part and the second flat panel part, the first segment part includes segments extended in a second direction intersecting the first direction and spaced apart from each other in the first direction; and bridges connecting both ends of each of the segments in the second direction, the segments and the bridges include a same material.

Abstract: A glass substrate has a first surface, a second surface opposite to the first surface, and a thickness from the first surface to the second surface. The glass substrate includes a first region, a second region, and a third region. The first region extends from the first surface a first depth into the glass substrate and has a first compressive stress. The second region extends from the second surface a second depth into the glass substrate and has a second compressive stress different from the first compressive stress. The third region is between the first region and the second region. In the glass substrate, the first compressive stress has a maximum value at a location between the first surface and the first depth, and the second compressive stress has a maximum value at a location between the second surface and the second depth.

Abstract: A glass strength evaluation apparatus includes a support unit, a plate disposed on the support unit and including a surface on which a glass article, which is a target to be tested, is disposed, a fixing jig disposed on the plate and a power unit lifting up or down the fixing jig in a vertical direction toward the surface of the plate. The fixing jig includes a body portion, which extends in the vertical direction and lower fixing bolts. A press-fitting member insertion opening is recessed from a bottom of the body portion to extend in an upward direction, lower fixing bolt insertion holes penetrate the body portion, from one side of the body portion, in a first horizontal direction intersecting the vertical direction, to be extended to the press-fitting insertion opening, and lower fixing bolts are coupled into the lower fixing bolt insertion holes.

Abstract: A window includes a body unit in which a plurality of grooves is defined, and a width of a groove of the plurality of grooves in a first direction which is parallel to a main extension direction of the body unit is about 80 micrometers (?m) to about 100 ?m.

Abstract: A display device includes a substrate including a first surface from which a pattern including an end portion is defined and a second surface which is parallel to the first surface. When an inner radius from a reference line positioned above the end portion and parallel with the first surface of the substrate to a surface of the pattern defining about 90 degrees is referred to as a first inner radius and an inner radius from the reference line to the surface of the pattern defining about 45 degrees is a second inner radius, a ratio of the second inner radius to the first inner radius is about 0.7 or more.

Abstract: Disclosed is a technology for performing, in an electronic apparatus included in a central station, an uplink- or downlink-related operation by allocating a transmission power intensity based on a transmission and reception capability of a terrestrial terminal.

Abstract: Disclosed is an operation method of an electronic apparatus assigning power based on a position of a terminal, the method including receiving data transmission requests from a first terrestrial terminal and a second terrestrial terminal, wherein the first terrestrial terminal and the second terrestrial terminal use overlapped frequency resources, and assigning a first transmission power intensity to the first terrestrial terminal and assigning a second transmission power intensity to the second terrestrial terminal based on a position of the first terrestrial terminal and a position of the second terrestrial terminal.

Abstract: The present invention relates to a drum magazine, and more particularly, to a drum magazine in which a wheel cover, which is configured to provide an elastic force via a mainspring to a bullet guide unit configured to elastically support a bullet loaded in a drum at a loading hole which is an inlet of the drum, is rotatably disposed at an outer surface of the drum, wherein, at the time of loading, an elastic latch unit is elastically engaged with an inner ring gear of the wheel cover and allows rotation of the wheel cover only in one direction so that a loading space at an entry of the loading hole that is provided due to arbitrary rotation of the wheel cover in the one direction is maintained as it is even when a user removes his or her hand from the magazine, and, after the loading is completed, a latch control unit configured to disengage the elastic latch unit and the inner ring gear is operated so that an elastic restoration force of the mainspring, which is accumulated due to the loading, is transmitted

Abstract: A cover window, a manufacturing method of a cover window, and a display device including a cover window are provided. A cover window includes a folding portion and a non-folding portion, and the folding portion includes an inside surface that is compressed when folded and an outside surface that is stretched when folded, the folding portion includes a first layer adjacent to the outside surface, a second layer adjacent to the inside surface, and a third layer between the first layer and the second layer, the folding portion and the non-folding portion include at least one metal ion, a concentration of the metal ion included in the second layer is higher than a concentration of the metal ion included in the first layer, and the first layer includes a plurality of depletion regions.

Abstract: A manufacturing method of a display device includes: forming a laminate by laminating resins on first and second side surfaces of a glass; removing the resins along a laser irradiation line by irradiating a laser on the laminate; separating the laminate into a plurality of laminates by performing primary etching using an etching liquid composition; vertically stacking the plurality of laminates; and performing secondary chemical etching on a structure formed by stacking the plurality of laminates.

Abstract: A glass polishing apparatus includes a jig that holds a glass structure. The glass polishing apparatus includes a first flat portion, a second flat portion opposite to the first flat portion, and a curved portion connecting the first flat portion to the second flat potion The jig and includes a first holding surface holding the first flat portion, a second holding surface disposed opposite to the first holding surface and holding the second flat portion, and a third holding surface connecting the first holding surface to the second holding surface and holding the curved portion. At least a portion of a roller unit having a cylindrical shape is inserted between the first flat portion and the second flat portion.

Abstract: A wafer cleaning method is provided. The wafer cleaning method includes providing a wafer on a stage that is inside of a chamber. The wafer is fixed to the stage by moving a grip pin connected to an edge of the stage. First ultrapure water is supplied onto the wafer while the wafer is rotating at a first rotation speed. The grip pin is released from the wafer by moving the grip pin. A development process is performed by supplying liquid chemical onto the wafer while the wafer is rotating at a second rotation speed that is less than the first rotation speed.

Abstract: A method of manufacturing a cover window for a display device includes: providing a glass substrate having a bendable area and a flat area; modifying the bendable area by irradiating the glass substrate with a beam; and etching the bendable area to have a thinner thickness than the flat area. The bendable area may have a faster etch rate than the flat area due to the modifying of the bendable area.

Abstract: The present invention provides a hinge structure for an air bag door. The hinge structure includes a housing disposed inside a crash pad, an air bag disposed inside the housing, an air bag door disposed on a rear surface of the crash pad adjacent to the air bag, a hinge portion disposed on at least a portion of a rear surface of the air bag door, and a scrim member disposed at least a portion of the hinge portion, the housing and the air bag door, all the components constituting an air bag assembly, wherein the hinge portion is constructed so as to break when the air bag door is opened, and the scrim member serves to enable the air bag door to be opened while being connected to the housing after the hinge portion breaks.