Abstract: A flat display and a method of fabricating the same, in which the fabrication of the flat display is facilitated by employing a plate-to-plate method. The method of fabricating a flat display panel includes the steps of forming an optical bonding resin layer by applying an optical bonding resin on the underside of a transparent film, attaching a filter to the upper surface of the transparent film, and attaching the optical bonding resin layer to the upper surface of a display panel using a plate-to-plate method.
Abstract: A porous glass substrate for displays and a method of manufacturing the same, with which the optical characteristics of a display such as an organic light-emitting device (OLED) can be improved. The porous glass substrate includes a glass substrate and a porous layer formed in at least one portion of one surface of the glass substrate and extending into the glass substrate, the refractive index of the porous layer being smaller than the refractive index of the glass substrate. The porous layer has a plurality of pores which is formed in the glass substrate such that at least one component of the glass substrate except for silicon dioxide (SiO2) is eluted from the glass substrate.
Abstract: A glass substrate laser cutting device according to the invention includes: a working table that has a plurality of vacuum absorbing grooves; a laser cutter; a pressure sensor that measures a pressure sensor when suctioning the glass substrate in a vacuum state; a calculation processing unit that compares the vacuum pressure measured by the pressure sensor with a predetermined threshold pressure and determines whether the glass substrate is broken; a laser cutter that includes a leaser head moving along the cutting direction of the glass substrate and emitting a laser beam; and an optical sensor that is attached to the laser head so as to move together and is disposed at a point in front of the laser beam emitted to the outside so as to detect the breakage of the glass substrate.
Abstract: Disclosed herein is a breaking apparatus for glass substrates. The breaking apparatus includes a breaking bar connected to a linear driver, a plurality of linear bushes longitudinally mounted on the breaking bar and each including an outer barrel, a plurality of buffer cylinders longitudinally mounted on the breaking bar, and a breaking tip extending in one direction and having a bar shape with a predetermined width. Each of the buffer cylinders includes a hollow cylinder body generating pressure therein, a piston received in the cylinder body, and a piston rod connected to the piston. The breaking tip is disposed in a longitudinal direction of the breaking bar beneath the breaking bar and connected to the piston rods and the shafts to be brought into contact with a glass substrate.
Abstract: Provided are a multi-layered structure electrolyte including a gel polymer electrolyte on opposite surfaces of a ceramic solid electrolyte, for a lithium ion secondary battery including positive and negative electrodes capable of intercalating/deintercalating lithium ions, and a lithium ion secondary battery including the electrode. The electrolyte includes a gel polymer electrolyte on opposite surfaces of a ceramic solid electrolyte.
Abstract: A lithium ion secondary battery and a method for preparing the same are provided. The lithium ion secondary battery includes a positive electrode having a positive active material represented by Formula (1), a negative electrode and an electrolyte, wherein the positive active material is activated by performing a first charge operation with a voltage ranging from 4.5 V to 4.7 V and the voltage is then reduced to less than 4.5 V: aLi2MnO3-(1-a)LiMO2??(1) where M is at least one selected from the group consisting of Ni, Co and Mn, and 0<a<1.
Abstract: Provided are a lithium manganese oxide positive active material for a lithium ion secondary battery and a lithium ion secondary battery including the same. The lithium manganese oxide positive active material includes a spinel lithium manganese oxide of three or more types of particles having different sizes mixed therein, wherein first type particles have an average diameter of 5 ?m or greater, second type particles have an average diameter of 1 ?m or less, third type particles have an average diameter of 200 nm or less, and the average diameter of the second type particles is greater than that of the third type particles.
Abstract: Provided is a positive electrode for a lithium ion secondary battery sequentially including a positive electrode collector, a positive electrode active material layer able to insert/extract lithium ions, and a lithium ion conductive layer.
Abstract: Provided are a composite positive electrode active material, an electrode for a lithium secondary battery including the composite positive electrode active material, and a lithium secondary battery, and more particularly, a composite positive electrode active material including lithium composite oxide, activated carbon, and carbon black, an electrode for a lithium secondary battery including the composite positive electrode active material, and a lithium secondary battery. The present disclosure may provide a lithium secondary battery having improved rate characteristics in a low-temperature atmosphere.
Abstract: Provided are a method of preparing carbon nanotube-olivine type lithium manganese phosphate composites and a lithium secondary battery using the same. The method includes acid-treating a carbon nanotube to purify the carbon nanotube by adding an acid solution to the carbon nanotube, forming a precursor mixture of the carbon nanotube and a metal precursor of olivine type lithium manganese phosphate, and heat-treating the precursor mixture. The carbon nanotube-olivine type lithium manganese phosphate composites can provide high energy density per unit volume and can improve output characteristics.
Abstract: Provided are a positive electrode active material, a method of preparing the same, and a lithium secondary battery using the positive electrode active material, and more particularly, a positive electrode active material in which a surface of layer-structured lithium transition metal composite oxide is coated with one or more indium-based compounds selected from the group consisting of indium oxides and alloys including indium, a method of preparing the positive electrode active material, and a lithium secondary battery using the positive electrode active material. According to the present disclosure, degradation of cycle characteristics according to repetitive discharge of a battery may be prevented and thermal stability and rate characteristics may be improved.
Abstract: Provided is a positive electrode active material for a lithium ion secondary battery expressed by the following Chemical Formula 1 and containing antimony.
Abstract: Provided is a positive electrode active material for a lithium ion secondary battery including layer-structured lithium metal oxide expressed by the following Chemical Formula 1 and at least one selected from the group consisting of spinel-structured lithium metal oxides and olivine-structured lithium metal oxides. xLiMO2ยท(1?x)Li2MnO3??(1) (where M is one or more selected from the group consisting of nickel (Ni), cobalt (Co), and manganese (Mn), and 0<x<1.
Abstract: A cover substrate for a photovoltaic module and a photovoltaic module having the same, in which light energy is converted into electrical energy. The cover substrate includes a substrate having a raised array pattern on a surface on which light is incident, and an anti-reflection film formed on the surface on which light is incident.
Abstract: Provided are a positive active material including a spinel lithium manganese oxide surface-coated with one or more types of nanoparticles selected from olivine-type lithium metal phosphate and metal oxide, a method of preparing the same and a lithium secondary battery using the same. The positive active material provides a lithium secondary battery having improved high-temperature cycle life characteristic and capacity per weight.
Abstract: A high frequency heating apparatus which heats a substrate by applying high frequency waves thereto. The high frequency heating apparatus includes a high frequency generator which generates high frequency to heat the substrate. The distance from the substrate to the high frequency generator is n/2*?, where n is a natural number ranging from 1 to 6, and ? is the wavelength of the high frequency that is generated by the high frequency generator.
Abstract: A high frequency heating apparatus which heats a substrate by applying high frequency waves. The high frequency heating apparatus includes a high frequency generator which generates high frequency to heat the substrate and a reflector which reflects the high frequency generated by the high frequency generator toward the substrate.
Abstract: An apparatus for measuring the transmittance of a piece of cover glass for a photovoltaic cell which can measure an accurate transmittance irrespective of whether or not the cover glass has a pattern and irrespective of the shape of the pattern. The apparatus includes a light source part disposed in front of the piece of cover glass. The light source part directs light into the piece of cover glass. A detector is disposed in the rear of the piece of cover glass, and detects light that has been directed into the piece of cover glass and then has passed through the piece of cover glass. The detector is disposed within a range where the intensity of the light that has passed through the piece of cover glass is uniform.
Abstract: An oxide thin film substrate which has a high haze value, a method of manufacturing the same, and a photovoltaic cell and organic light-emitting device including the same. The oxide thin film substrate includes a base substrate having a first texture on the surface thereof and a transparent oxide thin film formed on the base substrate. The transparent oxide thin film has a second texture on the surface thereof.
Abstract: A conductive film substrate, a photovoltaic cell having the same, and a method of manufacturing the same. The conductive film substrate includes a base substrate and a transparent conductive film formed on the base substrate. The transparent conductive film is a zinc oxide thin film which has first texture structures and second texture structures concurrently formed on a surface thereof. The second texture structures are smaller than the first texture structures.