Abstract: A water-based composition is used to form an electron and includes a carbonaceous compound, a silicate compound, and water. The electron emitter includes a carbonaceous compound and a silicate compound and is prepared using the water-based composition, and an electron emission device includes the electron emitter. The water-based composition that is used to form an electron emitter is suitable for forming a distinctive pattern, and the electron emitter prepared using the water-based composition has very small residual carbon content.

Abstract: An electron emission device and a light emission apparatus including the same are provided. The electron emission device and the light emission apparatus including the same have a local dimming capability. The electron emission device includes a substrate; first electrodes spaced apart from one another and extending in a first direction on the substrate; second electrodes disposed between the first electrodes and extending in parallel with the first electrodes; a plurality of third electrodes electrically insulated from the first electrodes and the second electrodes, and extending in a direction crossing the first direction; and first electron emission units and second electron emission units, which are respectively formed on side surfaces of the first electrodes and the second electrodes.

Abstract: Electron emission devices include first electrodes on a substrate extending in a first direction and spaced apart from each other. Second electrodes are on the substrate alternating between the first electrodes and extending in a second direction opposing the first direction. First electron emitters and second electron emitters are on side surfaces of the first electrodes and the second electrodes, respectively. Gaps are formed between the first electron emitters and second electron emitters.

Abstract: An electron emission device includes a base substrate, at least one isolation layer on the base substrate, the isolation layer having a first lateral side and a second lateral side opposite the first lateral side, first and second electrodes on the base substrate along the first and second lateral sides of the isolation layer, respectively, a first electron emission layer between the first electrode and the first lateral side of the isolation layer, and a second electron emission layer between the second electrode and the second lateral side of the isolation layer.

Abstract: An electron emission type backlight unit which may include a front substrate and a rear substrate, a gate electrode, an insulating unit disposed on the gate electrode, a cathode disposed on the insulating unit that intersects the gate electrode, a first opening formed in the cathode to expose the gate electrode, a second opening formed in the insulating unit to expose the gate electrode, in which the second opening connects to the first opening, an electron emitting unit disposed on the cathode that exposes the gate electrode, in which the electron emitting unit is formed to trace along a boundary of the cathode that defines the first opening, an auxiliary gate electrode disposed on the gate electrode, in which the auxiliary gate electrode passes through the first opening and the second opening; and an anode and a light emitting unit.

Abstract: A light emission device with improved high voltage stability, and a display device having the light emission device as its light source, the light emission device comprising front and rear substrates disposed to face each other, an electron emission unit disposed on the front substrate and having a plurality of electron emission elements, and a light emission unit including a metal reflective layer formed on the rear substrate and a phosphor layer formed on the metal reflective layer. Each of the electron emission elements includes first electrodes, second electrodes arranged between the first electrodes, and electron emission regions electrically connected to the first electrodes and having a thickness smaller that of the first electrodes.

Abstract: A light emission device for improving high voltage stability and a display device using the same as a light source includes first and second substrates facing each other, an electron emission unit located on one side of the first substrate and including a plurality of electron emission elements, and a light emission unit located on one side of the second substrate and emitting a visible light. Each of the electron emission elements includes first electrodes spaced apart from each other by a predetermined interval along a first direction of the first substrate, second electrodes arranged between the first electrodes along the first direction, and first electron emission regions electrically connected to the first electrodes and formed at a predetermined height lower than that of the first electrodes.

Abstract: A filter assembly, a plasma display panel with the filter assembly and a method of manufacturing the filter assembly. The plasma display panel includes a panel assembly, a chassis base on which a driving circuit is mounted and located on a rear of the panel assembly, a filter assembly mounted in front of the panel assembly, and a case that accommodates the panel assembly, the chassis base, and the filter assembly. The filter assembly includes a transparent substrate, an anti-reflection film, and an electromagnetic wave shielding filter attached to the rear surface of the substrate, and the electromagnetic wave shielding filter is grounded to the inner side of the case and is made of a metal mesh that includes a plating layer and a strike seed layer.

Abstract: An electron emission device effectively blocks an electric field generated by an anode, consistently and stably emits electrons at a low gate voltage, and provides a high luminous uniformity and luminous efficiency. In addition, a flat display apparatus using the electron emission device as a backlight unit (BLU) and a method of driving the light emission device are provided.

Abstract: An electron emission type backlight unit which may include a front substrate and a rear substrate, a gate electrode, an insulating unit disposed on the gate electrode, a cathode disposed on the insulating unit that intersects the gate electrode, a first opening formed in the cathode to expose the gate electrode, a second opening formed in the insulating unit to expose the gate electrode, in which the second opening connects to the first opening, an electron emitting unit disposed on the cathode that exposes the gate electrode, in which the electron emitting unit is formed to trace along a boundary of the cathode that defines the first opening, an auxiliary gate electrode disposed on the gate electrode, in which the auxiliary gate electrode passes through the first opening and the second opening; and an anode and a light emitting unit.

Abstract: An electron emission device having improved electron emission efficiency and an electron emission type backlight unit including the electron emission device in which an electric field between an anode electrode and a cathode electrode is effectively blocked, and electrons are emitted continuously and stably by a low gate voltage, thereby improving light-emitting uniformity and light-emitting efficiency. Also provided is a flat display apparatus employing the electron emission type backlight unit having the electron emission device. The electron emission device includes a base substrate; an insulating layer disposed on a surface of the base substrate; a cathode electrode formed on the insulating layer; a gate electrode that is formed on the base substrate, separated from the cathode electrode, and higher than the cathode electrode; and an electron emission layer that is electrically connected to the cathode electrode and disposed to face the gate electrode.

Abstract: An electron emission device with improved electron emission efficiency and an electron emission type backlight unit with a new structure using the electron emission device in which an electric field between an anode electrode and a cathode electrode is effectively blocked, and electrons are emitted continuously and stably by a low gate voltage, thereby improving light-emitting uniformity and efficiency. Also provided is a flat display apparatus employing the electron emission type backlight unit having the electron emission device. The electron emission device includes a base substrate; a cathode electrode formed on the base substrate having a cross-section whose height is greater than its width; a gate electrode that is formed on the base substrate and alternately separated from the cathode electrode and has a cross-section whose height is greater than its width; and an electron emission layer disposed on a surface of the cathode electrode toward the gate electrode.

Abstract: A flat panel display device includes: a substrate; an electrode composed of metal; and an adhesive layer interposed between the substrate and the electrode. The electrode of the flat panel display device has excellent conductivity. The method of manufacturing the flat panel display device includes: preparing a metal substrate; forming a metal plating substrate by forming a plating mask layer on the metal substrate; forming an electrode on the metal plating substrate; separating the electrode, which is formed on the metal plating substrate, from the metal plating substrate with a cohesive layer; placing the separated electrode on another substrate using an adhesive composition; separating the cohesive layer from the electrode; and heat treating the adhesive composition to form an adhesive layer, the adhesive layer attaching the electrode to the another substrate. This method reduces the likelihood of malfunctioning electrodes being produced and leads to reduced manufacturing costs and processing time.

Abstract: A method of manufacturing opaque electrodes of a plasma display panel includes providing a mold plate having plating grooves corresponding to patterns of the opaque electrodes of the plasma display panel, forming first plating layers in the plating grooves, transferring the first plating layers to display electrodes on a substrate and removing the mold plate, leaving the first plating layers on the display electrodes. There may be adhesive between the display electrodes and the first plating layer. There may be a second plating layer between the display electrode and the first plating layer.

Abstract: A filter assembly, a plasma display panel with the filter assembly and a method of manufacturing the filter assembly. The plasma display panel includes a panel assembly, a chassis base on which a driving circuit is mounted and located on a rear of the panel assembly, a filter assembly mounted in front of the panel assembly, and a case that accommodates the panel assembly, the chassis base, and the filter assembly. The filter assembly includes a transparent substrate, an anti-reflection film, and an electromagnetic wave shielding filter attached to the rear surface of the substrate, and the electromagnetic wave shielding filter is grounded to the inner side of the case and is made of a metal mesh that includes a plating layer and a strike seed layer.

Abstract: An electromagnetic wave shielding filter for a plasma display panel, for example, and a method of manufacturing such a filter includes preparing a substrate such as a metal plate that can act as a seed layer for electrolytic plating; forming a mesh plating layer on an upper surface of the metal plate; adhering an adhesive film to an upper surface of the plating layer; and separating the adhesive film from the metal plate so that the plating layer is adhered to a lower surface of the adhesive film. An electromagnetic wave shielding layer, which is installed to shield electromagnetic waves generated during the driving of a plasma display panel, for example, is formed in a mesh pattern, and the mesh pattern is created on a metal plate by electrolytic plating.

Abstract: The present invention provides a cathode material for an electron beam device. The cathode material is characterized by the fact that it includes 0.5-9.0% by weight of a rare earth metal of the cerium group, 0.5-15.0% by weight of tungsten or rhenium or both tungsten and rhenium, 0.5-10% by weight of carbon and the remainder of iridium. The cathode material according to the invention has excellent plasticity, can be easily used for manufacturing an emitter of a small size, has high electron emission power, and has a low operation temperature, thereby having a long lifetime, and it is therefore useful for a cathode material for an electron beam device.

Abstract: A metal cathode for an electron-emission device, and an indirectly heated cathode assembly employing the metal cathode where the metal cathode is formed of a quaternary alloy including 0.1-20% by weight barium (Ba), 0.1-20% by weight a metallic mobilizer facilitating Ba diffusion, a metal with a difference in atomic radius of at least 0.4 Angstrom from the atomic radius of platinum (Pt) or palladium (Pd), the metal being in the range of 0.01 to 30% by weight, and a balance of at least one of Pt and Pd. The metal cathode has a low operating temperature due to its reduced work function with improved current emission capability. The metal cathode can be used for a longer lifetime at high current density. Therefore, the metal cathode can be used effectively in electron-beam devices, such as a Braun tube or picture tube, satisfying larger size, longer life span, high definition, and high luminance requirements of the devices.

Abstract: An indirectly heated metal cathode for an electron tube includes a metal sleeve of an Mo material, a metal emitter disposed on the metal sleeve and including Pt or Pd as a main component; and a buffer layer between the metal sleeve and the metal emitter. The buffer layer prevents Mo, an element of the metal sleeve, from diffusing into the emitter during the operation of the metal cathode so that electron-emitting performance does not decrease rapidly with operating time due to an increase in a work function. Therefore, the metal cathode satisfies a long life span requirement for large scale and high definition electron tubes.

Abstract: A filter for a plasma display panel and a method of manufacturing the novel filter. The filter is made up of a transparent substrate, a patterned conductive material formed on one side of the substrate, a negative photoresist with additives patterned to complement the metal pattern, the additives including a dye, a pigment and an additive to prevent reflection of external light. The method includes forming the metal pattern on the substrate, and using the metal pattern as a photo mask for patterning a layer of photoresist to complement the metal pattern.