Abstract: A photonic-crystal filament is formed by mixing a slurry comprising particles of substantially uniform size and a precursor material for a desired metal, urging the slurry through an orifice to force the particles and precursor material into a combination having a desired crystallographic configuration, drying the combination emerging from the orifice, and sintering the precursor material.

Abstract: A plasma display assembly having increased structural rigidity without using a reinforcing member is disclosed. The plasma display assembly includes a PDP, a chassis base and at least one or more circuit boards so as to provide the electromechanical structures to produce an image. The chassis base supporting the PDP at a rear side thereof includes a base part and at least one extended bent part. The base part is formed substantially parallel to the PDP. The extended bent part is formed in at least one of upper, lower, left and right edges of the base part, and includes a first bent part bent with respect to the base part to extend rearwardly, a second bent part bent with respect to the first bent part to extend in a direction parallel to the chassis base, and a third bent part bent with respect to the second bent part to extend forwardly. The circuit boards are arranged to be connected to at the rear side of the chassis base and drive the PDP during operation.

Abstract: A second transparent electrode of each of the row electrodes in each row electrode pair corresponding each of the discharge cells located in an internal peripheral portion of the panel has an electrode area smaller than the electrode area of a first transparent electrode corresponding each of the discharge cells located in a central portion of the panel. The head portion of the second transparent electrode corresponding to each of the discharge cells located in the internal peripheral portion has a row-direction width greater than the row-direction width of the head portion of the first transparent electrode corresponding to each of the discharge cells located in the central portion.

Abstract: A white-light electroluminescent device having an adjustable color temperature substantially on a predetermined range of a Planckian locus within the 1976 Commission Internationale de l'Eclairage (CIE) uniform chromaticity scale diagram. According to one embodiment, a first light-emitting element having a fixed ratio of at least two different species of emitters combined to produce a set of chromaticity coordinates at a predetermined white point substantially on the Planckian locus. A second light-emitting element having at least a single species of emitters produces a set of chromaticity coordinates. The set of chromaticity coordinates are positioned along a projected line extending from the Planckian locus and through the chromaticity coordinates of the first light-emitting layer. A controller adjusts the voltage or current associated with the first and second light-emitting elements to provide white light with a predetermined range of chromaticity coordinates substantially on the Planckian locus.

Abstract: An active matrix organic light emitting device having a structure where a plurality of emission layers having each separate current path are stacked. In the active matrix organic light emitting device of the present invention, a plurality of emission layers are stacked on an insulating substrate. A thin film transistor is formed on the insulating substrate and is connected in common with a number of electrode layers to independently drive the plurality of emission layers.

Abstract: An electron emission display includes first and second substrates opposing each other, an electron emission unit that is provided on an inner surface of the first substrate, a light emission unit that is provided on an inner surface of the second substrate, and a spacer that is located between the first and second substrate. The spacer includes a main body containing a material whose temperature-coefficient-of-resistance is less than or equal to 3%/° C.

Abstract: A plasma display device includes a plasma display panel 11 that has a front substrate including a plurality of display electrodes arranged thereon and a rear substrate having data electrodes arranged thereon to cross the display electrodes, the front substrate and the rear substrate facing each other so as to form a discharge space, and chassis member 20 that holds plasma display panel 11 on a front side and has a driving circuit block for driving plasma display panel 11 on a rear side. Chassis member 20 has base plate 36 that is divided into a plurality of base metal plates 36a, 36b, and 36c, to which plasma display panel 11 is attached, and metal plates 37 and 38 that couple the plurality of base metal plates 36a, 36b, and 36c together.

Abstract: A plasma display panel is provided. The plasma display panel comprises a plurality of first electrodes and a plurality of second electrodes; wherein the first electrodes and the second electrodes cross at a discharge space; wherein prominent electrodes and formed at a portion o the first electrodes where the first electrodes cross with the second electrodes to extend the area of the address electrodes so that a stable address discharge may occur, and vertical centers of the prominent electrodes are asymmetrical with respect to vertical centers of the discharge spaces, which may be coated with red, green and blue fluorescent layers.

Abstract: This invention relates to a triode type cathode structure comprising, in superposition, an electrode forming a cathode (13) and supporting means made of an electron emitting material in the form of a layer (14), an electrical insulation layer (11) and a grid electrode (15), an opening (12) formed in the grid electrode and in the electrical insulation layer exposing the means made of an electron emitting material. The means made of an electron emitting material (14) are located in the central part of the opening of the grid electrode (15), this opening being in the form of a slit and the means made of an electron emitting material exposed by the slit being composed of elements aligned along the longitudinal axis of the slit.

Abstract: A mercury-free gas discharge lamp suitable in particular for motor vehicles has an enhanced discharge arc diffuseness. The lamp according includes an inner vessel and/or outer bulb with a structured arrangement or pattern such that the discharge arc diffuseness of the lamp is increased, such as by 0.01 mm to 1.5 mm.

Abstract: The present invention relates to glow-switch starters 1, lighting devices therewith and use thereof. The glow-switch starter 1 is suitable for use with three phase supply voltages substantially higher than the common 230V supply voltage 26. This allows more efficient gas discharges in e.g. fluorescent lamps 20, and/or more lamp power, and/or less energy losses in ballasts 22 and lamp electrodes. To make the glow-switch starter suited for such use, according to the invention, the gas filling 5 of the starter 1 is adapted. An important criterion is that the glow current in the steady state operation of the fluorescent lamp that is started by the starter is small enough to prevent closing of the (bimetallic) switch.

Abstract: Diamond-like carbon field emission surfaces, including associated devices and methods for using such devices are disclosed. In one aspect, for example, a field emission surface is provided, including a smooth layer of diamond-like carbon disposed on a smooth substrate, the diamond-like carbon layer having a uniformly distributed ablation pattern configured to emit electrons. The diamond-like carbon layer should be smooth in order to allow the uniform distribution of the ablation pattern.

Abstract: A manufacturing process for the production of plasma display panels is provided which allows obtaining in a simple way displays in which getter materials deposits are present in contact with the atmosphere present in channels or cells of the display. The process includes a step of forming the getter material deposits on a free surface of the magnesium oxide layer at positions essentially corresponding to contact areas between the front glass panel and the barriers on the rear glass panel of the display panel.

Abstract: An Organic Light Emitting Diode (OLED) which is adapted to inhibit the formation and growth of non-emissive areas known as “dark spots.” The OLED comprises an anode disposed on a substrate, a cathode, an electroluminescent (EL) layer disposed between the anode and the cathode and a hole transport layer disposed between the anode and the EL layer. The OLED has one or more dielectric organic barrier layers disposed between one or more of the OLED's layers. These barrier layers are made from an organic polymer and are adapted to resist permeation by oxygen and moisture and to inhibit metal migration.

Abstract: A spark plug for an internal combustion engine and related manufacturing method are disclosed having a metal shell, a porcelain insulator, a center electrode and a ground electrode. The center electrode includes a substantially columnar shaped base material body, and a substantially square shaped rod-like Ir alloy tip bonded to a leading end portion of the base material body. The leading end portion has a diameter D2 smaller than a diameter D1 of the base material body. The Ir alloy tip has a square shape with a long diagonal line supposed to form a diameter A of a circumscribed circle CA of the Ir alloy tip whose inscribed circle CB is coaxial with the circumscribed circle CA and has a diameter B, with four diameters A, B, D1 and D2 lay in the relationship expressed as D1>A>D2>B.

Abstract: An electron emission display includes first and second substrates facing each other, a plurality of election emission regions provided on the first substrate, a black layer formed on a first surface of the second substrate between the phosphor layers, and an anode electrode coupled to the phosphor and black layers. The anode electrode has a light transmissivity ranging from about 3% to about 15%. A method of forming the anode electrode includes forming an interlayer on the phosphor and black layer, depositing a conductive material on the second substrate, and removing the interlayer through a firing process.

Abstract: It is possible to prolong service life of a discharge lamp of hot-cathode type and to reduce a diameter thereof. A discharge lamp 1 is provided with an electrode 3. The electrode 3 has a heater 4 made up a coil portion 4a, and a first lead wire portion 4b and a second lead wire portion 4c that respectively extend from rear ends of this coil portion 4a and applied by an electron emission material 3a. In the electrode 3, a first lead-in wires 6a is connected to the first lead wire portion 4b and a second lead-in wires 6b is connected to the second lead wire portion 4c, so that the coil portion 4a is arranged vertically along the tube axis of the glass tube 2. The electrode 3 is also provided a sleeve 7 covering surrounding of the coil portion 4a and having openings in the faces respectively opposite to the forward end and rear end of the coil portion 4a. An open end 7a of the sleeve 7 exceeds a forward end of the coil portion 4a, thereby protecting the coil portion 4a.

Abstract: A dispenser cathode which comprises an emission surface, a reservoir for material releasing, when heated, work-function-lowering particles, and at least one passage for allowing diffusion of work-function-lowering particles from said reservoir to said emission surface, said emission surface comprising at least one emission area and at least one non-emission area covered with emission-suppressing material and surrounding each emission area, said non-emission area comprising at least one passage connecting said reservoir with said non-emission area and debouching within a diffusion length distance from an emission area for allowing diffusion of work-function-lowering particles from said reservoir to said emission area.

Abstract: An optical filter of a plasma display panel (PDP) and its fabrication method are disclosed. The optical filter includes an electromagnetic wave shield layer having a bias angle formed by cutting a mesh film along a predetermined direction.

Abstract: A plasma display panel (PDP) that has improved discharge efficiency and luminance includes: a first substrate and a second substrate which are provided to oppose each other; barrier ribs which are provided between the first and second substrates and by which a plurality of discharge cells are partitioned; a phosphor layer formed in each of the discharge cells; address electrodes formed either on the first substrate or on the second substrate; and display electrodes formed on the first substrate to extend in a direction intersecting with the address electrodes. The display electrodes include: at least a pair of first display electrodes which are provided close to both peripheral portions of each discharge cell; and a second display electrode provided between the first display electrodes to cross the discharge cell, the second display electrode facing the first display electrodes on both sides to form at least two discharge gaps within each discharge cell.