Abstract: An electron-emitting device comprises a pair of electrodes and an electroconductive film arranged between the electrodes and including an electron-emitting region carrying a graphite film. The graphite film shows, in a Raman spectroscopic analysis using a laser light source with a wavelength of 514.5 nm and a spot diameter of 1 ?m, peaks of scattered light, of which 1) a peak (P2) located in the vicinity of 1,580 cm?1 is greater than a peak (P1) located in the vicinity of 1,335 cm?1 or 2) the half-width of a peak (P1) located in the vicinity of 1,335 cm?1 is not greater than 150 cm?1.

Abstract: In an organic EL device disclosed, there are stacked sequentially on a glass substrate an anode, a first carrier transportation layer, a second carrier transportation layer, a light emission layer, a third carrier transportation layer, a fourth carrier transportation layer, an electron transportation layer, and a cathode. The first carrier transportation layer is formed from a material having an ionization potential Ip lower than the ionization potential Ip of the second carrier transportation layer, and the third carrier transportation layer is formed from a material having an electron affinity Ea less than the electron affinity Ea of the fourth carrier transportation layer.

Abstract: An LED chip capping construction to enhance luminance of the LED containing a condenser capping over a chip of the LED; a condensing part of the condenser protruding through a carrier and surrounded by multiple condensing aspects; the source light from the chip passing the condenser and consistently reflected to each condensing aspect due to the medium characteristics of the condenser.

Abstract: A plasma display panel including a first panel, address electrodes formed on the first panel in a predetermined pattern, a first dielectric layer formed on the first panel and covering the address electrodes, a partition structure having unit partitions discontinuously formed on the first dielectric layer to partition a discharge space, the unit partitions being parallel to the address electrodes and each having auxiliary partitions, red, green and blue phosphor layers coated in the partitioned discharge space, a second panel, which is coupled to the first panel to form the discharge space and which is transparent, a plurality of pairs of sustaining electrodes formed on an inner surface of the second panel and having sets of first and second electrodes at a predetermined angle with respect to the address electrodes, and a second dielectric layer formed on the second panel and covering the sustaining electrodes.

Abstract: An organic electroluminescence display capable of increased luminance and luminous efficiency by forming an organic light emitting device in a recessed structure is disclosed. The organic electroluminescence display comprises a pixel defining layer provided with an opening, a first electrode formed on the opening of the pixel defining layer in a recessed structure, an organic emission layer formed on the first electrode, and a second electrode. The organic emission layer is formed to be recessed in the first electrode, so that the first electrode surrounds the organic emission layer.

Abstract: An organic electroluminescent display device includes an array substrate, an organic EL element formed on the array substrate and having a transparent anode, a hole transporting layer, a light emitting layer, and a cathode, an epoxy resin layer so formed as to cover the organic EL element and containing 1 wt % or less of water, and a moisture-resistant layer formed on the epoxy resin layer.

Abstract: A ground electrode has one end portion fixed to a metal housing, a bent portion provided at an intermediate portion thereof, and the other end portion positioned in a confronting relationship with a center electrode to form a spark discharge gap. The ground electrode contains either Ni or Fe as a main component and at least one additive selected from the group consisting of Cr and Al. A cross-sectional area S of the ground electrode is not less than 2 mm2 and not greater than 3 mm2. An average value D of crystal grain diameters in a thickness direction is not less than 100 ?m at least at the bent portion.

Abstract: The present invention relates to a plasma display panel and a manufacture method thereof in which a color mixture of emitted light can be prevented and a contrast characteristic can be improved. The plasma display panel includes: a first barrier rib for partitioning a plurality of sub-pixels; and a second barrier rib formed to function as a boundary between one unit pixel constituting of the plurality of sub-pixels and an adjacent unit pixel, and partition the unit pixels, wherein the second barrier rib has a greater width than the first barrier rib. The method includes the steps of: coating a first and second barrier rib paste on a dielectric material formed on a glass; and placing and exposing an irregular pattern mask on the first and second barrier rib paste to form a first barrier rib pattern and a second barrier rib pattern each having a different width.

Abstract: A concave and convex portion is formed on the surface of the planarization insulating film. The surface of the anode also has a concave and convex portion, reflecting the concave and convex structure of the planarization insulating film. The hole transportation layer, the emissive layer, the electron transportation layer and the cathode are disposed on the anode through vacuum evaporation. The surface of the hole transportation layer, the emissive layer, the electron transportation layer, and the cathode has the concave and convex structure, respectively, reflecting the concave and convex structure on the surface of the anode. The effective light-emitting area of the emissive layer is larger than that of a conventional device. That is, a higher brightness can be achieved by increasing the effective light-emitting area of the EL device. Also, the life span of the EL device is extended while keeping its brightness at a conventional level.

Abstract: In a device encapsulation method, an organic EL device is formed on a substrate. An encapsulation cap is placed on the substrate to surround the device and thereafter an end face of the cap is welded on at least the substrate. A device package is also disclosed.

Abstract: A display device in which variations in luminance due to variations in characteristics of transistors are reduced, and image quality degradation due to variations in resistance values is prevented. The invention comprises a transistor whose channel portion is formed of an amorphous semiconductor or an organic semiconductor, a connecting wiring connected to a source electrode or a drain electrode of the transistor, a light emitting element having a laminated structure which includes a pixel electrode, an electro luminescent layer, and a counter electrode, an insulating layer surrounding an end portion of the pixel electrode, and an auxiliary wiring formed in the same layer as a gate electrode of the transistor, a connecting wiring, or the pixel electrode. Further, the connecting wiring is connected to the pixel electrode, and the auxiliary wiring is connected to the counter electrode via an opening portion provided in the insulating layer.

Abstract: A spark plug according to the invention includes a metal shell, an insulator, a center electrode, a first ground electrode, and a second ground electrode. The metal shell has a threaded portion with an outer diameter in a range of 12 to 14 mm. The first ground electrode is aligned with the center electrode in an axial direction of the spark plug to form a first spark gap across which normal sparks are discharged in normal conditions. The second ground electrode is aligned with the center electrode in a radial direction of the spark plug to form a second spark gap across which side sparks are discharged when the insulator is fouled with carbon deposits. The spark plug has an improved structure ensuring that when the insulator is fouled with carbon deposits, side sparks are discharged without formation of channels on the insulator, thereby recovering the insulation properties of the insulator.

Abstract: An organic electoluminescent (EL) display device and methodology of fabricating the same includes a first array substrate having an anode electrode, a cathode electrode and an organic layer between the anode electrode and the cathode electrode; a second array substrate having at least one driving thin film transistor formed thereon, the at least one driving thin film transistor to supply a driving signal to either one of the anode electrode and the cathode electrode; a first spacer made of conductive material to supply the driving signal to either one of the anode electrode and the cathode electrode, the first spacer being formed between the first and the second array substrates; and a second spacer made of an adhesive material to fix together the first and the second array substrates, the second spacer being formed between the first and the second array substrates.

Abstract: An active matrix organic light emitting display panel includes a first substrate including a seal pattern region, a non-display region, and a display region, the non-display region being between the display region and the seal pattern region, a pad connected to the first substrate, and a power line including a routing line connected directly to the pad, and a pixel line for applying a pixel voltage to a plurality of pixels, the routing line having a first portion being in the non-display region and a second portion being in the seal pattern region, and the pixel line being in the display region.

Abstract: In a spark plug composed of a center electrode and an earth electrode, at least one of confronting portions of the center electrode and the earth electrode which are in opposed relation to each other is constructed with a noble metal chip containing Pt as a principal component. The noble metal chip is joined to an electrode base material of the center electrode or the earth electrode and is made of an alloy comprising Pt and another element. In this noble metal chip, Pt is contained as a first component, while Re is contained as a second component. The employment of this noble metal chip enables suppressing the growth of platinum balls even in a high-temperature atmosphere.

Abstract: A blue-emitting phosphor is optimized by controlling mole fractions typically of Mg and Si in Sr3-eMgbSi2cO8d:Eue or by further including an optimal amount of at least one additional component such as Ba or Ca. The resulting phosphor exhibits a higher brightness and a higher color purity upon excitation by ultraviolet light emitted as a result of discharge of xenon gas. The optimized phosphor is incorporated into light emitting devices such as lamps and PDPs, and further into display devices.

Abstract: The present invention relates to a color cathode ray tube and more specifically to a color cathode ray tube in which mechanical stress due to internal pressure made by evacuation is decreased. According to an aspect of the present invention, a cathode ray tube comprises a panel on inner surface of which a phosphor screen is formed; a funnel joined to the panel; an electron gun generating electron beams; and a deflection yoke which is mounted within the funnel to deflect the electron beams, wherein radius of curvature of outer surface of said panel is in the range of 5000 mm to 100000 mm, and said panel satisfies: 1.0?(OAH*CFT)/USD?1.5 wherein OAH is overall height of said panel measured along defrection axis X, USD is diagonal length of effective screen of said panel and CFT is thickness of center portion of said panel.

Abstract: Disclosed is a plasma display panel. The plasma display panel comprises a lower substrate and an upper substrate, which are spaced apart by a predetermined distance from each other to define a plurality of discharge cells therebetween; a plurality of barrier ribs disposed between the lower substrate and the upper substrate; a plurality of address electrodes formed in parallel with one another on an upper surface of the lower substrate; a plurality of discharge electrodes formed in a direction crossing the address electrodes on a lower surface of the upper substrate; and a fluorescent layer formed on an inner wall of the discharge cells, wherein the upper substrate comprises a plurality of light guides, which are formed in parallel with the plurality of address electrodes to focus and output visible light generated from the discharge cells by a discharge, the light guides having a light incident surface.

Abstract: A method of making a unitized tungsten electrode which exhibits superior mechanical and electrical properties which includes providing a length of cylindrical cut stock having a predetermined diameter and length. The stock is ground to form a rough unfinished electrode having an enlarged tip or nose portion at one end integrally connected to an elongated shank section. The unfinished electrode is treated by exposure to a chemical etchant for a time sufficient to form a finished electrode characterized by a smooth nose and shank surface and rounded undercut and ends. The invention includes the electrode formed by the described process.

Abstract: A display device consists of an electron-emitting device which is a laminate of an insulating layer and a pair of opposing electrodes formed on a planar substrate. A portion of the insulating layer is between the electrodes and a portion containing an electron emitting region in between one electrode and the substrate. Electrons are emitted from the electron emission region by a voltage to the electrodes, thereby stimulating a phosphorous to emitting light.