Abstract: The present invention provides an organic electroluminescent element that includes a pair of electrodes and a plurality of organic compound layers being disposed between the pair of electrodes. The organic compound layers include a luminescent layer containing a blue phosphorescent luminescent material and a host material having the lowest excited triplet energy (T1) of 272 kJ/mol (65 kcal/mol) or more, and hole transport layers. One of the hole transport layers is a layer adjacent to the luminescent layer, and when the ionization potentials of the luminescent layer, the hole transport layer adjacent to the luminescent layer, and another of the hole transport layers, respectively, designated to Ip1, Ip2 and Ip3, the relationship Ip1>Ip2>Ip3 is satisfied.

Abstract: A long-life high-pressure discharge lamp can (i) suppress damage to sealing portions, especially at an initial stage of the accumulated lighting time, (ii) allow for easy assembly of components such as electrodes and (iii) prevent deformation/ripping of metallic foils. An arc tube is a glass enveloping vessel with electrodes arranged therein, and includes: a light emitting portion in which materials are enclosed and a discharge space is formed; and sealing portions provided at ends of the light emitting portion. Each electrode includes an electrode bar whose first end is in the discharge space, and whose second end is in the corresponding sealing portion and connected to a metallic foil. The second end of each electrode bar is partially wrapped around by a sleeve-like metallic cover foil that has a cut-out section positioned over a joining area where the second end of each electrode bar is joined to the metallic foil.

Abstract: A full-color organic light emitting display device and a method of fabricating the same, including a substrate, at least one color conversion layer, a color filter, and an organic light emitting diode having a lower electrode disposed on the substrate, an upper electrode disposed on the lower electrode, and an organic layer with at least a first emission layer.

Abstract: An illumination lamp is provided. The illumination lamp includes a hollow pillar tube being light-transmissive, at least one inner light tube accommodated in the hollow pillar tube, and an electrode set disposed at one distal end of the hollow pillar tube and electrically connected to the inner light tube in the hollow pillar tube.

Abstract: An electric lamp is described, which has a quartz glass lamp vessel (10) accommodating an electric element (3, 4). The lamp vessel locally has a light-absorbing, non-reflective coating (11, 12). The coating mainly consists of iron, iron oxide, silicon, and silicon dioxide, the ratio of the weight percentages of iron (compounds) and silicon (compounds) being in the range of 0.17<=iron (compounds)/silicon (compounds)<-12, and the ratio of the weight percentages of silicon and silicon dioxide being in the range of 0.5<=silicon/silicon dioxide<=50.

Abstract: A lamp with an outer bulb is provided. The outer bulb is attached to an attaching member of a base by simple and convenient fabrication, and reliably prevents detachment of the outer bulb from the attaching member. An outer peripheral surface of a supporting post formed to the attaching member of the base and an inner peripheral surface of the outer bulb define a gap therebetween that may receive a heat resistant adhesive or filler. Convex portions facing the gap may be formed to the outer peripheral surface of the supporting post and the inner peripheral surface of the outer bulb, respectively, and a joint body for joining the outer bulb and the supporting post is defined between the outer peripheral surface of the supporting post and the inner peripheral surface of the outer bulb by the adhesive or filler in the gap.

Abstract: A light emitting device has an enclosure with a face portion, a cold cathode within the enclosure, a phosphor layer disposed on an interior surface of the face portion, an extracting grid between the cold cathode and the phosphor layer and a defocusing grid between the extracting grid and the phosphor layer. Electrons emitted from the cold cathode are defocused by the defocusing grid and impact the phosphor layer when an electric field is created between the cold cathode and the phosphor layer due to applied voltages at the cold cathode, extracting grid, defocusing grid and phosphor layer. The phosphor layer emits light through the face portion in response to electrons incident thereon. Secondary electron emission may also occur resulting in increased electron impact upon the phosphor layer, thereby increasing light output. A mirror layer may be included to reflect light toward the face portion of the light emitting device.

Abstract: There is provided an electro-luminescence device in which a display base substrate including a display body layer having a switching element disposed in the shape of a matrix and a light emitting element having a light emitting state controlled by the switching element and a sealing layer having a gas barrier layer that is formed on the display body layer and has at least a function for blocking water vapor and a protection substrate made of a translucent material and having a surface on which at least two types of gap control layers made of different materials are stacked are bonded such that a gap control layer, disposed on the uppermost layer, of the gap control layers and the gas barrier layer are brought into contact with each other, wherein the gap control layer disposed on the uppermost layer has a Young's modulus lower than the gas barrier layer.

Abstract: A thermal field emission cathode which is employed in an electron microscope, a critical dimension examine tool, an electron beam lithograph machine, an electron beam tester and other electron beam related systems as an electron source is disclosed. Embodiments disclose changing coating shape, coating position and shorten emitter length to extend the lifetime of the field emission cathode.

Abstract: An entire length of a fluorescent lamp is made short to allow the fluorescent lamp to be downsized and the part other than the fluorescent lamp to be shortened so as to advantageously improve the design potentials and enhance the lighting effect. A fluorescent lamp to be fitted to a feeding side member, or a hook ceiling, having a pair of retaining holes and a pair of feeding side terminals arranged at corresponding positions, comprises a fluorescent lamp main body, an inverter-containing case arranged at a proximal end side of the fluorescent lamp main body and a pair of terminals arranged at the side of the case opposite to the fluorescent lamp main body. The pair of terminals have the tip ends bent so as to be retained by the feeding side member and establish electric connection to the feeding side terminals as they are respectively inserted into the pair of retaining holes of the feeding side member and displaced in the rotating direction around the center of the fluorescent lamp.

Abstract: When a light-emitting element having an intermediate conductive layer between a plurality of light-emitting layers is formed, the intermediate conductive layer can have transparency; and thus, materials are largely limited and the manufacturing process of an element becomes complicated by a conventional method. A light-emitting element according to the present invention is formed by sequentially stacking a pixel electrode, a first light-emitting layer, an intermediate conductive layer (including an electron injecting layer and a hole-injecting layer, one of which is island-like), a second light-emitting layer and an opposite electrode.

Abstract: A double-faced display apparatus includes a first transparent substrate, second transparent substrate, frame adhesive, first OELD, second OELD, first buffer layer, second buffer layer, first absorbent layer and second absorbent layer. The second transparent substrate is disposed in parallel to the first transparent substrate. The frame adhesive is disposed between the first transparent substrate and second transparent substrate for defining a space. The first OELD is disposed in the space and located on the first transparent substrate. The second OELD is disposed in the space and located on the second transparent substrate. The first buffer layer is disposed in the space and covers the first OELD. The second buffer layer is disposed in the space and covering the second OELD. The first absorbent layer is disposed in the space and covers the first buffer layer. The second absorbent layer is disposed in the space and covers the second buffer layer.

Abstract: An electron-emitting device has a pair of device electrodes formed on a substrate and an electroconductive film connected to the device electrodes. The electroconductive film has a first gap between the device electrodes and has a carbon film having a second gap at least in the first gap. The substrate is formed by stacking a nitrogen-contained activation suppressing layer and an activation accelerating layer having a nitrogen containing ratio smaller than that of the activation suppressing layer onto a base and has nitrogen containing ratio distribution in the activation suppressing layer in a film thickness direction. The nitrogen containing ratio of the activation suppressing layer at the activation accelerating layer side is smaller than that at the base side.

Abstract: An organic light emitting display device includes an organic light emitting display panel; a bezel including a lower surface and a plurality of side walls extending from edges of the lower surface, and receiving the display panel therein; and a protective window provided on the top of the bezel, wherein the bezel is provided with a first rib, and the protective window is provided with a groove coupled to the first rib.

Abstract: A field emission electron source includes a CNT needle and a conductive base. The CNT needle has an end portion and a broken end portion; the end portion is contacted with and electrically connected to a surface of the conductive base. The CNTs at the broken end portion form a taper-shape structure, wherein one CNT protrudes and is higher than the adjacent CNTs.

Abstract: A plasma display apparatus comprising a connector is provided. The plasma display apparatus comprises a plasma display panel comprising an electrode of a predetermined width and a connector comprising an electrode line of a width narrower than the predetermined width of the electrode to supply a driving signal to the electrode. A distance between the electrode line and an adjacent electrode line is longer than a distance between the electrode and an adjacent electrode.

Abstract: A plasma display panel is disclosed. The plasma display panel includes a front substrate, a rear substrate facing the front substrate, a barrier rib that is positioned between the front substrate and the rear substrate and partitions a discharge cell, and a phosphor layer formed inside the discharge cell. The phosphor layer includes a first phosphor layer emitting first color light, a second phosphor layer emitting second color light, and a third phosphor layer emitting third color light. The first phosphor layer includes a first pigment. A thickness of the second phosphor layer is larger than a thickness of the first phosphor layer.

Abstract: An organic light emitting display is disclosed. One embodiment of the organic light emitting display includes a substrate member and a plurality of pixels that are formed on the substrate member. At least one of the pixels includes a thin film transistor, a light emitting element that is electrically connected to the thin film transistor, and a reflective layer that is disposed between the thin film transistor and the light emitting element and that is insulated from each of the thin film transistor and the light emitting element.

Abstract: A glass composition of the present invention is an oxide glass, in which the percentages of elements except for oxygen (O) contained therein are as follows, in terms of atom %: the amount of boron (B) exceeds 72% but does not exceed 86%, the total amount of lithium (Li), sodium (Na), and potassium (K) is 8% to 20%, the total amount of magnesium (Mg), calcium (Ca), strontium (Sr), and barium (Ba) is 1% to 8%, the amount of silicon (Si) is from 0% to less than 15%, and the amount of zinc (Zn) is from 0% to less than 2%. This glass composition further may contain molybdenum (Mo) and/or tungsten (W) in the range of more than 0% but not more than 3%.

Abstract: A low pressure fluorescent tanning lamp (10) includes an elongated, tubular glass envelope (12) including an arc generating and sustaining medium (14) and electrodes (16) therewithin and having a first section (18) and a second section (20). A phosphor coating (22) is provided on the interior of the first section (18) and only a portion (24) of the second section (20). The phosphor coating comprises materials emitting in the UVA and UVB areas of the electromagnetic spectrum and additionally in the visible area of the electromagnetic spectrum in the range above 600 nm. The second section (20) includes a clear window (26) and the phosphor comprises a mixture comprising about 91% BaSi2O5:Pb; about 6% MgSrAl10O17:Ce; and about 3% Y2O3:Eu.