Abstract: A green emitting phosphor composition is disclosed. A phosphor composition of formula Ca1-xEuxAlB3O7, where 0<x<0.5 is formed from combining calcium carbonate, boron oxide, aluminum oxide, and europium oxide; and then firing the combination. A lighting apparatus including the phosphor composition is also provided. The phosphor composition may be combined with an additional phosphor to generate white light.

Abstract: Disclosed are a phosphor and a light emitting device having the same. The light emitting device includes a light emitting chip, a plurality of phosphors to absorb a portion of light emitted from the light emitting chip and to emit lights having mutually different peak wavelengths, and a molding member provided on the light emitting chip and including the phosphors. The phosphors include a first phosphor to emit light having a first peak wavelength, a second phosphor to absorb the portion of the light emitted from the light emitting chip and to emit light having a second peak wavelength, and a third phosphor to absorb the portion of the light emitted from the light emitting chip and to emit light having a third peak wavelength. The first to third peak wavelengths have mutually different color spectrums, and a light emission spectrum in which the first to third peak wavelengths are mixed with each other has a luminous intensity having a substantially flat section in at least 30 nm at a peak wavelength thereof.

Abstract: Provided according to embodiments of the invention are methods of making a Ca1-x-ySrxEuyAlSiN3 phosphor composition that include selecting a Color Rendering Index (CRI) R9 value, determining an Eu concentration based on predetermined values to obtain the selected CRI R9 value and making the Ca1-x-ySrxEuyAlSiN3 phosphor having the determined Eu concentration. Also provided are methods for determining concentrations of Eu in a Ca1-x-ySrxEuyAlSiN3 phosphor that will achieve a CRI R9 value. Related computer products are also disclosed.

Abstract: An electroluminescent element which can easily control the balance of color in white emission (white balance) is provided according to the present invention. The electroluminescent element comprises a first light-emitting layer containing one kind or two or more kinds of light-emitting materials, and a second light-emitting layer containing two kinds of light-emitting materials (a host material and a phosphorescent material) in which the phosphorescent material is doped at a concentration of from 10 to 40 wt %, preferably, from 12.5 to 20 wt %. Consequently, blue emission can be obtained from the first light-emitting layer and green and red (or orange) emission can be obtained from the second light-emitting layer. An electroluminescent element having such device configuration can easily control white balance since emission peak intensity changes at the same rate in case of increasing a current density.

Abstract: A phosphor and a light emitting device including the phosphor may be provided that emits light having a peak wavelength between a green wavelength band and a yellow wavelength band and has a triclinic system crystal structure of which the chemical formula is MSi2N2O2, M=CaxSryEuz(x+y+z=1), wherein, when three sides of a unit crystal lattice of the crystal structure are a, b and c and corner angles are ?, ? and ?, the crystal structure has relationships of a?b?c and ?????, and wherein, in a, b and c, any one of them is more than twice as much as one of the other two, and the values of the other two are so similar that they do not exceed the double of each.

Abstract: A light source device includes a first semiconductor light source, a second semiconductor light source, and a wavelength converter. The first semiconductor light source emits light in a first wavelength range. The second semiconductor light source emits light in a second wavelength range different from the first wavelength range. The wavelength converter absorbs the light in the first wavelength range to emit light in a third wavelength range different from either of the first wavelength range and the second wavelength range, and transmits the light in the second wavelength range substantially entirely.

Abstract: A high-efficiency, high-durability organic electroluminescent device, particularly a phosphorescent organic electroluminescent device is provided by using an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has high triplet exciton confining capability with an electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency. The organic electroluminescent device includes a pair of electrodes, and a plurality of organic layers sandwiched between the pair of electrodes and including a light emitting layer and an electron blocking layer, wherein a compound of the following general formula (1) having a carbazole ring structure is used as a constituent material of the electron blocking layer and the light emitting layer.

Abstract: A high-efficiency, high-durability organic electroluminescent device, particularly a phosphorescent organic electroluminescent device is provided by using an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has high triplet exciton confining capability with an electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency. The organic electroluminescent device includes a pair of electrodes, and a plurality of organic layers sandwiched between the pair of electrodes and including a phosphorescent light-emitting material-containing light emitting layer and a hole transport layer, wherein a compound of the following general formula (1) having a carbazole ring structure is used as a constituent material of the hole transport layer.

Abstract: Ultra-thin flexible LED lamp layers are formed over a release layer on a substrate. The LED lamp layers include a first conductor layer overlying the release layer, an array of vertical light emitting diodes (VLEDs) printed over the first conductor layer, where the VLEDs have a bottom electrode electrically contacting the first conductor layer, and a second conductor layer overlying the VLEDs and contacting a top electrode of the VLEDs. Other layers may be formed, such as protective layers, reflective layers, and phosphor layers. The LED lamp layers are then peeled off the substrate, wherein the release layer provides a weak adherence between the substrate and the LED lamp layers to allow the LED lamp layers to be separated from the substrate without damage. The resulting LED lamp layers are extremely flexible, enabling the LED lamp layers to be adhered to flexible target surfaces including clothing.

Abstract: The invention relates to a luminous element having a luminous layer which comprises electroluminescent particles and a water-dispersible or water-soluble protective colloid.

Abstract: An organic light-emitting display apparatus in which damages or defects are decreased when forming an emission layer, and a method of manufacturing the organic light-emitting display apparatus includes: a pixel electrode; an emission layer disposed on the pixel electrode and is capable of emitting light; a pixel defining layer that covers at least a portion of an edge of the emission layer such that a center portion of the emission layer is exposed; and an opposite electrode continuously formed over and across the pixel defining layer and the emission layer.

Abstract: A solid-state light source has a wavelength conversion chip affixed to a light emitting diode. Optical coatings, vias, light extraction elements, electrical connections or electrical bond pads can be fabricated on the wavelength conversion chips.

Abstract: A display substrate includes a base substrate, a semiconductor active layer disposed on the base substrate, a gate insulating layer disposed on the semiconductor active layer, a first conductive pattern group disposed on the gate insulating layer and including at least a gate electrode, a second conductive pattern group insulated from the first conductive pattern group and including at least a source electrode, a drain electrode, and a data pad. The second conductive pattern group includes a first conductive layer and a second conductive layer disposed on the first conductive layer to prevent the first conductive layer from being corroded and oxidized.

Abstract: Provided are a method of fabricating a light-emitting apparatus with improved light extraction efficiency and a light-emitting apparatus fabricated using the method. The method includes: preparing a monocrystalline substrate; forming an intermediate structure on the substrate, the intermediate structure comprising a light-emitting structure which comprises a first conductive pattern of a first conductivity type, a light-emitting pattern, and a second conductive pattern of a second conductivity type stacked sequentially, a first electrode which is electrically connected to the first conductive pattern, and a second electrode which is electrically connected to the second conductive pattern; forming a polycrystalline region, which extends in a horizontal direction, by irradiating a laser beam to the substrate in the horizontal direction such that the laser beam is focused on a beam-focusing point within the substrate; and cutting the substrate in the horizontal direction along the polycrystalline region.

Abstract: A semiconductor light-emitting diode, including: an n-GaN layer, a quantum well layer, an electron blocking layer, and a p-GaN layer, which are sequentially stacked on a substrate. The electron blocking layer includes at least one first AlGaN layer and at least one second AlGaN layer. The first AlGaN layer and the second AlGaN layer are alternately stacked. The adjacent first and second AlGaN layers have different Al component.

Abstract: A luminophore from the class of nitridic or oxynitridic luminophores with at least one cation M and an activator D, wherein a proportion x of the cation is replaced with Cu and D is at least one element from the series Eu, Ce, Sm, Yb and Tb

Abstract: Embodiments of luminescent materials and articles include first and second particles of first and second inorganic host lattices. The first particles are capable of producing first emissions having one or more first emission peaks at one or more first wavelengths. The first emissions have a first decay half-life that is long enough for the first emissions to be perceptible to the human eye for a first time period that begins when appropriate excitation of the luminescent material is discontinued. The second particles are capable of producing second emissions having one or more second emission peaks at one or more second wavelengths. The second emissions have a second decay half-life that is longer than the first decay half-life by a decay time difference that is sufficient for the second emissions to be perceptible to the human eye for a second time period that begins after the first time period.

Abstract: Disclosed is an organic light emitting device that may, for example, include a red pixel including a first red emission layer and a second red emission layer that emit red lights; a green pixel including a first green emission layer and a second green emission layer that emit green lights; a blue pixel including a first blue emission layer and a second blue emission layer that emit blue lights; and a first electrode and a second electrode that supply electric charges to the red, green and blue pixels, wherein a first emission layer and a second emission layer of at least one of the red, green and blue pixels include different materials between a fluorescent material and a phosphor material.

Abstract: It is an object of the present invention to provide a light-emitting device in which, even when a material with high reflectivity such as aluminum is used for an electrode, a layer containing oxygen can be formed over the electrode without increasing contact resistance and a manufacturing method thereof. According to the present invention, a feature thereof is a light-emitting element having an electrode composed of a stacked structure where a conductive film having high reflectivity such as aluminum, silver, and an alloy containing aluminum or an alloy containing silver, and a conductive film composed of a refractory metal material is provided over the conductive film, or a light-emitting device having the light-emitting element.

Abstract: A target for ultraviolet light generation comprises a substrate adapted to transmit ultraviolet light therethrough and a light-emitting layer disposed on the substrate and generating ultraviolet light in response to an electron beam. The light-emitting layer includes a polycrystalline film constituted by an oxide polycrystal containing Lu and Si doped with an activator or a polycrystalline film constituted by a rare-earth-containing aluminum garnet polycrystal doped with an activator.

Abstract: A light source device includes a first semiconductor light source, a second semiconductor light source, and a wavelength converter. The first semiconductor light source emits light in a first wavelength range. The second semiconductor light source emits light in a second wavelength range different from the first wavelength range. The wavelength converter absorbs the light in the first wavelength range to emit light in a third wavelength range different from either of the first wavelength range and the second wavelength range, and transmits the light in the second wavelength range substantially entirely.

Abstract: To connect multiple LED devices, each LED device is placed in a holder. A first wire is connected to a first wire connection point on the holder and a second wire is connected to a second wire connection point on the holder. The first wire is also connected to a first wire connection point on a circuit board The second wire is also connected to a second wire connection point on the circuit board. A connector may be used to connect the wires to the wire connection points on the circuit board. The circuit board includes traces to connect the LED devices to each other or to other components.

Abstract: Method for manufacturing organic EL element, including: reducing internal pressure of vacuum chamber by vacuum pump connected thereto in state where substrate with applied film formed thereon is placed in vacuum chamber, applied film having been formed by applying material of organic light-emitting layer to substrate; and purifying applied film having passed through reducing the internal pressure of the vacuum chamber. Diphenylamine is used in portion of vacuum pump that is connected to inside of vacuum chamber. Reducing internal pressure of vacuum chamber is performed such that molecules of diphenylamine fly from vacuum pump into vacuum chamber and some of molecules are taken into applied film, and purifying is performed so that content of diphenylamine in applied film is in range from more than 0 nmol/cm3 to 13.8 nmol/cm3.

Abstract: An organic light emitting diode (OLED) display includes: pixel electrodes formed on a substrate; a pixel definition layer between the pixel electrodes and partitioning a pixel area; organic emission layers of a plurality of colors on the pixel electrodes; and a common electrode on the organic emission layers. The pixel definition layer includes a first pattern and a second pattern having different formation materials, thicknesses, and extension directions.

Abstract: An organic electroluminescent device including a substrate, the substrate includes, laminated thereon, an anode layer; an organic structure including at least one light-emissive layer or at least one light-emissive unit having at least one light-emissive layer; a low resistance electron-transporting layer including a mixed layer of an electron-donating metal dopant and an organic compound; an organometallic complex-contained layer including an organometallic complex compound containing at least one metal ion selected from the group having an alkaline metal ion, an alkaline earth metal ion and a rare earth metal ion; a reducing reaction generating layer; and a cathode layer, in that order. At least one of the anode layer and the cathode layer is transparent.

Abstract: One object of one embodiment of the present invention is to provide a highly reliable semiconductor device including an oxide semiconductor, which has stable electrical characteristics. In a method for manufacturing a semiconductor device, a first insulating film is formed; source and drain electrodes and an oxide semiconductor film electrically connected to the source and drain electrodes are formed over the first insulating film; heat treatment is performed on the oxide semiconductor film so that a hydrogen atom in the oxide semiconductor film is removed; oxygen doping treatment is performed on the oxide semiconductor film, so that an oxygen atom is supplied into the oxide semiconductor film; a second insulating film is formed over the oxide semiconductor film; and a gate electrode is formed over the second insulating film so as to overlap with the oxide semiconductor film.

Abstract: A display device in which pixels each including an emission area are arranged in a form of a matrix, the display device including: a first electrode formed from the emission area of the pixels to a non-emission area on a periphery of the emission area; a second electrode formed so as to be common to the pixels; and a light emitting material layer formed between the first electrode and the second electrode; wherein film thickness in the non-emission area of at least one of the first electrode and the second electrode is larger than film thickness in the emission area.

Abstract: A polymer including a first repeating unit represented by Formula 1: and an organic light-emitting device including the polymer.

Abstract: Disclosed is a metal nanoparticle-coating silicate luminescent material, which has a molecular formula of Li2Ca1?xSiO4:Tbx@My; where @ represents a coating, M is at least one among Ag, Au, Pt, Pd, and Cu nanoparticles, where 0<x?0.2, where y is the molar ratio between M and Si, and where 0<y?1×10?2. The composition of the silicate coated metal nanoparticle luminescent material is metal nanoparticles coated with Li2Ca1?xSiO4:Tbx, all of which are substances having great chemical stability and having great stability when bombarded by large electron beams. Also provided in the present invention is a method for preparing the metal nanoparticle coating silicate luminescent material.

Abstract: Disclosed are a phosphor and a light emitting device including the same. The light emitting device includes a light emitting chip, a phosphor layer on the light emitting chip, and a phosphor added into the phosphor layer to absorb a light emitted from the light emitting chip and emit a central wavelength having a first blue color. The phosphor has a composition formula of LaxOySi6Al4N12:Ce3+z, a range of the x is 2?x?8, and a range of the y is 3?y?12.

Abstract: The embodiments herein relate to a method and device for labeling a touch region, in which adjacent raw data are labeled in groups for reducing a labeling time period as well as a memory size for storing the labeled data.

Abstract: An organic light-emitting display and a method of manufacturing the organic light-emitting display are disclosed. In one embodiment, the organic light-emitting display includes: i) a pixel electrode disposed on a substrate, ii) an opposite electrode disposed opposite to the pixel electrode, iii) an organic emission layer disposed between the pixel electrode and the opposite electrode; a light-scattering portion disposed between the substrate and the organic emission layer, including a plurality of scattering patterns for scattering light emitted from the organic emission layer in insulating layers having different refractive indexes. The display may further include a plurality of light absorption portions disposed between the light-scattering portion and the organic emission layer to correspond to the scattering patterns.

Abstract: The invention relates to a lighting apparatus comprising a conversion material (2) for converting primary light (4) into secondary light (5), wherein the conversion material (2) comprises converting photolummescent material (15), which degrades to non-converting photolummescent material over time when the conversion material (2) is illuminated by the primary light (4). The conversion material (2) is adapted such that, when the conversion material (2) is illuminated by the primary light (4), the relative decrease in concentration of the converting photolummescent material (15) within the conversion material (2) is larger than the relative decrease in intensity of the secondary light (5). This allows the lighting apparatus to provide an only slightly reduced absorbance of the primary light, even if a large part of the photolummescent material has been bleached, and thus a longer lifetime, with the same or a slightly reduced intensity of the secondary light.

Abstract: According to one embodiment, a semiconductor device includes a first semiconductor layer of an n type including a nitride semiconductor, a first metal layer of an alloy containing Al and Au, and a second metal layer. The first metal layer is in contact with the first semiconductor layer. The second metal layer is in contact with the first metal layer. The second metal layer includes a metal different from Al. The first metal layer is disposed between the second metal layer and the first semiconductor layer.

Abstract: An illumination device and a light-emission module suppressing a change in color temperature when light emitted from a light-emission unit passes through an optical member. The illumination device has a lighting apparatus that includes: a first light-emission part emitting light of a daylight color temperature; a second light-emission part emitting light of an incandescent lamp color temperature; and the optical member, which is disposed on an optical path of the light emitted from the light-emission parts. A correlated color temperature of the light emitted from the second light-emission part is set to 2238 K. Due to this, in a spectrum of the light emitted from the second light-emission part, a maximum intensity within a wavelength range from 400 nm to 500 nm is no greater than one-tenth of a maximum intensity within a wavelength range from 300 nm to 800 nm.

Abstract: An organic light-emitting diode includes an anode on a substrate; a first hole transporting layer on the anode; a second hole transporting layer on the first hole transporting layer and corresponding to the red and green pixel areas; a first emitting material pattern of a first thickness on the second hole transporting layer and corresponding to the red pixel area; a second emitting material pattern of a second thickness on the second hole transporting layer and corresponding to the green pixel area; a third emitting material pattern of a third thickness on the first hole transporting layer and corresponding to the blue pixel area; an electron transporting layer on the first, second and third emitting material patterns; and a cathode on the electron transporting layer, wherein the second thickness is less than the first thickness and greater than the third thickness.

Abstract: A lighting device includes an LED light source that emits light having a first peak wavelength in a range from 200 to 470 nm and a second peak wavelength in a range from 460 to 700 nm. An emission intensity at the second peak wavelength is greater than an emission intensity at the first peak wavelength, and an emission intensity at a wavelength band of 720 nm or greater is one tenth or less than an emission intensity at the second peak wavelength.

Abstract: A white organic light emitting device which has high color temperature characteristics and no change in color coordinates according to luminance change, includes a first electrode and a second electrode opposite to each other on a substrate, a charge generation layer formed between the first electrode and the second electrode, a second stack including a second light emitting layer formed between the charge generation layer and the second electrode, and a first stack including a first light emitting layer formed between the first electrode and the charge generation layer, wherein the first emitting layer has low singlet-triplet exchange energy to change triplet excitons into a singlet state by triplet-triplet annihilation and a dopant concentration of the first light emitting layer is adjusted according to a luminance change curve of the second stack.

Abstract: Provided are a Light Emitting Diode (LED) red fluorescent material and a lighting device having the same. The florescent material consists of elements M, A, D, X, L and Z, wherein element M at least contains one or more than one element of Be, Mg, Ca, Sr, Ba and Zn; element A at least contains one or more than one element of B, Al, Ga, In, La, Gd, Lu, Sc and Y; element D at least contains one or more than one element of Si, Ge, C, Sn, Ti, Zr and Hf; element X at least contains one or more than one element of N, O and F; element L at least contains one or more than one element of S, Se and Te; and element Z at least contains one or more than one element of a rare earth element or a transition-metal element.

Abstract: A quantum rod based color pixel backlight system for Liquid Crystal Display, not requiring color filters and traditional polarizer, comprising multiplicity of LEDs, emitting ultraviolet or near-ultraviolet or blue light, assembled at one edge of a ultraviolet or near-ultraviolet or blue light transmitting light guide, which has other three edges and bottom surface coated with ultraviolet/near-ultraviolet reflecting layer and its top surface roughened with ultraviolet and near-ultraviolet extracting pixel patterns that contain aligned layers of quantum rods that emit different colors of plane polarized light in red, blue and green region with sharp spectrum, to increase the color gamut and optical efficiency of LCD screen, upon excitation by ultraviolet or near-ultraviolet or blue light.

Abstract: Methods of forming emitters for back-contact solar cells are described. In one embodiment, a method includes forming a first solid-state dopant source above a substrate. The first solid-state dopant source includes a plurality of regions separated by gaps. Regions of a second solid-state dopant source are formed above the substrate by printing.

Abstract: According to one embodiment, the luminescent material exhibits a luminescence peak in a wavelength ranging from 500 to 600 nm when excited with light having an emission peak in a wavelength ranging from 250 to 500 nm. The luminescent material has a composition represented by Formula 1 below: (M1-xCex)2yAlzSi10-zOuNw??Formula 1 wherein M represents Sr and a part of Sr may be substituted by at least one selected from Ba, Ca, and Mg; x, y, z, u, and w satisfy following conditions: 0<x?1, 0.8?y?1.1, 2?z?3.5, u?1 1.8?z?u, and 13?u+w?15.

Abstract: An organic light-emitting display device comprises a substrate, an anode electrode formed on the substrate, an organic layer formed on the anode electrode, a cathode electrode formed on the organic layer, and an organic capping layer formed on the cathode electrode and containing a capping organic material and a rare-earth material which has higher oxidizing power than the material which forms the cathode electrode.

Abstract: The invention provides a light emitting diode device comprising a light emitting diode arranged on a substrate and a wavelength converting element. The wavelength converting element contains a luminescent material a Mn4+-activated fluoride compound having a garnet-type crystal structure. The Mn4+-activated fluoride compound preferably answers the general formula {A3}[B2-x-yMnxMgy](Li3)F12-dOd, in which formula A stands for at least one element selected from the series consisting of Na+ and K+ and B stands for at least one element selected from the series consisting of Al3+, B3+, Sc3+, Fe3+, Cr3+, Ti4+ and In3+, and in which formula x ranges between 0.02 and 0.2, y ranges between 0.0 (and incl. 0.0) and 0.4 and d ranges between 0 (and incl. 0) and 1. As the luminescent materials of the described type and structure have high stability and low sensitivity towards humid environments, they can advantageously be used as in wavelength conversion elements of LED devices.

Abstract: A fluoride phosphor activated with tetravalent Mn can absorb blue light and emit red light, and is represented by the general formula: K2[M1-aMn4+aF6] (M is at least one selected from group-IV elements of Ti, Zr, and Hf and group IVB elements of Si, Ge, Sn, and a is 0<a<0.2). The particles of the phosphor have a surface region where the concentration of tetravalent Mn is lower than the inner region of the phosphor particles.

Abstract: A white light source 1 of an embodiment has color temperature of 2600 [K] or more and less than 3200 [K]. The white light source of the embodiment has a ratio of a minimum emission intensity to a maximum emission intensity in a wavelength region of from 450 to 610 [nm] on an emission spectrum of 0.16 or more and less than 0.35.

Abstract: It is an object to provide an element structure which is suitable for a light-emitting element using a phosphorescent compound. It is another object to provide a light-emitting element with high luminous efficiency by using the element structure. In particular, it is another object to provide a light-emitting element with high luminous efficiency and long life. A light-emitting element is manufactured, which includes a first light-emitting layer and a second light-emitting layer provided to be in contact with each other between a first electrode and a second electrode, where the first light-emitting layer includes a hole transporting host material and a phosphorescent compound, and the second light-emitting layer includes an electron transporting host material and the phosphorescent compound.

Abstract: The present invention relates to white-emitting organic electroluminescent devices which have at least one blue-fluorescent emitter layer and at least one phosphorescent emitter layer.

Abstract: A display device includes: a third electrode provided on a side of the second electrode opposite to the light-emitting layer; and an efficiency improving layer improving an efficiency of light extraction from the light-emitting layer, and the efficiency improving layer being provided between the second and third electrodes. The first and third electrodes are each in a laminated structure including a first layer being transmissive, and a second layer being transmissive and having a refractive index higher than a refractive index of the first layer.

Abstract: An organic EL display device includes an organic EL section including an organic layer held between a first electrode and a second electrode, one of the two electrodes serving as a reflective electrode, and the other serving as a translucent electrode; a blue pixel portion including a blue color filter configured to mainly transmit a light component in a blue wavelength region of light emitted from the organic EL section; a green pixel portion including a green color filter configured to mainly transmit a light component in a green wavelength region of the light emitted from the organic EL section; and a red pixel portion including a wavelength conversion layer configured to absorb at least one of the light component in the blue wavelength region and the light component in the green wavelength region of the light emitted from the organic EL section and emit light in a red wavelength region.