Abstract: A planar light source device includes a lower substrate, a cathode electrode a carbon nanotube, an upper substrate, a fluorescent layer, and an anode electrode. The cathode electrode is on the lower substrate. The carbon nanotube is electrically connected to the cathode electrode. The upper substrate faces the lower substrate. The fluorescent layer and the anode electrode are formed on the upper substrate. Therefore, the planar light source device generates light without using mercury.

Abstract: A white light emitting device including: a blue light emitting diode chip having a dominant wavelength of 443 to 455 nm; a red phosphor disposed around the blue light emitting diode chip, the red phosphor excited by the blue light emitting diode chip to emit red light; and a green phosphor disposed around the blue light emitting diode chip, the green phosphor excited by the blue light emitting diode chip to emit green light, wherein the red light emitted from the red phosphor has a color coordinate falling within a space defined by four coordinate points (0.5448, 0.4544), (0.7079, 0.2920), (0.6427, 0.2905) and (0.4794, 0.4633) based on the CIE 1931 chromaticity diagram, and the green light emitted from the green phosphor has a color coordinate falling within a space defined by four coordinate points (0.1270, 0.8037), (0.4117, 0.5861), (0.4197, 0.5316) and (0.2555, 0.5030) based on the CIE 1931 color chromaticity diagram.

Abstract: An electron-emitting device has at least a cathode electrode, an electron-emitting member which is electrically connected to the cathode electrode, and a resistive layer which is provided between the cathode electrode and the electron-emitting member. The resistive layer is composed of the same material as that of the electron-emitting member, and film density of the resistive layer is lower than film density of the electron-emitting member.

Abstract: Provided are a phosphor paste composition, a flat display device including the same, and a method of manufacturing the flat display device. The phosphor paste composition contains a phosphor with at least a heat-resistant material selected from a Group II atom-containing material, a Group III atom-containing material, and a Group IV atom-containing material, a binder, and an organic solvent. By using the phosphor paste composition, the deterioration of the phosphor can be prevented during a heat treating process. The flat display device includes a phosphor layer containing the phosphor coated with the heat-resistant material such that lifetime of the flat display device is increased and a permanent residual image phenomenon, the adsorption of water by the phosphor, and the like can be prevented.

Abstract: A light-emitting device includes: a first lead including a bonding region and a first outer edge extending generally parallel to a first direction; a light-emitting element bonded to the bonding region; a second lead including an electrical connection region connected to the light-emitting element; and a molded body including a first side surface generally perpendicular to the first direction, a second side surface provided on a side opposite to the first side surface and being generally perpendicular to the first direction, a lower surface, and a recess provided in a surface opposite to the lower surface, the molded body being formed so that one end portion of the first lead protrudes from the first side surface, the other end portion of the first lead and an end portion of the second lead each protrude from the second side surface, and the bonding region and the electrical connection region are exposed from a bottom surface of the recess.

Abstract: An electroluminescent display comprising a mask defining the information to be displayed and an electroluminescent (EL) backlight. The mask compress a layer (13) of physically-stabilised liquid crystal switchable to define the information to be displayed mounted in front of an EL layer (16) of the backlight. At least one pair of electrodes (12, 20) are arranged to generate, in use, an electric field across both the EL layer (16) and the LC layer (13). A barrier layer (15) is provided between the LC layer (13) and the EL layer (16) that restricts migration of liquid crystal from the LC layer (13) to the EL layer (16).

Abstract: An illumination device for a display device, which is formed from a substrate and a plurality of white light-emitting devices disposed on top of the substrate, and can be used as a backlight for a liquid crystal display panel, wherein the white light-emitting devices have a light source and a phosphor that is excited by the light source and emits light, and a fluorescent material with a composition represented by a general formula: M(0)aM(1)bM(2)x?(vm+n)M(3)(vm+n)?yOnNz?n is used as the phosphor.

Abstract: A method of producing a film containing an oxide having a plurality of tubular structures and a plurality of conjugated polymer chains includes preparing a solution by dissolving a precursor substance having a first site containing a precursor of the oxide and a second site containing a precursor of a component constituting the conjugated polymer chains; forming a film containing the oxide having the tubular structures on a substrate, the surface of which exhibits anisotropy, by applying the solution onto the substrate so that the tubular structures and the conjugated polymer chains are oriented; and forming the conjugated polymer chains in pores of the tubular structures by polymerizing the second site in the film formed on the substrate, wherein an inorganic component of the first site is connected to carbon of the second site through a covalent bond.

Abstract: This invention provides a novel phosphor material that has better brightness than conventional phosphors using dispersed rare earth ions, and that possesses excellent light resistance, temporal stability, and the like, and a light-emitting device with high brightness comprising such phosphor material and an excitation ultraviolet light source corresponding to the properties thereof. A phosphor comprising a silicon-containing solid matrix and semiconductor superfine particles dispersed therein at a concentration of 5×10?4 to 1×10?2 mol/L, said semiconductor superfine particles having a fluorescence quantum yield of 3% or greater and a diameter of 1.5 to 5 nm, and a light-emitting device including said phosphor and a light source for excitation light with an intensity of 3 to 800 W/cm2.

Abstract: A plasma display device has a plasma display panel including phosphor layers 35 which emits light through electric discharge to output blue, green, and red lights, wherein at least one of the green light and the red light is a wavelength-converted light which is a light emitted from a first phosphor and wavelength-converted by a second phosphor, the first phosphor is a phosphor selected from a plurality of phosphors having an emission peak in a wavelength region ranging from at least 200 nm to less than 600 nm, the second phosphor used to emit the green light is a green phosphor having an emission peak in a wavelength region ranging from at least 500 nm to less than 560 nm, and the second phosphor used to emit the red light is a red phosphor having an emission peak in a wavelength region ranging from at least 600 nm to less than 780 nm.

Abstract: Lamps and bulbs are disclosed generally comprising different combinations and arrangement of a light source, one or more wavelength conversion materials, regions or layers which are positioned separately or remotely with respect to the light source, and a separate diffusing layer. This arrangement allows for the fabrication of lamps and bulbs that are efficient, reliable and cost effective and can provide an essentially omni-directional emission pattern, even with a light source comprised of a co-planar arrangement of LEDs. Additionally, this arrangement allows aesthetic masking or concealment of the appearance of the conversion regions or layers when the lamp is not illuminated. Some embodiments of the present invention utilize LED chips to provide one or more lighting components instead of providing the components through phosphor conversion. This can provide for lamps that can be operated with lower power and can be manufactured at lower cost.

Abstract: A light emitting device package is provided that comprises first and second light emitting devices including light emitting diodes, a body a body having a first cavity in which the first light emitting device is positioned and a second cavity in which the second light emitting device is positioned and a resin material formed in the cavity, wherein the resin material includes, a first resin material formed in the first cavity, a second resin material formed in the second cavity, and a third resin material formed an upper surface of the first and second resin materials, wherein at least one of the first resin material and the second resin material includes a light diffusing material.

Abstract: According to the embodiments, an easy-to-fabricate light-emitting apparatus is provided in which a plurality of phosphors is disposed so as not to overlap each other. The light-emitting apparatus includes a light source that emits excitation light; a substrate having a protrusion and recess configuration where first planes and second planes which intersect the first planes are formed periodically; first phosphor layers formed on the first planes and absorbing the excitation light to emit a first fluorescence; and second phosphor layers formed on the second planes and absorbing the excitation light to emit a second fluorescence with a wavelength different from that of the first fluorescence.

Abstract: Disclosed are a light emitting device package and a lighting system. The light emitting device package includes a body including a recess and a plurality of light emitting device receiving parts formed in a bottom surface of the recess, a plurality of light emitting devices separately provided in the light emitting device receiving parts, a plurality of individual lenses spaced apart from each other on the light emitting device receiving parts, and a common lens covering the individual lenses, wherein at least one of the plurality of individual lenses comprises a concave part formed at the upper portion of the individual lens.

Abstract: Solid state lamps and bulbs comprising different combinations and arrangements of a light source, one or more wavelength conversion materials, regions or layers which are positioned separately or remotely with respect to the light source, and a separate diffuser. These are arranged on a heat sink in a manner that allows for the fabrication of lamps and bulbs that are efficient, reliable and cost effective and can provide an essentially omni-directional emission pattern, even with a light source comprised of a co-planar arrangement of LEDs. Additionally, this arrangement allows aesthetic masking or concealment of the appearance of the conversion regions or layers when the lamp is not illuminated. Various embodiments of the invention may be used to address many of the difficulties associated with utilizing efficient solid state light sources such as LEDs in the fabrication of lamps or bulbs suitable for direct replacement of traditional incandescent bulbs.

Abstract: An optical emitter enabling conversion of light from a light source. The optical emitter includes a first conic reflector defining an aperture for receiving the light source, a second conic reflector opposite the first conic reflector for collimating light emitted by the light source, and a volumetric light conversion element between at least a portion of the first reflector and at least a portion of the second reflector. The optical emitter can also include a convex mirror adjacent the vertex of the second conic reflector, and an elliptical element adjacent the first conic reflector. The light conversion element can include phosphor dispersed in a resin to convert light from a first wavelength to light of a second, longer, wavelength, wherein converted light is emitted from the light conversion element.

Abstract: A lighting device comprising a light source and a diffuser spaced from the light source. The lighting device further comprises a wavelength conversion material disposed between the light source and the diffuser and spaced from the light source and the diffuser, wherein the diffuser is shaped such that there are different distances between the diffuser and said conversion material at different emission angles. In other embodiments the diffuser includes areas with different diffusing characteristics. Some lamps are arranged to meet A19 and Energy Star lighting standards.

Abstract: The present invention relates to a thin film transistor, a method thereof and an organic light emitting device including the thin film transistor. According to an embodiment of the present invention, the thin film transistor includes a substrate, a control electrode, an insulating layer, a first electrode and a second electrode, a first ohmic contact layer and a second ohmic contact layer, and a semiconductor layer. The control electrode is formed on the substrate, and the insulating layer is formed on the control electrode. The first and the second electrodes are formed on the insulating layer. The first ohmic contact layer and the second ohmic contact layer are formed on the first electrode and the second electrode. The semiconductor layer is formed on the first ohmic contact layer and the second ohmic contact layer to fill between the first and the second electrodes.

Abstract: A cold cathode fluorescent lamp which makes a step dedicated to the acquisition of advantageous effects unnecessary without lowering an optical flux maintaining factor and, at the same time, prevents peeling-off of a phosphor layer in a step of bending light transmitting glass tube is provided. The cold cathode fluorescent lamp includes a light-transmitting glass tube, a phosphor layer which is formed on an inner surface of the light-transmitting glass tube, mercury and a rare gas which is filled in the inside of the light-transmitting glass tube, and cold cathodes which are arranged in a sealed manner in both end portions of the light-transmitting glass tube in a state that the cold cathodes face each other in an opposed manner, wherein the phosphor layer is constituted of a plurality of phosphor particles and a bonding agent. The bonding agent is made of aluminum oxide and boron oxide. The phosphor particles are covered with the bonding agent by coating.

Abstract: Various phosphor compositions and organic compounds can be used in fluorescent layers for scanning beam displays. In general, one aspect of the subject matter described in this specification can be embodied in method of adjusting an emission spectrum of a phosphor material used in a display system that includes a fluorescent layer that absorbs an excitation light at a single wavelength and emits visible light. The method includes generating a binder mixture by combining one or more non-phosphor organic compounds with a binder material, wherein the binder mixture substantially transmits the excitation light and substantially absorbs a portion of the emission spectrum of the phosphor material. The method also includes combining the binder mixture with the phosphor material.

Abstract: Disclosed are a light emitting device package and a light unit having the same. The light emitting device package includes a ceramic substrate; a light emitting device on the ceramic substrate; a first light-transmissive resin layer on the ceramic substrate to cover the light emitting device; and a phosphor layer on the first light-transmissive resin layer.

Abstract: An inorganic electroluminescence device includes a substrate, a first electrode layer including a plurality of segment electrodes disposed on the substrate and separated from each other, a phosphor layer on the first electrode layer, a dielectric layer on the phosphor layer, and a second electrode layer on the dielectric layer. A voltage is applied to each of the plurality of segment electrodes so that the inorganic electroluminescence device can be turned on or turned off.

Abstract: There is provided a light source unit which includes a luminescent light source which receives excitation light so as to emit light of a predetermined wavelength band, excitation light sources which shine excitation light on to the luminescent light source, a reflection space having the luminescent light source in an interior thereof and an emission space which emits luminescent light source light emitted from the reflection space from an emission port whose area is made smaller than the area of the luminescent light source and a projector which employs the light source unit.

Abstract: The present subject matter relates to lamps for general lighting applications. More specifically, white light lamps described herein use semiconductor source to pump remotely deployed phosphor to produce light of desired characteristics. The lamps conform to form factors and/or use lamp base connectors of widely accepted lamp designs, such as those of common incandescent lamps and/or compact fluorescent lamps.

Abstract: A light emitting composition includes a light-emitting lumophore-functionalized nanoparticle, such as an organic-inorganic light-emitting lumophore-functionalized nanoparticle. A light emitting device includes an anode, a cathode, and a layer containing such a light-emitting composition. In an embodiment, the light emitting device can emit white light.

Abstract: A lighting arrangement comprises: a light transmissive substantially spherical shell; at least one LED located within the shell and operable to generate light of a first wavelength range and at least one phosphor operable to absorb at least a portion of the light emitted by the LED(s) and to emit light of a different wavelength range, wherein light generated by the arrangement comprises the combined light emitted by the LED(s) and the phosphor(s). The phosphor(s) can be provided as a layer on at least a part of the inner and/or outer surfaces of the shell or incorporated within the shell.

Abstract: A fluorescent lamp including a phosphor layer including (Y1-x-yGdx)AlO3:EU3+y, wherein 0.4?x?0.7 and 0?y?0.1, and at least one of each of a green and blue emitting phosphor. The resulting lamp will exhibit a white light having a color rendering index of preferably 90 or higher with a correlated color temperature of from 2500 to 10000 Kelvin. The use of (Y1-x-yGdx)AlO3:Eu3+y in phosphor blends of lamps results in high CRI light sources with increased stability and acceptable lumen maintenance over, the course of the lamp life.

Abstract: The invention relates to a polychromatic electronic display device with an electroluminescent screen, particularly with organic light-emitting diodes (OLEDs), wherein the polychromatic electronic display device comprises an electroluminescent emission surface and, towards the inside of the device, at least one substrate (2) coated with a pixel matrix, said device including a stack of a plurality of electroluminescent cells (UI and Ue) in which each pixel comprises at least three sub-pixels having different colours. According to the invention, for each pixel, the sub-pixel having the lowest emission wavelength ?c, or critical sub-pixel, is exclusively located in the external unit (Ue) adjacent to said emission surface, each of the other sub-pixels emitting at a wavelength higher than ?c being exclusively located in an internal unit (UI) relative to said external unit and adjacent to the substrate, the surface area of this critical sub-pixel being higher than that of each of the other sub-pixels.

Abstract: The invention relates to a phosphor in a polycrystalline ceramic structure and a light-emitting element provided with the same comprising a Light-Emitting Diode (LED) in which a composite structure of phosphor particles is embedded in a matrix, characterized in that the matrix is a ceramic composite structure comprising a polycrystalline ceramic alumina material, hereafter called luminescent ceramic matrix composite. This luminescent ceramic matrix composite can be made by the steps of converting a powder mixture of ceramic phosphor particles and alumina particles into a slurry, shaping the slurry into a compact, and applying a thermal treatment, optionally in combination with hot isostatic pressing into a polycrystalline phosphor-containing ceramic alumina composite structure.

Abstract: To provide an alkaline-earth metal halogen phosphor that has high luminescent characteristics even when used with an excitation light source that emits light of the near-ultraviolet region, a phosphor-containing composition and a light emitting device using the phosphor, and a display and an illuminating device using the light emitting device, the phosphor of the present invention has a chemical composition represented by the formula (1) below and an external quantum efficiency, when excited with light of 400-nm wavelength, of 77% or higher. (Sr10-x-y-zMxEuyMnz)(PO4)6(Cl1-aQa)2??(1) (In the above formula (1), “M” represents at least one kind of element selected from the group consisting of Ba, Ca, Mg, and Zn, “Q” represents at least one kind of element selected from the group consisting of F, Br, and I, and each of “x”, “y”, “z”, and “a” represents a number satisfying the following requirements: 0?x<10, 0.3?y?1.5, 0?z?3, 0?a?1, and x+y+z?10.

Abstract: A method for making a field emission lamp generally includes the steps of: (a) providing a cathode emitter; (b) providing a transparent glass tube having a carbon nanotube transparent conductive film and a fluorescent layer, wherein the carbon nanotube transparent conductive film and the fluorescent layer are both disposed on an inner surface of the transparent glass tube; (c) providing a first glass feedthrough, a second glass feedthrough, and a nickel pipe, wherein the first glass feedthrough has an anode down-lead pad and an anode down-lead pole connected to the anode down-lead pad, and the second glass feedthrough has a cathode down-lead pole; (d) securing the nickel pipe to one end of the cathode emitter and securing the other end of the cathode emitter to one end of the cathode down-lead pole of the second glass feedthrough; and (e) melting and assembling the first and second glass feedthroughs to ends of the transparent glass tube respectively.

Abstract: Lighting systems and devices offer dynamic control or tuning of a color characteristic, e.g. color temperature, of white light. The exemplary lighting systems and devices are used for general lighting applications that utilize solid state sources to pump remotely deployed phosphors. Two or more phosphors emit visible light of different visible spectra, and these spectra are somewhat broad, e.g. pastel, so that combinations thereof can approach white light temperatures including points along the black body curve. Independent adjustment of the intensities of electromagnetic energy emitted by the solid state sources adjusts levels of excitations of the phosphors, in order to control a color characteristic of the visible white light output of the lighting system or device.

Abstract: The efficiency and color temperature of a lighting device may be improved by using wavelength shifting material, such as a phosphor, to absorb less desired wavelengths and transmit more desired wavelengths. A reflective filter (e.g., dichroic or dielectric mirror material) may pass desired wavelengths while returning or reflecting less desired wavelengths away from an optical exit back toward wavelength shifting material which may either be disposed in the optical path or on the periphery of the light source.

Abstract: An oxynitride fluorescent material includes a JEM phase as a mother crystal and a luminescence center element Ce. The oxynitride fluorescent material has a fluorescence spectrum with a maximum emission wavelength of 420 nm to 500 nm inclusive and an excitation spectrum with a maximum excitation wavelength of 250 nm to 400 nm inclusive.

Abstract: A tube lamp has a tubular portion that serves both as a light guide for energy from a solid state source and as a container for a material bearing a nanophosphor that is pumped by the energy from the source as the energy traverses the light guide. However, the tubular portion of the light guide also allows emission of light produced by the phosphor when excited. The material with the nanophosphor dispersed therein may appear either clear or translucent when the lamp is off and the nanophosphor is not excited by energy from the source.

Abstract: A compound is provided containing silicon, aluminum, strontium, europium, nitrogen, and oxygen is used that enables a red phosphor having strong luminous intensity and high luminance to be obtained, and that enables the color gamut of a white LED to be increased with the use of the red phosphor. The red phosphor contains an element A, europium, silicon, aluminum, oxygen, and nitrogen at the atom number ratio of the following formula: [A(m?x)Eux]Si9AlyOnN[12+y?2(n?m)/3]. The element A in the formula is at least one of magnesium, calcium, strontium, and barium, and m, x, y, and n in the formula satisfy the relations 3<m<5, 0<x<1, 0<y<2, and 0<n<10.

Abstract: A light-emitting device is provide, which includes a first substrate, a first electrode and a second electrode, which are disposed above the first substrate and insulated from each other, enabling a difference in electrical potential to be given between the first electrode and the second electrode, a second substrate disposed to face the first substrate and spaced apart from the first substrate, a light-emitting layer disposed between the first substrate and the second substrate, the light-emitting layer includes a light-emitting material which emits light through an electrochemical oxidation or reduction thereof and chloride ions, and a barrier electrode interposed between the first electrode and the second electrode to partition the light-emitting layer. This barrier electrode is used as a standard for the electrical potential.

Abstract: An LED-based lighting device and method for making the same are disclosed. The lighting device includes an LED light source mounted on a heat sink, a power adaptor, and a controller. The power adaptor is configured to be interchangeable with a conventional incandescent bulb power adapter. The controller provides an average current to the LED light source when power is coupled to the device via the power adaptor. The average current causes the LED light source to generate light of a predetermined standard intensity that is substantially independent of variations in the LED light source from device to device. In one aspect of the invention, the LED light source includes a plurality of LEDs connected in series, the LEDs are bonded to the heat sink and connected to one another in series by wire bonds and to conducting traces on the heat sink.

Abstract: A full-color active matrix organic light emitting display including a transparent substrate, a color filter positioned on an upper surface of the substrate, a spacer layer formed on the upper surface of the color filter, a metal oxide thin film transistor backpanel formed on the spacer layer and defining an array of pixels, and an array of single color, organic light emitting devices formed on the backpanel and positioned to emit light downwardly through the backpanel, the spacer layer, the color filter, and the substrate in a full-color display.

Abstract: The present invention provides a phosphor with less luminance degradation that includes an oxide that is excellent in chemical stability and allows the electrostatic charge of the phosphor surface to shift toward positive direction. The present invention is a phosphor including a phosphor body and a composite oxide on at least a part of the surface of the phosphor body. The composite oxide contains M, Sn, and O, and M is at least one element selected from the group consisting of Ca, Sr, and Ba.

Abstract: A full color display comprising a red, a green, and a blue light emitting diode, each light emitting diode including a light emitting region having at least one layer of single crystal rare earth material, the rare earth material in each of the light emitting diodes having at least one radiative transition, and the rare earth material producing a radiation wavelength of approximately 640 nm in the red light emitting diode, 540 nm in the green light emitting diode, and 460 nm in the blue light emitting diode. Generally, the color of each LED is determined by selecting a rare earth with a radiative transition producing a radiation wavelength at the selected color. In cases where the rare earth has more than one radiative transition, tuned mirrors can be used to select the desired color.

Abstract: An electron-emitting device includes an electron-emitting film containing molybdenum. A spectrum obtained by measuring a surface of the electron-emitting film by X-ray photoelectron spectroscopy has a first peak having a peak top in the range of 229±0.5 eV and a sub peak having a peak top in the range of 228.1±0.3 eV.

Abstract: A headlamp 1 includes a laser diode 3 that emits a laser beam, a light emitting part 7 that emits light upon receiving the laser beam emitted from the laser diode 3, and a reflection mirror 8 that reflects the light emitted from the light emitting part 7. According to the headlamp 1, the light emitting part 7 has a luminance greater than 25 cd/mm2, and an area size of an aperture plane 8a perpendicular to a direction in which an incoherent light travels outward from the headlamp 1 is less than 2000 mm2.

Abstract: A white LED phosphor film is provided. The white LED phosphor film includes a transparent phosphor carrier, and an LED phosphor layer. The LED phosphor layer is manufactured on the phosphor carrier by screen printing process. A method of manufacturing the white LED phosphor film is also provided.

Abstract: A phosphor having the lowest E/L ratio of the luminance (L) to the luminous efficiency (E) of each phosphor for obtaining a target chromaticity of white using a plurality of phosphors which emit different colors on a light-emitting substrate is selected, and the light reflectance of the portion of the metal back layer formed on this phosphor is set to be higher than the portion formed on the other phosphors.

Abstract: An Li-containing ?-sialon-based phosphor represented by the formula (1): LixEuySi12-(m+n)Al(m+n)On+?N16-n-? (wherein assuming that average valence of Eu is a, x+ya+?=m; 0.45?x<1.2, 0.001?y?0.2, 0.9?m?2.5, 0.5?n?2.4, and ?>0).

Abstract: The present invention provides a color electronic paper display device, which includes: a base; a first colorant disposed on the base; a second colorant disposed on the base, the second colorant having lower reflectance and size lower than those of the first colorant; and an electrode part for applying voltages to the first and second colorants.

Abstract: An optoelectronic device comprises an organic layer sequence (1), which emits an electromagnetic radiation (15) having a first wavelength spectrum during operation, and also a structured layer (2) which is disposed downstream of the organic layer sequence (1) in the beam path of the electromagnetic radiation (15) emitted by the organic layer sequence (1) and has first and second regions (2A, 2B). In this case, the first regions (2A) each have a wavelength conversion layer (3) designed to convert at least partially electromagnetic radiation (15) having the first wavelength spectrum into an electromagnetic radiation (16) having a second wavelength spectrum. Furthermore, the second regions (2B) each have a filter layer (4), which is opaque to an electromagnetic radiation having a third wavelength spectrum, which corresponds to at least one part of the second wavelength spectrum.

Abstract: An organic electroluminescent color light-emitting apparatus including, on a supporting substrate (100), a first pixel (10) comprising a first organic electroluminescent device emitting light having an emission peak wavelength of ?1; and a second pixel (20) comprising a second organic electroluminescent device emitting light having an emission peak wavelength of ?2; the emission peak wavelength ?2 being longer than ?1; the first and second organic electroluminescent devices each being a device in which a light-reflective electrode (11), (12), an organic luminescent medium layer and a semitransparent electrode are stacked in this order in the light-outcoupling direction; and m1 and m2 defined by the following formula (1) satisfying the relationship of m2+1.3>m1>m2+0.7 (m1 and/or m2 is an approximate integer of 0 or more).

Abstract: In a method of manufacturing an organic light emitting display, an organic light emitting layer and a second electrode are sequentially formed on a first sub-electrode, and a laser beam is irradiated onto the organic light emitting layer to partially remove the organic light emitting layer, so that the first sub-electrode is electrically connected to the second electrode. Thus, even though the second electrode is formed to have a small thickness in order to maximize an amount of light that is generated by the organic light emitting layer and exits to an exterior through the second electrode, the second electrode is electrically connected to the first sub-electrode, thereby reducing an electrical resistance of the second electrode.