Abstract: To provide a method of efficiently manufacturing an organic light-emitting element with excellent light-emitting characteristics by application, the method includes: preparing ink and filling an inkjet device having an ink ejection nozzle with the ink; preparing a substrate having a base layer including a first electrode; and positioning the inkjet device above the substrate, and causing the inkjet device to eject a drop of the ink onto the base layer, wherein, in the preparation of the ink, a value Z denoting a reciprocal of the Ohnesorge number Oh determined by density ? (g/m3), surface tension ? (mN·m), and viscosity ? (mPa·s) of the ink and a diameter r (mm) of the ink ejection nozzle satisfies Formula 1, in the ejection of the drop of the ink, speed V (m/s) of the ejected drop satisfies Formula 2, and the value Z and the speed V (m/s) satisfy Formula 3.

Abstract: To provide a method of efficiently manufacturing an organic light-emitting element with excellent light-emitting characteristics by application, the method includes: preparing ink and filling an inkjet device having an ink ejection nozzle with the ink; preparing a substrate having a base layer including a first electrode; and positioning the inkjet device above the substrate, and causing the inkjet device to eject a drop of the ink onto the base layer, wherein, in the preparation of the ink, a value Z denoting a reciprocal of the Ohnesorge number Oh determined by density ? (g/m3), surface tension ? (mN·m), and viscosity ? (mPa·s) of the ink and a diameter r (mm) of the ink ejection nozzle satisfies Formula 1, in the ejection of the drop of the ink, speed V (m/s) of the ejected drop satisfies Formula 2, and the value Z and the speed V (m/s) satisfy Formula 3.

Abstract: To provide a method of efficiently manufacturing an organic light-emitting element with excellent light-emitting characteristics by application, the method includes: preparing ink and filling an inkjet device having an ink ejection nozzle with ink; preparing a substrate having a base layer including a first electrode; and positioning the inkjet device above the substrate, and causing the inkjet device to eject a drop of the ink onto the base layer, wherein, in the preparation of the ink, a value Z denoting a reciprocal of the Ohnesorge number Oh determined by density ? (g/m3), surface tension ? (mN·m), and viscosity ? (mPa·s) of the ink and a diameter r (mm) of the ink ejection nozzle satisfies Formula 1, in the ejection of the drop of the ink, speed V (m/s) of the ejected drop satisfies Formula 2, and the value Z and the speed V (m/s) satisfy Formula 3.

Abstract: To increase light-extraction efficiency and simplify manufacturing process. An organic EL panel includes: first electrode reflecting incident light; second electrode transmitting incident light therethrough; organic light-emitting layer emitting light of corresponding color among RGB colors; first functional layer including charge injection/transport layer and at least one other layer, and disposed between the first electrode and the light-emitting layer; and second functional layer disposed between the second electrode and the light-emitting layer. The first functional layers of the RGB colors are equal in film thickness, the organic light-emitting layers of the RGB colors are equal in optical distance from the first electrode, the second functional layers of the RGB colors are equal in film thickness, the organic light-emitting layers of the RGB colors are equal in optical distance from the second electrode, and the organic light-emitting layers of the RGB colors differ in film thickness.

Abstract: To provide a method of efficiently manufacturing an organic light-emitting element with excellent light-emitting characteristics by application, the method includes: preparing ink and filling an inkjet device having an ink ejection nozzle with the ink; preparing a substrate having a base layer including a first electrode; and positioning the inkjet device above the substrate, and causing the inkjet device to eject a drop of the ink onto the base layer, wherein, in the preparation of the ink, a value Z denoting a reciprocal of the Ohnesorge number Oh determined by density ? (g/m3), surface tension ? (mN·m), and viscosity ? (mPa·s) of the ink and a diameter r (mm) of the ink ejection nozzle satisfies Formula 1, in the ejection of the drop of the ink, speed V (m/s) of the ejected drop satisfies Formula 2, and the value Z and the speed V (m/s) satisfy Formula 3.

Abstract: To increase light-extraction efficiency and simplify manufacturing process. An organic EL panel includes: first electrode reflecting incident light; second electrode transmitting incident light therethrough; organic light-emitting layer emitting light of corresponding color among R, G, and B colors; first functional layer including charge injection/transport layer and at least one other layer, and disposed between the first electrode and the light-emitting layer; and second functional layer disposed between the second electrode and the light-emitting layer. The charge injection/transport layers of R and G colors are equal in film thickness, and differ in film thickness from the charge injection/transport layer of the B color, the at least one other layers of R, G, and B colors are equal in film thickness, the second functional layers of R, G, and B colors are equal in film thickness, and the light-emitting layers of R, G, and B colors differ in film thickness.

Abstract: To increase light-extraction efficiency and simplify manufacturing process. An organic EL panel includes: first electrode reflecting incident light; second electrode transmitting incident light therethrough; organic light-emitting layer emitting light of corresponding color among R, G, and B colors; first functional layer including charge injection/transport layer and at least one other layer, and disposed between the first electrode and the light-emitting layer; and second functional layer disposed between the second electrode and the light-emitting layer. The charge injection/transport layers of R, G, and B colors differ in film thickness, the at least one other layers of R, G, and B colors are equal in film thickness to one another, the second functional layers of R, G, and B colors are equal in film thickness to one another, and the light-emitting layers of R and G colors are equal in film thickness, and differ in film thickness from the light-emitting layer of B color.

Abstract: An organic EL panel includes first electrode, second electrode; organic light-emitting layer of each of RGB colors, and functional layer disposed between the first electrode and the light-emitting layer. The functional layers of RGB colors have the same film thickness. Film thickness of each of the functional layers of RG colors corresponds to a first local maximum of light-extraction efficiency of light before passing through a color filter, and film thickness of the functional layer of B color corresponds to a value of light-extraction efficiency smaller than a first local maximum of light-extraction efficiency of light before passing through a color filter. The light-emitting layers of RGB colors differ in film thickness, such that the functional layers of RGB colors have the film thickness. Accordingly, the light of each of RGB colors emitted externally after passing through the color filter exhibits a local maximum of light-extraction efficiency.

Abstract: An ink for an organic light-emitting element includes a first solvent, a second solvent, and a functional material. The first and second solvents have equal or similar boiling points. The first solvent is such that an imitatively formed functional layer formed by replacing the second solvent with the first solvent, in a light-emitting region of an organic light-emitting element, is thicker at both end portions than at a central portion and the top surfaces of the end portions are positioned higher than the top surface of the central portion. The second solvent is such that an imitatively formed functional layer formed by replacing the first solvent with the second solvent, in a light-emitting region of an organic light-emitting element, is thicker at a central portion than at both end portions and the top surface of the central portion is positioned higher than the top surfaces of the end portions.

Abstract: Problems to be solved of the present invention are to provide a method for producing an organic electroluminescent device capable of producing an organic electroluminescent device having long lifetime, an organic electroluminescent device having long lifetime, a planar light source, an illumination apparatus and a display apparatus each having long lifetime. Means for solving the problem is a method for producing an organic electroluminescent device comprising a first electrode, a second electrode and a light emitting layer arranged between the first and second electrodes, the light emitting layer containing an organic film, the method comprising a step of applying a solution containing an organic compound onto the surface of a layer which is to be located just below the light emitting layer, to form the organic film in a dark place.

Abstract: An ink for an organic electroluminescent device includes a functional material, a first solvent, a second solvent, and a third solvent. The functional material is for forming a functional layer of the organic electroluminescent device. The first solvent is for dissolving the functional material. The second solvent has a diester backbone and a second boiling point that is at most equal to a first boiling point of the first solvent or greater than the first boiling point of the first solvent by at most 20° C. The third solvent is an aliphatic alcohol and has a third boiling point that is less than the first boiling point of the first solvent and less than the second boiling point of the second solvent.

Abstract: An organic EL panel includes reflective electrodes, a transparent electrode, organic light-emitting layers, and functional layers that are each provided between a corresponding one of the reflective electrodes and a corresponding one of the respective organic light-emitting layers. The film thicknesses of the respective functional layers of R, G, and B colors are each 60 nm or less such that a local maximum of light-emitting efficiency for a corresponding color is exhibited, and are substantially equal to each other. The optical distances between the respective organic light-emitting layers of the R, G, and B colors and the respective reflective electrodes are each 100 nm or less, and are substantially equal to each other.

Abstract: An organic light-emitting element includes a reflective anode, a first functional layer, an organic light-emitting layer that emits blue light, a second functional layer, a transparent cathode, and a coating layer. An optical thickness of the first functional layer is greater than 0 nm but not greater than 316 nm. A difference in refractive index between the transparent cathode and either a layer adjacent to the transparent cathode within the second functional layer or a layer adjacent to the transparent cathode within the coating layer is from 0.1 to 0.7 inclusive. The transparent cathode has a physical thickness greater than 0 nm but not greater than 70 nm, a refractive index from 2.0 to 2.4 inclusive, and an optical thickness greater than 0 nm but not greater than 168 nm.

Abstract: An ink for an organic electroluminescent device includes a functional material, a first solvent, a second solvent, and a third solvent. The functional material is for forming a functional layer of the organic electroluminescent device. The first solvent is for dissolving the functional material. The second solvent has a diester backbone and a second boiling point that is at most equal to a first boiling point of the first solvent or greater than the first boiling point of the first solvent by at most 20° C. The third solvent is an aliphatic alcohol and has a third boiling point that is less than the first boiling point of the first solvent and less than the second boiling point of the second solvent.

Abstract: In an organic EL device, a hole injection electrode is formed on a glass substrate, and a hole injection layer, a hole transport layer and a luminescent layer are formed in turn on the hole injection electrode. An electron injection electrode is formed on the luminescent layer. The luminescent layer includes an organic iridium compound composed of a combination of a quinoline derivative and iridium. This organic iridium compound can emit red-orange light via a triplet excited state.

Abstract: A light emitting element, including a light emitting section and a connecting section, the light emitting section and the connecting section being provided over a substrate, along the in-plane direction of the substrate, an insulating section being formed between the light emitting section and the connecting section, the light emitting element, including: the light emitting section including: a bottom electrode, a phosphor layer formed over the bottom electrode; a first charge transporting layer formed over the phosphor layer; and a first top electrode formed over the first charge transporting layer, the connecting section including: an auxiliary electrode; a second charge transporting layer formed over the auxiliary electrode and connected electrically to the first charge transporting layer of the light emitting section; and a second top electrode formed over the second charge transporting layer and connected electrically to the first top electrode of the light emitting section; the insulating section electr

Abstract: A hole injection layer, a hole transport layer, a blue light emitting layer, an orange light emitting layer, an electron transport layer, an electron injection layer, and a cathode are formed in this order on an anode. The blue light emitting layer is composed of a host material doped with an assisting dopant and a luminescent dopant emitting blue light. A material used for the hole transport layer is used for the assisting dopant. The orange light emitting layer is composed of a host material doped with a luminescent dopant emitting orange light.

Abstract: An apparatus is provided with a plurality of organic light emitting devices, each having an organic light emitting layer that synthesizes two or more colors of light that are complementary to each other thereby producing white light, and a resonant structure by which a resonant wavelength is set to a predetermined wavelength, and outputs the white light via the resonant structure. The apparatus further comprises a plurality of wavelength selection units on a path through which the white light is outputted, each wavelength selection unit transmitting only light of a particular wavelength included in the outputted white light, the predetermined wavelength substantially coinciding with a wavelength corresponding to a primary color whose luminous intensity is, if without the resonant structure, the lowest of three primary colors included in the produced white light to bring it close to white light ideal for an image display light source.

Abstract: A light emitting display apparatus that achieves color display by using white light as a light source includes a plurality of organic light emitting devices each of which includes an organic light emitting layer that emits the white light. The organic light emitting device is configured so that a resonant wavelength in a thickness direction of the organic light emitting layer is positioned in the blue region of the spectrum. The light emitting display apparatus further includes a plurality of wavelength selection units each of which is provided on a path of the emission of the white light. The wavelength selection unit transmits light of a particular wavelength included in the white light.

Abstract: A display capable of preventing an emission layer from deterioration resulting from temperature rise of an electrode also when the same is increased in size and easily connectable with an external current source also when the same is connected with the external current source on a single portion is provided. This display comprises a first electrode formed on a substrate, an emission layer formed on the first electrode, a second electrode formed on the emission layer, a peripheral electrode, arranged to enclose the outer periphery of the second electrode and connected with at least three edges of the outer periphery of the second electrode, having a smaller sheet resistance value than the second electrode, and a current source connection terminal connected to the outer periphery of the peripheral electrode. Thus, current readily flows from the second electrode toward the peripheral electrode, while the current can be dispersedly fed along three or four directions.