Abstract: Provided is a light-emitting module from which light with uniform brightness can be extracted. Further, provided is a beautiful light-emitting module in which Newton's rings are not observed. The light-emitting module includes a first substrate, a light-emitting element formed on one surface side of the first substrate, a second substrate, a conductive spacer maintaining the gap between the first substrate and the second substrate, and a space in which the light-emitting element is sealed between the first substrate and the second substrate. Further, the pressure in the space is lower than or equal to the atmospheric pressure. Furthermore, the conductive spacer is electrically connected to the second electrode in a position overlapping with a partition provided over the first substrate so as to reduce a voltage drop occurring in the second electrode.

Abstract: An organic light-emitting device including: a substrate; a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; and an electron transport layer between the emission layer and the second electrode, wherein the emission layer includes a blue emission layer, the electron transport layer includes a unit that includes a first single layer including a first material, a first mixed layer on the first single layer and including the first material and a second material, a second single layer on the first mixed layer and including the second material, a second mixed layer on the second single layer and including the first and second materials, and a third single layer on the second mixed layer and including the first material, wherein the first mixed layer has a thickness that is larger than that of the second mixed layer.

Abstract: An organic electroluminescent display device includes a first electrode on a substrate, an organic layer including a light-emitting layer on the first electrode, a second electrode including lower and upper conductive layers sequentially stacked on the organic layer, and an insulating pattern extending into the organic layer through the lower conductive layer.

Abstract: The invention provides a light emitting device, comprising: a first electrode; a second electrode; a light emitting layer disposed between the first electrode and the second electrode, wherein the light emitting layer comprises an emitting material having a first triplet energy level (T1); and an exciton quenching layer disposed between the light emitting layer and the second electrode, wherein the exciton quenching layer comprises a non-emitting quenching material having a second triplet energy level (T1); wherein the exciton quenching layer is disposed adjacent to the light emitting layer; wherein the emitting material emits by phosphorescence or delayed fluorescence; and wherein the first triplet energy level (T1) is higher than the second triplet energy level (T1). Methods of making the same are also provided.

Abstract: A display apparatus includes red, green and blue organic EL elements that include a first and a second charge transport layer, each having the same thickness and common to all the organic EL elements. The red organic EL element includes a thickness adjustment layer between a red luminescent layer and the first charge transport layer, and has an emission position at the interface between the red luminescent layer and the thickness adjustment layer. The green organic EL element includes a green luminescent layer containing an assistant dopant whose content has been controlled so that the emission position lies in the green luminescent layer. The blue organic EL element has an emission position at the interface between the blue luminescent layer and the first charge transport layer or the second charge transport layer.

Abstract: A light-emitting module with improved light extraction efficiency and reliability is provided. In the light-emitting module, an element substrate with gas barrier properties is used; a light-emitting element is optically connected to one surface side of the element substrate; and a diffuse reflection layer is in contact with the other surface side of the element substrate. The diffuse reflection layer has a diffuse reflectance of greater than or equal to 75% and less than 100%. The light-emitting element includes a layer containing a light-emitting organic compound between a pair of light-transmitting electrodes. The element substrate transmits light emitted from the light-emitting element; the refractive index of the element substrate is different from that of layer containing a light-emitting organic compound by 0.2 or less.

Abstract: An organic light emitting device having increased outcoupling efficiency, a lighting apparatus including the organic light emitting device, and an organic light emitting display apparatus including the organic light emitting device. The organic light emitting device includes a substrate, a first electrode layer that is uniformly patterned on the substrate, a low refractive conductive layer disposed on the first electrode layer, and having a conductive material with a lower refractive index than a refractive index of an organic layer that is disposed on the low refractive conductive layer, and a second electrode layer formed on the organic layer.

Abstract: It is possible to manufacture a large-size, high-accuracy organic EL display using a plastic substrate and an organic EL display using a roll-shaped long plastic substrate. The organic EL display includes an organic EL device A having at least a lower electrode 300, an organic layer including at least a light emitting layer, and an upper electrode 305 and a thin film transistor B on a transparent plastic substrate 100, a source electrode or drain electrode of the thin film transistor B is connected to the lower electrode 300, the plastic substrate 100 has a gas barrier layer 101a, the thin film transistor B is formed on the gas barrier layer 101a, the thin film transistor B includes an active layer 203 containing a non-metallic element which a mixture of oxygen (O) and nitrogen (N) and has a ratio of N to O (N number density/O number density) from 0 to 2, and the organic EL device A is formed at least on the gas barrier layer 101a or one the thin film transistor B.

Abstract: An organic light-emitting display device and a method of its manufacture are provided, whereby manufacturing processes are simplified and display quality may be enhanced. The display device includes: an active layer of a thin film transistor (TFT), on a substrate and including a semiconducting material; a lower electrode of a capacitor, on the substrate, doped with ion impurities, and including a semiconducting material; a first insulating layer on the substrate to cover the active layer and the lower electrode; a gate electrode of the TFT, on the first insulating layer; a pixel electrode on the first insulating layer; an upper electrode of the capacitor, on the first insulating layer; source and drain electrodes of the TFT, electrically connected to the active layer; an organic layer on the pixel electrode and including an organic emission layer; and a counter electrode facing the pixel electrode, the organic layer between the counter electrode and the pixel electrode.

Abstract: Provided is organic EL display panel and an organic EL display apparatus that can be driven at a low voltage and that exhibit excellent light-emitting efficiency. Included are a substrate, a first electrode, an auxiliary wiring, a hole injection layer, a functional layer, and a second electrode. The hole injection layer and the second electrode are formed to be continuous above the first electrode and above the auxiliary wiring. The second electrode and the auxiliary wiring are electrically connected by the hole injection layer in an organic EL display panel. The hole injection layer is a metal oxide film, and metal atoms constituting the metal oxide include both metal atoms at a maximum valence thereof and metal atoms at a valence less than the maximum valence. The metal oxide film includes a metal oxide crystal with a particle diameter on the order of nanometers.

Abstract: An electrode for use in an organic optoelectronic device is provided. The electrode includes a thin film of single-wall carbon nanotubes. The film may be deposited on a substrate of the device by using an elastomeric stamp. The film may be enhanced by spin-coating a smoothing layer on the film and/or doping the film to enhance conductivity. Electrodes according to the present invention may have conductivities, transparencies, and other features comparable to other materials typically used as electrodes in optoelectronic devices.

Abstract: A nitride-based semiconductor light emitting device with improved characteristics of ohmic contact to an n-electrode and a method of fabricating the same are provided. The nitride-based semiconductor light emitting device includes an n-electrode, a p-electrode, an n-type compound semiconductor layer, and an active layer and a p-type compound semiconductor layer formed between the n- and p-electrodes. The n-electrode includes: a first electrode layer formed of at least one element selected from the group consisting of Pd, Pt, Ni, Co, Rh, Ir, Fe, Ru, Os, Cu, Ag, and Au; and a second electrode layer formed on the first electrode layer using a conductive material containing at least one element selected from the group consisting of Ti, V, Cr, Zr, Nb, Hf, Ta, Mo, W, Re, Ir, Al, In, Pb, Ni, Rh, Ru, Os, and Au.

Abstract: An organic electroluminescence display device includes: a light emission region including a plurality of pixels on a drive substrate, wherein each of the pixels includes, in order from a side close to the drive substrate, a first electrode, a functional layer, and a second electrode, the first electrode is provided for each of the pixels, and the functional layer includes at least an organic electroluminescence layer; a print pattern layer included in the functional layer and formed individually for each of the pixels; and a protrusion provided on the drive substrate and protruding further than any layer provided between the print pattern layer and the drive substrate.

Abstract: There are provided an electrode foil which has all the functions of a supporting base material, an electrode and a reflective layer and also has a superior thermal conductivity; and an organic device using the same. The electrode foil comprises a metal foil, wherein the electrode foil has at least one outermost surface which is an ultra-smooth surface having an arithmetic average roughness Ra of 10.0 nm or less as measured in accordance with JIS B 0601-2001.

Abstract: A donor substrate includes a base layer, a light to heat conversion layer on the base layer, an interlayer on the light to heat conversion layer, a low molecular weight transfer layer on the interlayer and an organic transfer layer on the low molecular weight transfer layer. The low molecular weight transfer layer includes an element in Group I or a compound of elements in Group I and Group VII.

Abstract: A photoluminescence diode which may decrease a driving voltage may include an anode, a cathode, an emission layer interposed between the anode and the cathode, and an electron accepting layer interposed between the emission layer and the cathode and including one material selected from fullerene, methanofulleren, doped fullerene, doped methanofulleren, a derivative thereof, and a mixture thereof.

Abstract: A suspension or solution for organic optoelectronic device is disclosed in this invention. The composition of the suspension or solution includes at least one kind of micro/nano transition metal oxide and a solvent. The composition of the suspension or solution can selectively include at least one kind of transition metal oxide ions or a precursor of transition metal oxide. Moreover, the making method and applications of the suspension or solution is also disclosed in this invention.

Abstract: Organic light emitting devices are provided. The organic light emitting device may include a substrate having a first refractive index, a first electrode on the substrate, a second electrode disposed between the substrate and the first electrode and having a thickness equal to or greater than one-hundredth of a minimum wavelength of visible light and equal to or smaller than five-hundredths of a maximum wavelength of the visible light, and an organic light emitting layer disposed between the first and second electrodes and having a second refractive index.

Abstract: According to one embodiment, an illumination device includes an anode, a metal layer, a cathode, an organic electroluminescent unit, first and second insulating layers, and a plurality of conductive piercing layers. The metal layer has an electrical resistance lower than that of the anode. The cathode is provided between the anode and the metal layer. The organic electroluminescent unit is provided between the anode and the cathode. The first insulating layer is provided between the cathode and the metal layer. The conductive piercing layers pierce the organic electroluminescent unit, the cathode, and the first insulating layer along a direction from the anode toward the metal layer to electrically connect the anode to the metal layer, and are separate entities from the metal layer. The second insulating layer is provided between the organic electroluminescent unit and the conductive piercing layers and between the cathode and the conductive piercing layers.

Abstract: The present invention relates to a process for producing an electronic device having two contacts, an anode and a cathode being completely or partly transmissive to light, one or more organic semi-conducting layers and one or more organic buffer layers between the contacts or the cathode and anode respectively. A solution is sprayed which contains organic material for applying at least one porous layer.

Abstract: A transparent organic EL element comprising: a transparent substrate, a first transparent electrode layer formed on the transparent substrate in stripe form, an insulating partition wall formed in stripe form in a direction orthogonal to the longitudinal direction of the first transparent electrode layer on the transparent substrate with the first transparent electrode layer formed, an organic EL layer including a light emitting layer and formed on the first transparent electrode layer in the light emitting region between the partition walls, a second transparent electrode layer formed on the organic EL layer and divided with the partition wall, and a first auxiliary electrode group formed on the second transparent electrode layer with a plurality of metal fine lines disposed parallel with each other, characterized in that an angle ?1 is 0°<?1<90°.

Abstract: An organic light-emitting element including an organic light-emitting layer, a transparent substrate, and a transparent electrode disposed between the organic light-emitting layer and the transparent substrate; and which treats the surface of the transparent substrate on the opposite side from the transparent electrode as a light-extraction surface. The transparent substrate has birefringence, and has a refraction index of a P polarized light that is less than a refraction index of an S polarized light. A polarized light wherein an oscillation direction of an electric field is parallel to a laminated surface of the light-emitting layer is designated S polarized light, and a polarized light that includes a vector of the direction of the progression of the light and in which the oscillation direction of the electric field is included in a plane perpendicular to the laminated surface is designated P polarized light.

Abstract: An organic light-emitting element includes a first electrode, an organic compound layer, and a second electrode on a substrate and emits light from the second electrode side, wherein the second electrode includes a first layer and a second layer in contact with the first layer sequentially from the substrate side, the second layer is a layer comprising Ag, and the first layer is a layer comprising Ag and Cs.

Abstract: Provided is a method for producing an organic electroluminescence device which contains an anode, a cathode and an organic layer between the anode and the cathode where the organic layer contains a light-emitting layer and an adjacent layer adjacent to the light-emitting layer, the method including: applying to the adjacent layer a coating liquid prepared by dissolving or dispersing a light-emitting material and a host material in a solvent, and heating the coating liquid applied to the adjacent layer at a temperature higher than a melting temperature of the host material and higher than a boiling point of the solvent, to thereby form the light-emitting layer, wherein a difference as an absolute value between contact angle A (°) of the light-emitting layer with respect to pure water and contact angle B (°) of the adjacent layer with respect to pure water is 13 (°) or smaller.

Abstract: An organic layer deposition apparatus, and a method of manufacturing an organic light-emitting display device using the organic layer deposition apparatus. The organic layer deposition apparatus includes: an electrostatic chuck that fixedly supports a substrate that is a deposition target; a deposition unit including a chamber maintained at a vacuum and an organic layer deposition assembly for depositing an organic layer on the substrate fixedly supported by the electrostatic chuck; and a first conveyer unit for moving the electrostatic chuck fixedly supporting the substrate into the deposition unit, wherein the first conveyer unit passes through inside the chamber, and the first conveyer unit includes a guide unit having a receiving member for supporting the electrostatic chuck to be movable in a direction.

Abstract: A method for fabricating an organic electroluminescent display device is provided. The organic electroluminescent display device includes a light-emitting cell having a cathode electrode, an anode electrode and an organic layer interposed therebetween; wherein the cathode electrode is electrically connected to a contact electrode via a contact hole; wherein the contact electrode has acid-resistance with respect to an etchant used in patterning the cathode electrode.

Abstract: In a display apparatus including pixels, each of which has organic EL elements which emit red, green, and blue (RGB) colors and a refractive index-control layer, an electrode at a light extraction side of each organic EL element is a silver layer in contact with a charge transport layer, the refractive index-control layer is arranged on the silver layer in common with the organic EL elements which emit RGB colors, and an effective refractive index (neff) represented by the following formula is in a range of 1.4 to 2.3. neff=0.7×nu+0.3×nd In the above formula, nu indicates the refractive index of the refractive index-control layer 3, and nd indicates the refractive index of the charge transport layer 1.

Abstract: A heterocyclic compound, organic light-emitting device, and a flat panel display device, the heterocyclic compound being represented by Formula 1 or 2 below:

Abstract: The organic electroluminescence element includes an anode metal layer above a substrate. The anode metal layer comprises an inner region and an outer region. The inner region is adjacent to and different than the outer region. An upper surface of the inner region is lower than an upper surface of the outer region. A metal oxide layer is on the inner region of the metal anode layer. A hole transport layer is above the metal oxide layer and the inner region. The hole transport layer comprises a hole-transporting organic material. An organic luminescent layer is above the hole transport layer and the inner region. A cathode layer is above the organic luminescent layer and the inner region. The cathode layer injects electrons into the organic luminescent layer. An insulating layer is above the outer region of the anode metal layer.

Abstract: Provided are an organic light emitting diode and a method of fabricating the same. The organic light emitting diode may include a light-scattering layer, a first electrode, an organic light-emitting layer, and a second electrode, which are sequentially stacked on a substrate, wherein the light-scattering layer may include uneven shaped nanostructures having irregular width and spacing. The method of fabricating the organic light emitting diode may include sequentially stacking a light-scattering medium layer and a metal alloy layer on a substrate, heat treating the metal alloy layer to form etching mask patterns, etching the light-scattering medium layer by using the etching mask patterns to form a light-scattering layer, removing the etching mask patterns, and forming a planarizing layer on the light-scattering layer.

Abstract: The organic electroluminescence element includes a substrate and an anode metal layer above the substrate. The anode metal layer includes an inner region between a pair of outer regions. A metal oxide layer is above the inner region and the outer regions of the anode metal layer. An insulating layer is above the metal oxide layer and the outer regions of the anode metal layer. A hole transport layer is above the metal oxide layer and the inner region of the anode metal layer. An organic luminescent layer is above the hole transport layer. A cathode layer is above the organic luminescent layer for injecting electrons into the organic luminescent layer. A thickness of the metal oxide layer on the inner region of the anode metal layer is greater than a thickness of the metal oxide layer on the outer regions of the anode metal layer.

Abstract: A highly reliable light-emitting device is provided. A light-emitting device in which problems due to a metal mask are prevented is provided. A light-emitting device in which a problem due to the resistance of an upper electrode layer of a light-emitting element is prevented is provided. An electrode layer is provided over a substrate in advance, and an EL layer and an upper electrode layer are formed in the same pattern without use of a metal mask so as to overlap with the electrode layer. After that, the electrode layer is electrically connected to the upper electrode layer. As a connection method, a laser light irradiation method, a method in which physical pressure is applied, a method in which heating is performed under the state where physical pressure is applied, or the like is used.

Abstract: The present invention relates to an electro-optical device provided with an electrode (10). The electrode comprising an electrically conductive structure extending in a plane. The structure comprises a grid of elongated elements (12) with length L and a width dimension D in said plane. The electrically conductive structure further comprises one or more contactfields (14) having an inscribed circle with a radius of at least 2D and a circumscribed circle with a radius of at most three times L. The area occupied by the contactfields (14) is at most 20% of the area occupied by the grid of elongated elements (12).

Abstract: A top emission type organic electroluminescent display device includes a first substrate including a pixel region, a switching TFT and a driving TFT, a passivation layer exposing a drain electrode of the driving TFT, a connection electrode contacting the drain electrode of the driving TFT, a partition wall corresponding to a border between adjacent pixel regions and overlapping an edge portion of the connection electrode, an x-ray shield layer on the connection electrode between adjacent partition walls, the x-ray shield layer patterned in the pixel region due to the partition wall, a first electrode on the x-ray shield layer, a bank covering the partition wall and contacting an edge portion of the first electrode, an organic emission layer on the first electrode between adjacent banks, a second electrode on the organic emission layer, and a second substrate facing the first substrate and being transparent.

Abstract: The present invention provides a light-emitting element and a light-emitting device which have high contrast, and specifically, provides a light-emitting device whose contrast is enhanced, not by using a polarizing plate but using a conventional electrode material. Reflection of external light is suppressed by provision of a light-absorbing layer included between a non-light-transmitting electrode and a light-emitting layer. As the light-absorbing layer, a layer is used, which is obtained by adding a halogen atom into a layer including an organic compound and a metal oxide. Further, the light-absorbing layer is formed also over a region in which a thin film transistor for driving a light-emitting element is formed, a region in which a wiring is formed, and the like, and thus light is extracted from the side opposite to the region in which the TFT is formed, thereby reducing reflection of external light.

Abstract: An organic optoelectronic device, such as an organic light emitting device, includes an anode, a cathode and an active organic layer between the anode and the cathode. The cathode includes a layer including a strontium compound, a first conductive layer over the layer including a strontium compound, and a second conductive layer over the first conductive layer, and provides a stable device.

Abstract: An organic light emitting device includes a first electrode formed over a substrate, an intermediate layer that is formed over the first electrode and includes an organic light emitting layer, and a second electrode that includes a central electrode unit disposed in a central region and a peripheral electrode unit separated from the central electrode unit and disposed in a peripheral region. The intermediate layer is disposed between the first and second electrodes. The organic light emitting device can readily secure a uniform brightness characteristic.

Abstract: By the invention it is proposed a method of manufacturing of an OLED-device, comprising the steps of providing a carrier substrate, depositing a first electrode material layer on said carrier substrate, forming electrically separated areas within the deposited first electrode material layer, depositing a layer of an organic optoelectronic active material (105) on said first electrode material layer, depositing a second electrode material layer on said organic optoelectronic active material layer. The method is characterized in that in the steps of depositing the organic optoelectronic active material layer and the second electrode material layer the carrier substrate is covered maskless over its entire functional area with said layers and that at least the second electrode material layer is ablated or rendered non-conductive in at least selected areas to form non-conductive areas within the second electrode material layer.

Abstract: A process for producing a substrate with electrode for an organic electroluminescent device comprising a low-refractive index layer, a functional layer, and a transparent electrode that are laminated in this order, the substrate being for an organic electroluminescent device wherein the refractive index n1 of the electrode, the refractive index n2 of the functional layer, and the refractive index n3 of the low-refractive index layer satisfy the following formula (1): { 0.3 ? ( n ? ? 1 - n ? ? 2 ) ? 0 n ? ? 1 ? n ? ? 2 > n ? ? 3 ( 1 ) , the process comprising the step of forming the low-refractive index layer by forming raised and depressed portions on the surface of the low-refractive index layer by means of imprinting that uses a mold wherein multiple particles having an average particle size of 1.

Abstract: Embodiments of the present invention are directed to a compound represented by Formula 1, and an organic light-emitting device including an organic film that includes the compound of Formula 1:

Abstract: There are provided an electrode foil which has both the functions of a supporting base material and a reflective electrode and also has a superior thermal conductivity and heat resistance; and an organic device using the same. The electrode foil comprises a metal foil; a diffusion prevention layer for preventing diffusion of metal derived from the metal foil, the diffusion prevention layer being provided directly on the metal foil; and a reflective layer provided directly on the diffusion prevention layer.

Abstract: A heterocyclic compound represented by Formula 1 below and an organic light-emitting device including the heterocyclic compound: wherein R1 and R2, and A and A? are defined as in the specification.

Abstract: An organic light emitting diode display includes a substrate, a display portion on the substrate, and a sealing substrate fixed on the substrate and sealingly engaging the display portion. The sealing substrate is fixed by an adhesive layer that surrounds the display portion. The sealing substrate includes a composite member, at least one conductive portion, and an insulation sheet. The composite member includes a resin base layer and a plurality of carbon fibers. The at least one conductive portion extends over inner and outer sides of the composite member and penetrates the composite member. The at least one conductive portion includes a double-layered structure having a metal foil layer and a plating layer.

Abstract: A device comprising: a first substrate (1); a second substrate; at least one optoelectronic component (4) containing at least one organic material is arranged on the first substrate; the first substrate (1) and the second substrate (2) being arranged relative to one another in such a way that the optoelectronic component (4) is arranged between the first substrate (1) and the second substrate; a bonding material (3) is arranged between the first substrate (1) and the second substrate (2), said bonding material enclosing the optoelectronic component (4) in a frame type fashion and mechanically connecting the first and second substrates (1, 2) to one another; and wherein the bonding material (3) was softened by an exothermic chemical process of a reactive material (7) for mechanically connecting the substrates (1, 2).

Abstract: A conductive layer serving as an auxiliary wiring is formed under a first electrode with a first insulating layer interposed therebetween, and the conductive layer and a second electrode are electrically connected to each other through an opening in the first insulating layer and the first electrode. A second insulating layer is formed over a sidewall of the opening so that the first electrode is not directly in contact with the second electrode in the opening. An EL layer is formed by evaporation in a state where a deposition target substrate is inclined to an evaporation source, so that the second insulating layer serves as an obstacle and a region where the EL layer is not formed by the evaporation and the conductive layer is exposed is formed in part of the opening in a self-aligned manner.

Abstract: By the invention it is proposed a method of preparing a serial connection of OLED-devices, comprising the steps of providing a carrier substrate; depositing a first electrode material layer on said carrier substrate; depositing a layer of an organic optoelectronic active material on said first electrode material layer; depositing a second electrode material layer on said organic optoelectronic active material layer; ablating at least the second electrode material layer and the organic optoelectronic active material layer at least in selected areas to build a trench forming separated OLED-devices on the carrier surface; electrically interconnecting neighboring OLED-devices by connecting the anode of a first OLED-device to the cathode of a neighboring second OLED-device, wherein in the steps of depositing the organic optoelectronic active material layer and the cathode layer, the carrier substrate surface is covered over its entire functional area with said layers, and wherein the electrical interconnection of

Abstract: An organic light emitting diode display capable of reducing the shortening of image stacking lifetime caused by the residue of the barrier ribs produced during the forming of the barrier ribs is provided. The display includes: a substrate; a first pixel electrode formed on the substrate; barrier ribs formed on the substrate, and having an opening exposing the first pixel electrode; a second pixel electrode formed on the first pixel electrode; an organic light emitting member formed on the second pixel electrode; an organic light emitting member formed on the second pixel electrode; a common electrode formed on the organic light emitting member; and a thin film encapsulation member covering the common electrode. The width of the second pixel electrode is greater than the exposure width of the first pixel electrode exposed through the opening of the barrier ribs.

Abstract: In a device having an anode electrode, an organic EL layer, and a cathode electrode formed on a substrate in this order from a main surface side of the substrate, and an encapsulating film provided on the substrate so as to cover the emission layer, the encapsulating film includes a laminated film obtained by alternately laminating buffer films serving as flattening films and barrier films having high moisture barrier property, and the flattening film and the barrier film include a silicon oxynitride film. In the manufacturing process of the device, the buffer film including silicon oxynitride is formed by an optical CVD method using vacuum ultraviolet light, and in this process, radical irradiation by remote plasma is performed during the irradiation of the vacuum ultraviolet light.

Abstract: Provided is a bottom emission type organic EL panel capable of preventing or delaying loss of light emission from an end portion of the light emission area and reduction of the light emission area in an organic EL element. This organic electro luminescence panel includes an organic electro luminescence element having at least one organic layer between an anode and a cathode arranged on a substrate. This panel has a main light emission area emitting light with a high luminance and a non-light emission area or a low light emission area emitting light with a lower luminance than the main light emission area, arranged outside the end portion of the main light emission area. By limiting the main light emission area to a smaller size than the cathode forming area, the end portion of the cathode forming area is arranged outside the end portion of the main light emission area.

Abstract: Disclosed is an organic electroluminescent device (organic EL device) which is improved in luminous efficiency, sufficiently secures driving stability, and has a simple configuration. The organic EL device of this invention comprises a light-emitting layer between an anode and a cathode piled one upon another on a substrate wherein the light-emitting layer contains a phosphorescent dopant and a 1,9-substituted carbazole compound as a host material. An example of the 1,9-substituted carbazole compound is represented by the following general formula (1). In formula (1), Ar is an aromatic hydrocarbon group or aromatic heterocyclic group; L is an aromatic hydrocarbon group or aromatic heterocyclic group; each of R1 to R3 is a hydrogen atom, an alkyl group, a cycloalkyl group, an aromatic hydrocarbon group, or an aromatic heterocyclic group; n is an integer of 1 to 3.