Abstract: Described herein are devices and methods related to fabrication of organic electroluminescent devices and related components. In certain embodiments, devices and methods for fabricating OLED panels on substrates with non-uniform reflection or un-even surfaces require that the non-uniform features are arranged in a way such that they are not presented in the region where photolithography features are needed. In certain embodiments, where precision processing such as photolithography features are needed, the substrate is designed to be flat.

Abstract: An organic electroluminescent element comprising a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer which is arranged between the electrodes and which includes a light emitting layer, wherein the organic layer contains a compound represented by general formula (1) in at least one layer. The organic electroluminescent element has a high luminous efficiency, excellent blue color purity, and little chromaticity change due to drive deterioration. (In the formula, the two Xs either both represent an O atom or both represent an S atom, and R1-R10 each independently represents a hydrogen atom or a substituent group).

Abstract: The present invention relates to compounds of formula a process for their production and their use in electronic devices, especially electroluminescent devices. When used as host material for phosphorescent emitters in electroluminescent devices, the compounds of formula I may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices.

Abstract: Use of transition metal complexes of the formula (I) in organic light-emitting diodes where: M1 is a metal atom; carbene is a carbene ligand; L is a monoanionic or dianionic ligand; K is an uncharged monodentate or bidentate ligand selected from the group consisting of phosphines; CO; pyridines; nitriles and conjugated dienes which form a ? complex with M1; n is the number of carbene ligands and is at least 1; m is the number of ligands L, where m can be 0 or ?1; o is the number of ligands K, where o can be 0 or ?1; where the sum n+m+o is dependent on the oxidation state and coordination number of the metal atom and on the denticity of the ligands carbene, L and K and also on the charge on the ligands carbene and L, with the proviso that n is at least 1, and also an OLED comprising these transition metal complexes, a light-emitting layer comprising these transition metal complexes, OLEDs comprising this light-emitting layer, devices comprising an OLED according to the present invention, and specific tr

Abstract: An organic electroluminescent element that includes a light-emitting layer composed of a light-emitting composition containing at least one type of host material and at least one type of light-emitting material is provided. The host material is a fluorescent anthracene derivative, which fluoresces blue light under DC current with a current density of 25 mA/cm2. If ? (nm) is taken to be the shortest wavelength of all the wavelengths at which the intensity of PL emission of a film composed only of the aforementioned host material is one-half the maximum emission intensity, then the intensity of PL emission at the aforementioned wavelength ? of a film composed of the aforementioned light-emitting composition is no more than 1/10 the maximum emission intensity of PL emission of the film composed of the aforementioned light-emitting composition, and the PL emission of the film composed of the aforementioned light-emitting composition satisfies CIE y?0.08.

Abstract: This application relates in part to an organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and an organic layer(s) including a light emitting layer, in which the organic layer(s) contains a compound represented by the following formula (1), in which R1 to R8 are each hydrogen or a substituent, at least one of R1 to R4 and at least one of R5 to R8 are each a substituent represented by the formula (2); R9 to R12, Z1 to Z4, Ar1, Ar2, and L1 are as defined herein.

Abstract: Cyclometallated Ir complex comprising three N,N diaryl substituted carbene ligands, bearing substituents in the 2 position of the non-cyclometallated aryl ring; an organic electronic device, preferably an organic light-emitting diode (OLED), comprising at least one cyclometallated Ir complex as described above, a light-emitting layer comprising said cyclometallated Ir complex preferably as emitter material, preferably in combination with at least one host material, use of said cyclometallated Ir complex in an OLED and an apparatus selected from the group consisting of stationary visual display units, mobile visual display units, illumination units, units in items of clothing, units in handbags, units in accessories, units in furniture and units in wallpaper comprising said organic electronic device, preferably said OLED, or said light-emitting layer. The present invention further relates to a process for the preparation of said cyclometallated Ir complex.

Abstract: An organic electroluminescent element using a compound represented by the following general formula emits dark blue light and has a small change in the chromaticity during luminance modulation: wherein each of R1 to R8 represents a hydrogen atom or a substituent; A1 to A4 represent CR31 or N; L and X each independently represent any one of CR32R33, NR34, O, S, and SiR35R36; and each of R31 to R36 represents a hydrogen atom or a substituent.

Abstract: Provided is an organic electroluminescence device including a pair of electrodes composed of an anode and a cathode, a light emitting layer between the electrodes and an organic layer which is adjacent to the light emitting layer between the light emitting layer and the cathode, on a substrate, and the light emitting layer contains at least one compound having a carbazole structure and the organic layer adjacent to the light emitting layer contains at least one hydrocarbon compound having a specific structure.

Abstract: The present invention relates to metal-carbene complexes of the general formula (I), where variable M is Ir or Pt and that are characterized by variable R being a group of formula (a). The complexes are used in organic electronic devices, especially OLEDs (Organic Light-Emitting Diodes), illuminating elements, stationary visual display units and in material layers as emitter, charge transport material and/or charge or exiton blocker.

Abstract: An organic electroluminescent element having a small reduction rate in the luminance immediately after the start of light emission is provided. The organic electroluminescent element includes a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, a light emitting layer disposed between the electrodes, and at least one organic layer disposed between the light emitting layer and the anode, in which at least one kind of a specific compound including a fluorene structure is contained in at least one organic layer between the light emitting layer and the anode, and at least one kind of a specific compound including a carbazole structure or a fluorene structure is contained as a light emitting material in the light emitting layer.

Abstract: An organic electroluminescent element using a compound represented by the following general formula (I) emits dark blue light and has a high effect of inhibition of voltage during high-luminance driving: wherein R1 to R6; E1 and E2; X1 and X2; and A1 to A8 are as defined herein.

Abstract: An organic electroluminescence device including an anode, a cathode, an organic layer disposed between the anode and the cathode, the organic layer containing a hole injection layer, a hole transport layer and an emission layer containing a host material, wherein the hole injection layer, the hole transport layer and the emission layer each contain a phosphorescent light-emitting material, wherein the hole injection layer contains the phosphorescent light-emitting material in an amount of 10% by mass or more but less than 50% by mass, and wherein a concentration of the phosphorescent light-emitting material contained in the hole transport layer is lower than that in the hole injection layer, and a concentration of the phosphorescent light-emitting material contained in the emission layer is lower than that in the hole injection layer and higher than that in the hole transport layer.

Abstract: An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes. At least one kind of a compound represented by the following general formula (I) is contained in any layer of the at least one organic layer. The organic electroluminescent element has good luminous efficiency, driving voltage, and driving durability, and has low dependence of such performance on a deposition rate. Wherein: L1 to L4, n1 to n4, A1, A5, A6, A10 and, R are as defined in the application.

Abstract: An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which at least one kind of compound represented by the following general formula (I) is contained in any layer of the at least one organic layer. The organic electroluminescent element has good luminous efficiency, driving voltage, and driving durability, and has low dependence of such performance on a deposition rate: wherein X, Q, R1 to R8 are as defined in the application.

Abstract: A compound of the general formula a process for the production of the compound and its use in electronic devices, especially electroluminescent devices. Improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices are provided when the compound of formula I is used as host material for phosphorescent emitters in electroluminescent devices.

Abstract: [It is an object] to provide an organic electroluminescent element having a transparent electrode, with which there is no need to produce a separate light extraction layer, [which can be produced by] a simple film formation process, and which is advantageous in terms of cost. [This is] an organic electroluminescent element in which a substrate, a first transparent electrode that is adjacent to this substrate, an organic layer including at least one organic light-emitting layer, a second transparent electrode, a low refractive-index layer with a refractive index of 1.3 or less, and a reflector layer are formed in this order, with this organic electroluminescent element being such that the aforementioned first transparent electrode contains at least one type of transparent particle with a primary particle size of 0.5 ?m or more.

Abstract: An organic electroluminescence element that uses a compound expressed by the following general formula has low inter-molecular interaction and high orientation during vapor deposition, and by using compounds that are resistant to aggregation, luminous efficiency is high, and there is little change in chromaticity accompanying drive deterioration (either V1 or W1 and either V2 or W2 form rings, the rings formed by V1 and V2 are six-membered rings, and the rings formed by W1 and W2 are five-membered rings; A2 to A4 and A6 to A8 represent CRZ or N, and RZ represents a hydrogen atom or a substituent; and R2, R3, R7, and R8 represent a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, a fluorine atom, a hydrogen atom [sic], or a deuterium atom.).

Abstract: A material for organic electroluminescence element, including: a phosphorescent compound; and a discotic liquid-crystalline host compound, wherein the phosphorescent compound has an aspect ratio of molecule core diameter to molecule core thickness (molecule core diameter/molecule core thickness) of at least 3, and wherein a size ratio of the molecular radius of the phosphorescent compound to the molecular radius of the discotic liquid-crystalline host compound (molecular radius of the phosphorescent compound/molecular radius of the discotic liquid-crystalline host compound) is 0.8 to 1.2.

Abstract: The present invention relates to dinuclear metal-carbene complexes comprising a central atom selected from platinum and palladium, where both metal atoms are cyclometalated to the same aromatic group, to OLEDs (Organic Light-Emitting Diodes) which comprise such complexes, to a device selected from the group consisting of illuminating elements, stationary visual display units and mobile visual display units comprising such an OLED, to the use of such a metal-carbene complex in OLEDs, for example as emitter, matrix material, charge transport material and/or charge or exciton blocker.