Abstract: An organic light-emitting device with improved efficiency and improved lifetime includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer.

Abstract: An organic electroluminescent material is shown in General Formula (1), wherein one of X1, X2, and X3 is an independent nitrogen atom, and R1 to R14 are each independently selected from the group consisting of a hydrogen atom, a fluorine atom, a cyano group, an alkyl group, a cycloalkyl group, an alkoxy group, a thioalkyl group, a silyl group, and an alkenyl group.

Abstract: Provided is an organic light-emitting element having high light-emitting efficiency and a long element lifetime. Specifically, provided is an organic light-emitting element, including: an anode; a cathode; and an organic compound layer placed between the anode and the cathode, in which: the organic compound layer includes an emission layer; the emission layer includes at least a host and a guest; the guest is an iridium complex of a specific structure; the host is a heterocycle-containing compound; and a content of the host is 50 wt % or more with reference to a total amount of constituent materials for the emission layer.

Abstract: An amine-based compound and an organic light-emitting diode including the amine-based compound.

Abstract: The present invention relates to certain fluorenes, to the use of the compounds in an electronic device, and to an electronic device comprising at least one of these compounds. The present invention furthermore relates to a process for the preparation of the compounds and to a formulation and composition comprising one or more of the compounds.

Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the organic layer further includes: i) a hole transport region between the first electrode and the emission layer, the hole transport region including at least one selected from a hole transport layer, a hole injection layer, and a buffer layer, and ii) an electron transport region between the emission layer and the second electrode, the electron transport region including an electron transport layer and at least one selected from a hole blocking layer and an electron injection layer; and wherein the electron transport region includes a compound represented by Formula 1 or a compound represented by Formula 2:

Abstract: A co-polymer comprising a repeat unit of formula (I): wherein Ar1, Ar2 and Ar3 each independently represent an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents, the copolymer further comprising a conjugation-breaking repeat unit that does not provide any conjugation path between repeat units adjacent to the conjugation-breaking repeat unit. The copolymer may be used as a host material of a phosphorescent material in a light-emitting layer of an organic light-emitting device.

Abstract: The present invention relates to electron-deficient heteroaromatic compounds which are substituted by dibenzofuran or dibenzothiophene derivatives and by carbazoles or amines, in particular for use as triplet matrix materials in organic electroluminescent devices. The invention furthermore relates to a process for the preparation of the compounds according to the invention and to electronic devices comprising these compounds.

Abstract: A material for an organic electroluminescence device is represented by the following Formula 1, where X1 to X7, E, L, Ar1 and Ar2 are as defined in the specification.

Abstract: A compound is represented by a formula (1) below. In the formula (1), X1 to X8 each independently represent a carbon atom to be bonded to a group represented by the following formula (20), CRX or a nitrogen atom. At least one of X1 to X8 is a carbon atom to be bonded to the group represented by the following formula (2). RX is each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, or the like.

Abstract: A blue phosphorescence compound and an organic light emitting diode using the same are disclosed. The blue phosphorescence compound is represented by Chemical Formula 1 below: wherein ‘A’ and ‘B’ are symmetrically or asymmetrically substituted at positions of Nos. 2 and 7 or Nos. 3 and 6 of dibenzofuran core and are independently formed of an aromatic cyclic compound or a heterocyclic compound.

Abstract: A condensed-cyclic compound is represented by Formula 1, and an organic light-emitting diode includes the condensed-cyclic compound. The organic light-emitting diode includes a first electrode, a second electrode facing the first electrode, and an organic layer. The organic layer includes an emission layer and the condensed-cyclic compound. The condensed-cyclic compound can be included in the emission layer as a host, and the emission layer may further include a dopant.

Abstract: An aromatic heterocyclic derivative is represented by a formula (1) below. In the formula (1), X1 to X3 each are a nitrogen atom or CR1, with a proviso that at least one of X1 to X3 is a nitrogen atom. A is represented by a formula (2) and B is represented by a formula (4) below.

Abstract: An organic compound is represented by Formula 1. where X1, X2, L, A1, A2, R1, R2, R3, R4, and Het are as defined in the specification.

Abstract: An amine derivative represented by compound (1) of following Formula 1:

Abstract: In a novel compound, and a light emitting diode and an electronic apparatus including the same, the novel compound is represented by the following Chemical Formula 1.

Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescence device which includes the indole-based compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and lifespan.

Abstract: The present application relates to a compound of a formula (I) which contains a spirobifluorene basic structure condensed onto a benzofuran unit. The application furthermore relates to a process for the preparation of the compound of the formula (I), and to the use of the compound of the formula (I) in an electronic device.

Abstract: According to an embodiment of the present invention, an organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an emission layer between the first electrode and the second electrode. The organic light-emitting device includes a hole transport zone between the first electrode and the emission layer and includes an auxiliary layer, wherein the auxiliary layer includes at least one auxiliary material represented by Formula 1 below, and wherein the emission layer includes at least one light-emitting material represented by Formula 2 below.

Abstract: The present invention discloses a phenanthroline-based compound and an organic EL device employing the compound as phosphorescent light emitting host material of a light emitting layer and/or electron transporting layer material and/or hole blocking layer material and/or a thermally activated delayed fluorescence (TADF) material of a light emitting layer which can display good performance.