Abstract: The invention provides an OLED device including an anode, a cathode and a yellow light-emitting layer located therebetween, the light-emitting layer comprising a 9,10-diarylanthracene host; a yellow light-emitting 5,6,11,12-tetraphenyltetracene derivative where as least 1 of the phenyl groups is further substituted and a non-light-emitting diarylamine substituted 9,10-diarylsubstituted anthracene stabuilizer. Devices of the invention provide improvement in features such as stability and efficiency while maintaining excellent color.

Abstract: The present invention provides an organic electroluminescent device exhibiting a long life, a high luminance, and a high efficiency. An organic electroluminescent device comprising on a substrate an anode, a hole transport layer, an organic light-emitting layer, and a cathode, wherein the organic light-emitting layer contains an organic compound having a pyridine ring, a pyrazine ring, or a triazine ring as a partial structure and the hole transport layer contains a monoamine compound represented by the following formula (I): wherein R1 to R9 represent a hydrogen atom, an aryl group, or an alkyl group; R1 to R9 may be the same or different from each other; and R1 to R9 may further have an aryl group or an alkyl group as a substituent in the case where R1 to R9 are an aryl group or an alkyl group.

Abstract: An organic compound contains 8H-naphth[2,1-b]carbazole as the basic skeleton thereof. An organic light-emitting element includes an organic compound layer containing the organic compound. A display device and an image display unit each include the organic light-emitting element. The organic light-emitting element is also used in a lighting device and an image forming apparatus.

Abstract: Disclosed is an organic electroluminescent device (organic EL device) that is improved in luminous efficiency, fully secured of driving stability, and of simple structure. The organic EL device comprises a light-emitting layer between an anode and a cathode piled one upon another on a substrate and the light-emitting layer comprises a phosphorescent dopant and a compound containing carbazolyl groups at both ends represented by the following formula (1) as a host material. In formula (1), X is independently CH optionally containing a substituent or N and L is a direct bond, an ethylene group, or an acetylene group.

Abstract: The present invention relates to novel carbazole derivatives and an organic light-emitting diode device using the same. These carbazole derivatives can simultaneously or singly be used as a hole transporting layer, a host or guest of an emitting layer or an electron transporting layer of an organic light-emitting diode device.

Abstract: Novel aromatic amine compounds are provided. Light-emitting elements having high emission efficiency and high reliability are provided. Further, light-emitting devices and electronic devices using the light-emitting devices are provided. Specifically, an aromatic amine compound represented by the general formula (1), and light-emitting elements, light-emitting devices and electronic devices that are formed using the aromatic amine compound represented by the general formula (1) are provided. By using the aromatic amine compound represented by the general formula (1) for light-emitting elements, light-emitting devices and electronic devices, the light-emitting elements, light-emitting devices and electronic devices can have high emission efficiency.

Abstract: The present invention provides an organic light emitting diode comprising a first electrode, a second electrode and an organic material layer of one or more layers disposed between the first electrode and the second electrode, in which the organic material layer comprises a light emitting layer, an organic material layer comprising the compound represented by Formula 1 is comprised between the first electrode and the light emitting layer, and the light emitting layer comprises a host comprising the compound represented by Formula 1 and a dopant.

Abstract: An amine derivative represented by the following general formula (1) and exhibiting a temperature difference of 30° C. or more as defined by the difference of [decomposition temperature (° C.) minus sublimation temperature (° C.)]: wherein R1 and R2 independently represent a substituted or unsubstituted C6-40 aryl or C5-40 heteroaryl group; and R3 and R4 independently represent a hydrogen atom, a straight-chain, branched or cyclic C1-18 alkyl or C1-18 alkoxy group, or a substituted or unsubstituted C6-40 aryl or C5-40 heteroaryl group, provided that R3 and R4 may form together a cyclic hydrocarbon group. The amine derivative is useful as an organic electroluminescent material.

Abstract: The present invention describes triphenylene derivatives, 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 same.

Abstract: A heterocyclic compound represented by Formula 1A and an organic light-emitting device including the heterocyclic compound: at least one of R1 to R13 is a group represented by Formula 1B below: wherein R1 to R15, Ar1, Ar2, A, B, a, and b are defined as in the specification. The organic light-emitting device may include an organic layer containing the heterocyclic compound, and thus may have a low driving voltage, a high-emission efficiency, and long lifespan characteristics.

Abstract: A compound for an organic photoelectric device, the compound being represented by the following Chemical Formula (“CF”) 1:

Abstract: Fluorescent phenyl xanthene dyes are described that comprise any fluorescein, rhodamine or rhodol comprising a particular C9 phenyl ring. One or both of the ortho groups on the lower C9 phenyl ring is ortho substituted with a group selected from alkyl, heteroalkyl, alkoxy, halo, haloalkyl, amino, mercapto, alkylthio, cyano, isocyano, cyanato, mercaptocyanato, nitroso, nitro, azido, sulfeno, sulfinyl, and sulfino. In one embodiment, halo and/or hydroxy groups are used. Optimal dyes contain a lower C9 phenyl ring in which both ortho groups are the same and the lower ring exhibits some form a symmetry relative to an imaginary axis running from the phenyl rings point of attachment to the remainder of the xanthene dye through a point para to the point of attachment. The phenyl xanthene dyes may be activated. Furthermore, the phenyl xanthene dyes may be conjugated to one or more substances including other dyes.

Abstract: A heterocyclic compound represented by Formula 1 below and an organic light-emitting device including the heterocyclic compound: wherein R1 to R12 are defined as in the specification.

Abstract: It is an object of the present invention to provide a light emitting element, which is resistant to repetition of an oxidation reaction. It is another object of the invention to provide a light emitting element, which is resistant to repetition of a reduction reaction. An anthracene derivative is represented by a general formula (1). In the general formula (1), R1 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, R2 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms and an aryl group having 6 to 12 carbon atoms, R3 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 12 carbon atoms, Ph1 represents a phenyl group, and X1 represents an arylene group having 6 to 15 carbon atoms.

Abstract: The present invention provides a novel compound that is capable of largely improving a life time, efficiency, electrochemical stability, and thermal stability of an organic electronic device, and an organic electronic device that comprises an organic material layer comprising the compound.

Abstract: Methods and devices related to the treatment of diseases using phototherapy are described. Some embodiments provide an organic light-emitting diode device, such as a light-emitting device for phototherapy, comprising a compound of Formula 1. Methods of treating disease diseases with phototherapy are also described.

Abstract: The present disclosure relates to a process for the synthesis of a conducting polymer comprising a benzothiadiazole acceptor and indeno-fluorene donor of formula [IV].

Abstract: A method of manufacturing an organic EL element, which may be a top-emitting or a transparent organic EL element, provides an organic EL element having a low driving voltage and a high efficiency. The organic EL element includes a substrate; an anode; an organic EL layer which includes at least an emissive layer, an electron transport layer and a damage-mitigating electron injection layer; and a transparent cathode composed of a transparent conductive oxide material, the damage-mitigating electron injection layer is in contact with the transparent cathode, and the damage-mitigating electron injection layer includes a crystalline oligothiophene compound.

Abstract: The present invention describes carbazole derivatives formula (1), where the following applies to the symbols used: Y is on each occurrence, identically or differently, CR or N; X is selected from C(R1)2, O, S, PR1, P(?O)R1 or BR1; characterised in that at least one group R is present which stands, identically or differently on each occurrence, for a group of the following formula (2), and/or in that at least one group R1 is present which stands for a group of the following formula (3) or (4), 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 same.

Abstract: Disclosed is an organic electroluminescent device (organic EL device) that is improved in the luminous efficiency, fully secured of the driving stability, and of a simple structure and also disclosed is a compound for organic EL device useful for the said device. The compound for organic EL device is, for example, an indolocarbazole derivative represented by the following general formula (3). The organic EL device comprises a light-emitting layer disposed between an anode and a cathode piled one upon another on a substrate and the said light-emitting layer comprises a phosphorescent dopant and the aforementioned indolocarbazole derivative as a host material. In general formula (3), L is an aromatic heterocyclic group of a fused-ring structure with a valence of (n+1), Ar1 to Ar3 each is an alkyl group, an aralkyl group, or a substituted or unsubstituted aromatic hydrocarbon or aromatic heterocyclic group, and n is an integer of 0-5.

Abstract: An organic EL device material includes at least a unit including 3,5-biscarbazolylphenyl group, a unit including 4-carbazolylphenyl group, and a compound including a unit including a nitrogen-containing aromatic heterocyclic ring bonding the unit including 3,5-biscarbazolylphenyl group and the unit including 4-carbazolylphenyl group.

Abstract: There are provided compounds comprising optionally substituted (FORMULA I) fused with one or two optionally substituted (FORMULA II), wherein A and E each independently represent —CH2—, —NH—, —O—, —S—, or —C(?O)— and B represents a bond, —CH2—, —NH—, —O—, —S—, or —C(?O)—, said compound having directly or indirectly attached thereto at least one acyl and/or oxime ester group. Such compounds are useful inter alias as photoinitiators.

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

Abstract: A problem of the invention is to provide an organic EL device having a high efficiency, a low driving voltage and a long life, by combining various materials for organic EL device, which are excellent in an injection or transportation performance of holes or electrons, and in stability and durability in a thin film, so as to enable the respective materials to effectively reveal their characteristics. The invention relates to an organic electroluminescent device including at least an anode electrode, a hole-injecting layer, a hole-transporting layer, an emitting layer, an electron-transporting layer and a cathode electrode in this order, in which the hole-injecting layer contains an arylamine compound having, in its molecule, a structure in which three or more triphenylamine structures are connected through a single bond or a hetero atom-free divalent group; and the hole-transporting layer contains an arylamine compound having two triphenylamine structures in its molecule.

Abstract: Disclosed herein are compounds represented by Formula 1, wherein R1, Ar1, X, Ar2, Ar3, and Het are described herein. Compositions and light-emitting devices related thereto are also disclosed.

Abstract: Compounds of the general structural formula (I) and (II) and use of the compounds and salts and hydrates thereof, as therapeutic agents are disclosed. Treatable diseases and conditions include cancers, inflammatory diseases and conditions, and immunodeficiency diseases.

Abstract: A nitrogen-containing aromatic heterocyclic derivative in which a nitrogen atom of an indenocarbazole skeleton optionally having a hetero atom or an indenoindole skeleton optionally having a hetero atom is bonded to a dibenzofuran or a dibenzothiophene directly or indirectly. The derivative realizes an organic EL device with a high emission efficiency and a long lifetime.

Abstract: Novel aryl silicon and aryl germanium host materials are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED.

Abstract: The present invention relates to a compound having a substituted anthracene ring structure and a pyridoindole ring structure, which is represented by the following general formula (1) or the following general formula (2); and an organic electroluminescent device having a pair of electrodes and at least one organic layer interposed therebetween, in which the compound having a substituted anthracene ring structure and a pyridoindole ring structure, which is represented by the following general formula (1) or the following general formula (2), is used as a constituent material of the aforementioned at least one organic layer.

Abstract: An indolocarbazole derivative and an organic electroluminescence device, the indolocarbazole derivative having a structure represented by A-L-B, wherein A and B are each independently an indolocarbazolyl group represented by one of Formulae (1) to (6), below:

Abstract: Organic compounds and organic electroluminescent devices employing the same are provided.

Abstract: A dendrimer compound characterized by comprising a core represented by the following formula (1-1), (1-2), (1-3), or (1-4) and at least one kind of dendritic structure selected among dendritic structures represented by the following formulae (3) and (4).

Abstract: A compound having an indolocarbazole ring structure is represented by the following general formula (1), and is used as a material for forming a highly efficient and highly durable organic electroluminescent device. The compound features excellent hole injection/transport capability, has electron blocking power and is highly stable in the form of a thin film. wherein, A is a divalent aromatic hydrocarbon group or aromatic heterocyclic group, Ar1 to Ar4 are monovalent aromatic hydrocarbon groups or aromatic heterocyclic groups, and R1 to R9 are hydrogen atoms, deuterium atoms, fluorine atoms, chlorine atoms, cyano groups, nitro groups, alkyl groups, cycloalkyl groups, alkenyl groups, alkyloxy groups, cycloalkyloxy groups, aromatic hydrocarbon groups, aromatic heterocyclic groups or aryloxy groups.

Abstract: The present invention is directed to novel multicyclic molecules that mediate enzymatic activity. In particular, the compounds may be effective in the treatment of diseases or disease states related to the activity of PARP, VEGFR2, and MLK3 enzymes, including, for example, neurodegenerative diseases, inflammation, ischemia, and cancer.

Abstract: The present invention describes copolymers containing indenocarbazole derivatives having electron- and hole-transporting properties, in particular for use in the interlayer, emission and/or charge-transport layer of electroluminescent devices, and the monomers which are necessary for the preparation of the copolymers. The invention furthermore relates to a process for the preparation of the copolymers according to the invention, and to electronic devices comprising same.

Abstract: A heterocyclic compound represented by Formula 1 below, and an organic light-emitting device including the heterocyclic compound:

Abstract: Disclosed is a long-life organic electroluminescent element which can be driven at low voltage. Also disclosed are a display and illuminator using the same. Specifically disclosed is an organic electroluminescent element comprising on a substrate, an anode, a cathode and an organic compound layer arranged between the anode and the cathode and including at least one light emission layer. This organic electroluminescent element is characterized in that the organic compound layer includes an electron transport material-containing layer which contains an electron transport material represented by Formula (a) and at least one substance selected from the group consisting of metals, salts of the metals and electron-donating compounds. Formula (a) Ar1-(Ar2)n [In the formula, Ar1 represents a group derived from an aromatic hydrocarbon ring or a group derived from an aromatic heterocycle; Ar2 represents a group derived from an aromatic heterocycle; and n represents an integer of 2 or more.

Abstract: The present invention relates to an organic light-emitting diode comprising an anode and a cathode Ka and a light-emitting layer E and if appropriate at least one further layer, where the light-emitting layer E and/or the at least one further layer comprises at least one compound selected from disilylcarbazoles, disilyldibenzofurans, disilyldibenzothiophenes, disilyldibenzophospholes, disilyldibenzothiophene S-oxides and disilyldibenzothiophene S,S-dioxides, to a light-emitting layer comprising at least one of the aforementioned compounds, to the use of the aforementioned compounds as matrix material, hole/exciton blocker material, electron/exciton blocker material, hole injection material, electron injection material, hole conductor material and/or electron conductor material, and to a device selected from the group consisting of stationary visual display units, mobile visual display units and illumination units comprising at least one inventive organic light-emitting diode.

Abstract: A material for electroluminescent devices which comprises a compound in which a heterocyclic group having nitrogen is bonded to carbazolyl group and an organic electroluminescent device having at least one organic thin film layer which is sandwiched between the cathode and the anode and contains the above material in at least one layer, are provided. The material can provide organic electroluminescent devices emitting bluish light with a high purity of color. The organic electroluminescence device uses the material.

Abstract: Disclosed are electroluminescent materials comprising a homopolymer based on recurring structural units of the formula (I) wherein R9, R9? R9?, R11, R13 R14, R11?, R13?, R14? independently are H or an organic substituent, where at least one of R9, R9? R9?, R11, R13 R14, R11?, R13?, R14? comprises a group R10 of the formula —(Sp)x10-[PG?]< wherein Sp is a divalent organic spacer, PG? is a group derived from a polymerizable group, and x10 is 0 or 1, with substituents and spacer as defined in claim 1. Further disclosed are some novel polymers of this class as well as monomers for their preparation. The homopolymers are advantageously used as a host material in devices further comprising a luminescent component, which is usually selected from phosphorescent metal complexes and fluorescent dopants.

Abstract: A substituted indolocarbazole comprising at least one optionally substituted thienyl.

Abstract: The present invention relates to novel materials which can be used in organic electronic devices, in particular electroluminescent devices, and are certain derivatives of fused aromatic systems.

Abstract: A heterocyclic compound represented by Formula 1 below and an organic light-emitting diode (OLED) including the same: wherein R1 through R12, Ar1, Ar2, A, B, a, and b are the same as defined above. An OLED including an organic layer including the heterocyclic compound has low driving voltage, high luminous efficiency, and a long lifetime.

Abstract: The invention relates to organic electroluminescent devices which comprise triazine derivatives as the electron transport material.

Abstract: An object is to provide a light-emitting element with high emission efficiency which includes a novel carbazole derivative that has a wide energy gap and can be used for a transport layer or a host material in a light-emitting element. A carbazole derivative in which the 4-position of dibenzothiophene or dibenzofuran is bonded to the 2- or 3-position of carbazole has been able to be provided by use of the carbazole derivative. Further, a light-emitting element having high emission efficiency has been able to be provided by use of the carbazole derivative.

Abstract: The present invention relates to a novel heterocyclic derivative and an organic light emitting device using the compound, and the heterocyclic derivative may largely improve a life span, efficiency, electrochemical stability and thermal stability of the organic light emitting device.

Abstract: A polymer comprising at least one type of repeat unit comprising at least one type of an optionally substituted indolocarbazole moiety and at least one divalent linkage.

Abstract: The disclosure provides fluorescence probe compounds of formula I, their preparation methods and applications. These compounds are useful in detecting mercury ions.

Abstract: Novel aryl silicon and aryl germanium host materials, and in particular host materials containing triphenylene and pyrene fragments, are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED.

Abstract: An organic electroluminescent element including at least an emission layer sandwiched between an anode and a cathode, wherein the emission layer comprises at least a compound represented by Formula (A),