Abstract: A composition for an organic EL element which can form a high precision pattern in a simple manner and in a short time and a method of manufacturing the organic EL element are disclosed. By using the composition, optimum film design and luminescence characteristic can be easily obtained, and an adjustment of a luminescence efficiency can also be easily performed. The composition for an organic EL element comprises a precursor of a conjugated organic polymer compound for forming at least one luminescent layer (106), (107), (108) having a certain color and at least one kind of fluorescent dye for changing the luminescence characteristic of the luminescent layer. The luminescent layer is made from a pattern formed by an ink-jet method. As for the precursor, a precursor of PPV, PPV derivative or the like is preferably used.

Abstract: A hole transporting polymer having a specific Si-containing repeating unit represented by a formula (1) and specific molecular weight, an excellent hole transporting property, and superior durability and film-forming properties, and the organic EL device, using the bole transporting polymer having excellent light emitting characteristics are disclosed.

Abstract: Phosphorescent organometallic complexes comprising phenylquinolinato ligands are provided. High efficiency organic light emitting devices comprising these compounds are also described.

Abstract: A is a novel methine compound, for example, which is represented by the following formula (I): wherein R1, R2, R3, R4 and R5 each represents a hydrogen atom or a substituent; X represents an oxygen atom, a sulfur atom, or N—R6; Z represents —NR7R8, or —OG; R6, R7 and R8 each represents a hydrogen atom or a substituent; G represents a hydrogen atom, a cation or a substituent; L1, L2 and L3 each represents a substituted or unsubstituted methine group; n represents 1 or 2; and W represents an electron attractive group. Also, a material for organic luminescence element and organic luminescence element using the same are disclosed.

Abstract: A fluorene-based polymer of the following Formula (I) and electroluminescent devices using the same. wherein, R1, R2, R3 and R4 are same or different and represent hydrogen, aliphatic or alicyclic alkyl or alkoxy groups containing 1 to 22 carbon atoms, aryl or aryloxy group containing 6 to 18 carbon atoms, cyano, cyanoethyl, or an alkyl or aryl derivative of silicon, tin or germanium; X represents diacetylene, diethynyl aryl, divinylaryl group or a single bond; and n is an integer equal to or greater than 1.

Abstract: A light emitting device is disclosed having a light emitting layer containing a porphyrin derivative compound each pyrrole group of which is characterized by having a straight-chain or branched side-chain alkyl group having 5 to 20 carbon atoms, and the central metal of which is Cr, Ni, Cu, Co, Ru, Rh, Pd, Ir, Pt or Au. The compound is light-emissive and especially has phosphorescent light emission properties and liquid crystal properties. Also disclosed is a display unit using the light emitting device.

Abstract: A methine compound which is represented by the following formula (VI): wherein R1, R2, R3, R4, R5, R6, R7, R8, R9 and R each represents a hydrogen atom or a substituent; A represents a heterocyclic ring containing an aromatic ring; X represents an oxygen atom, a sulfur atom, or N—R10, wherein R10 represents a hydrogen atom or a substituent; L1 and L2 each represents a substituted or unsubstituted methine group; and n represent 1 or 2. Also, a material for organic luminescence element and organic luminescent element using the same are disclosed.

Abstract: A luminescent device having a pair of electrodes and a luminescent layer disposed between the electrodes.

Abstract: Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L2MX, wherein L and X are distinct bidentate ligands. Compounds of this formula can be synthesized more facilely than in previous approaches and synthetic options allow insertion of fluorescent molecules into a phosphorescent complex, ligands to fine tune the color of emission, and ligands to trap carriers.

Abstract: An organic luminescence device is constituted by a pair of an anode and a cathode, and at least one organic luminescence function layer disposed between the anode and the cathode. At least one organic luminescence function layer described above includes a layer of a fused polynuclear compound represented by the following formula (I): wherein R1, R2, R3 and R4 independently denote hydrogen atom, an alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted amino group or cyano group; and Ar1 and Ar2 independently denote a substituted or unsubstituted fused polynuclear aromatic group or a substituted or unsubstituted fused polynuclear heterocyclic group.

Abstract: Processes for coating sewing thread using a radiation curable composition and the resultant coated sewing thread. Sewing thread is coated with a radiation curable composition, which exhibits a self sustaining cure after exposure to radiation. The composition is applied using contact coating techniques to coat and impregnate the thread with resin. The coated thread is then exposed to radiation to cure the coating. Because the cure is self sustaining, the composition more fully and completely reacts to form a coating with increased durability and reduced susceptibility to stripping or flaking during use in demanding industrial applications.

Abstract: According to the conventional technique, light discharge efficiency was improved by orientation in the direction vertical to the device plane. However, a big reflection loss was caused by increased anisotropy in the refractive index of the light emitting layer, and the discharge efficiency could not be improved as expected. Further, characteristics related to the angle of field were deteriorated by excessive directivity. To avoid problem, the molecular orientation is adjusted according to a design guideline to ensure that the transition dipole moment of the light emitting material used has the optimum direction, and an intermediate layer is provided to adjust the refractive index and to obtain the optimum directivity.

Abstract: A metal coordination compound having a basic structure represented by formula: MLmL′n (1), wherein M is a metal atom of Ir, Pt, Rh or Pd; L and L′ are mutually different bidentate ligands; m is 1, 2 or 3; wherein at least one bidentate ligand has a partial structure formed by condensation via an alkylene group having 2-10 carbon atoms, is provided. In an electroluminescence device composed of one or a plurality of organic films disposed between a cathode and an anode, at least one layer is a luminescence layer which is formed by incorporating luminescence molecules constituting the metal coordination compound having a structure of the formula (1) described above as a guest material in a host material thereby to provide an electroluminescence device producing luminescence at high efficiency and stably keeping a high luminance for a long period.

Abstract: A light-emitting material comprises a compound having a partial structure represented by the following formula (1) or tautomer thereof:

Abstract: A specific bis(diarylamino)arylene compound expressed in the following general formula [1.1] is used as a constituent material of an organic EL device. By this, luminescent brilliance and EL property are improved, and further, reduction in luminescent property is suppressed, and durability is improved. (wherein, Ar1 represents a substituted or unsubstituted arylene group having 5 to 42 carbon atoms: at least one of Ar2 to Ar3 independently represents a group expressed in the following general formula [1.2]; and the remaining group(s) of Ar2 to Ar5 independently represents an aryl group having 6 to 20 carbon atoms, and at least one of Ar2 to Ar5 has at least one hydrocarbon group which may include oxygen atom(s).) (wherein, each of R1 to R11 independently represents a hydrogen atom or a substituent.

Abstract: A luminescence device that has an organic compound layer disposed between a pair of electrodes. This organic compound layer contains a metal coordination compound represented by the following formula (1) wherein M is Ir, Rh or Pd; n is 2 or 3; CyN is a substituted or unsubstituted cyclic group containing a nitrogen atom connected to M and capable of containing another nitrogen atom and/or sulfur atom; and CyC is a substituted or unsubstituted cyclic group containing a carbon atom connected to M and capable of containing a nitrogen atom and/or a sulfur atom.

Abstract: A light-emitting device comprising: a pair of electrodes formed on a substrate; and organic compound layers provided in between the electrodes, wherein the organic compound layers comprises a light-emitting layer comprising a hole-transporting material and a phosphorescent compound and an electron-transporting layer comprising an electron-transporting material, and an ionization potential of the electron-transporting material is 5.9 eV or more or wherein the organic compound layers comprises a hole-transporting layer comprising a hole-transporting material, a light-emitting layer comprising a phosphorescent compound and an electron-transporting layer comprising an electron-transporting material, and an ionization potential of the electron-transporting material is 5.9 eV or more.

Abstract: A luminescence device comprising a pair of electrodes and an organic compound layer disposed therebetween. The layer contains a metal coordination compound represented by the following formula (1): wherein M is Ir, Rh or Pd; n is 2 or 3; and X1 to X8 is, independently, a hydrogen atom or a substituent selected from the group consisting of a halogen atom; a nitro group; a trifluoromethyl group; a trialkylsilyl group having three linear or branched alkyl groups each independently having 1-8 carbon atoms; and a linear or branched alkyl group having 2-20 carbon atoms capable of including one or at least two non-neighboring methylene groups which can be replaced with —O—, —S—, —C(O)—, —C(O)—O—, —O—C(O)—, —CH═CH— or —C≡C— and capable of including hydrogen atom which can be replaced with fluorine atom.

Abstract: An indole-based compound represented by Formula (1) disclosed herein is useful in forming a light emitting material for an organic electroluminescent device. The organic electroluminescent device has a multi-layered structure comprising a cathode, an anode and at least one organic layer, wherein the at least one organic layer comprises the indole-based compound. The indole-based compound contains two light-emitting units, each having an indole-based structure, linked with a connecting unit, which is an arylamine. The color of the light emitted by the light emitting material can be adjusted by changing the connecting unit.

Abstract: A light-emitting device comprising a pair of electrodes, and organic compound layers comprising a light-emitting layer provided in between the electrodes, wherein at least one of the organic compound layers comprises a compound having a transition metal atom-phosphorus atom bond.