Konica Minolta, Inc.

Konica-Minolta Holdings, Inc.

Motoaki Sugino

Hiroshi Kita

Shinya Otsu

Shuichi Sugita

Eisaku Katoh

Rie Katakura

Rie Fujisawa

Takamune Hattori

Satomi Kawabe

An organic electroluminescence element including an anode, a plurality of organic functional layers including a light-emitting layer, and a cathode in that order wherein the organic functional layer containing a compound having a structure represented by the following general formula (1) is arranged between the light-emitting layer and the cathode, wherein X, Xto X, R, and Lare as defined in the specification.

Organic electroluminescence element and material for organic electroluminescence

A method for synthesizing an organic metal complex having a substituent capable of coordinating to a central metal ion includes replacing substituents RX and RX' in an organic metal complex having a structure represented by general formula (2) with substituents RB and RB&#x2032; in an organic metal complex having a structure represented by general formula (1), respectively: 

Method for synthesizing organic metal complex and organic electroluminescent element using compound synthesized by said synthesis method

An object of the present invention is to provide an organic EL element which has a shorter maximum luminescent wavelength, a long luminous lifespan, a low driving voltage, a small time-dependent change in driving voltage, and a small change in external extraction quantum efficiency even when being used at a high temperature. In addition, an object of the present invention is to provide a lighting device and a display device including the organic EL element. The organic EL element of the present invention is an organic EL element including: at least one luminous layer sandwiched between a positive electrode and a negative electrode, wherein the luminous layer contains at least one kind of phosphorescent organometallic complex having a structure represented by the following Formula (1): 

Organic electroluminescent element, lighting device, and display device

An isomer-mixture metal complex composition that includes a plurality of atropisomers is described. This isomer-mixture metal complex composition is a metal complex composition which is a mixture of isomers each comprising a metal atom and a plurality of ligands, and is characterized by containing a plurality of atropisomers because at least one of the ligands has an aromatic ring as a substituent and the free rotation of the axis of the bonding between the aromatic ring and the ligand is inhibited by the formation of a complex of the metal atom with other ligand(s). An organic EL element using the isomer-mixture metal complex composition as a material for organic EL element is also described. Further, an illuminator and a display device which are obtained using the organic EL element are described.

Isomer-mixture metal complex composition, organic electroluminescent element, illuminator, and display device

Disclosed herein are an iridium complex having improved luminous efficiency and emission lifetime, a method for producing the same, an organic electroluminescent element using the iridium complex, and a display device and a lighting device that include the organic electroluminescent element. The iridium complex is contained in at least one organic layer sandwiched between an anode and a cathode of an organic electroluminescent element, and has a coefficient of external influence of 0.73 &#x212b;/MW or less as defined by the following definition equation:Coefficient of external influence (Svdw)=Van der Waals surface area [&#x212b;]/molecular weight (MW).

Iridium complex, method for producing iridium complex, organic electroluminescent element, display device, and lighting device

Disclosed is an organic electroluminescent element which is characterized in that constituent layers including at least a phosphorescent light-emitting layer are provided between a pair of electrodes, and at least one of the constituent layers contains a compound represented by general formula (1). (In the formula, A, Aand Aeach represents a substituent; n1 and n2 each represents an integer of 0-3; Xand Xeach represents an oxygen atom, a sulfur atom, an alkylene group, an imino group, a carbonyl group, a sulfoxide group or a sulfonyl group, or alternatively Xrepresents a bonding hand; and Z, Z, Zand Zeach represents an optionally substituted aromatic heterocyclic ring or an aromatic hydrocarbon ring, provided that all of the Z, Z, Zand Zare not aromatic hydrocarbon rings at the same time.) 

Organic electroluminescent element, display device, illuminating device and condensed polycyclic heterocyclic compound

Disclosed is an organic electroluminescence element comprising an anode, a cathode and a plurality of organic compound layers between the anode and the cathode, provided that one of the organic compound layers is a light emitting layer containing a phosphorescence emitting compound, wherein at least one of the organic compound layers contains a compound represented by Formula (2): 

Organic electroluminescence element, new compound for the same, display device and lighting device using the same

Disclosed is an organic electroluminescence element comprising an anode, a cathode and a plurality of organic compound layers between the anode and the cathode, provided that one of the organic compound layers is a light emitting layer containing a phosphorescence emitting compound, 

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Akishima, Japan

Motoaki Sugino