Konica-minolta Holdings, Inc.

Konica Minolta, Inc.

Merck Patent Gmbh

Rie Katakura

Hiroshi Kita

Tatsuo Tanaka

Hideo Taka

Eisaku Katoh

Shinya Otsu

Shuichi Sugita

Noriko Yasukawa

Motoaki Sugino

Satoru Inoue

Takeshi Kojima

Kenji Goto

Tomohiro Oshiyama

Katsura Hirai

Hidekane Ozeki

Rie Fujisawa

Chiyoko Takemura

Osamu Ishige

Kunio Tani

Dai Ikemizu

Masaharu Shiraishi

Reiko Obuchi

Mayuka Hikime

Atsuko Matsuda

An organic electroluminescence element includes: an anode; a cathode; and a luminous layer. The luminous layer includes: a luminescent dopant having a reorganization energy of 0 eV to 0.7 eV in electron transition from a ground state (S) to a lowest excited triplet state (T); and a host compound having a reorganization energy of 0 eV to 0.3 eV in electron transfer reaction between a ground state (S) and an anionic radical state (AR), and having a molecular weight within a range of 500 to 3000.

Organic electroluminescence element, illumination device, and display device

This invention addresses the problem of providing a charge-transporting thin film with small variations in properties due to disturbance and small variations in resistance over time during application of current. The invention further provides a charge-transporting thin film with a secondary effect of small variations over time and stable luminescent properties. The charge-transporting thin film of the present invention contains one or more types of functional organic compounds having chiral elements, and is characterized in that the total of the number of chiral elements per molecule in each type of the functional organic compounds summed over all types of the functional organic compounds is four or more.

Charge-transporting thin film

This invention addresses the problem of providing an electronic device, organic electroluminescent device, conductive film, organic thin-film solar cell, and dye-sensitized solar cell provided with a charge-transporting thin film that exhibits excellent stability. In the presence of external disturbances, the charge-transporting thin film exhibits little in the way of fluctuations, and the resistance of the charge-transporting thin film changes little over time as current is supplied. As one of the secondary effects thereof, the charge-transporting thin film results in little in the way of changes in emission characteristics over time. This electronic device, which is provided with a charge-transporting thin film that contains one or more functional organic compounds having chiral elements, is characterized by the provision of a charge-transporting thin film wherein the total of the number of chiral elements per molecule in each type of the functional organic compounds summed over all types of the functional organic compounds is four or more.

Electronic device, organic electroluminescent element, organic thin-film solar cell, and dye-sensitized solar cell

Provided are an organic electroluminescence device which has a high luminous efficiency, a low operating voltage and a long life and which is low in a voltage rise in operation and excellent in an ageing stability and has an aptitude in production by the wet process, and a lighting equipment and a display device which are prepared by using the same. The above organic electroluminescence device is constituted from organic layers including at least a light-emitting layer which are interposed between an anode and a cathode, wherein at least one layer of the above organic layers contains a blue phosphorescent organic metal complex having a structure represented by the following Formula (1) and a compound represented by the following Formula (H1): 

Organic electroluminescence device, lighting equipment and display device

Provided is an o organic electroluminescence element comprising an anode, a cathode and a plurality of composing layers including a light emitting layer sandwiched between the anode and the cathode, wherein an electron transport layer containing the compound represented by Formula (1) is included in the composing layers; the light emitting layer contains a phosphorescence emitting organic metal complex; and the cathode or one composing layer adjacent to the cathode contains a metal or a metal compound belonging to Group 1 or Group 2 of the periodic table of elements, provided that the metal exhibits a standard electrode potential larger than &#x2212;3 V vs. SHE in a system of the metal ion (M)/the metal (M): 

Organic electroluminescent element, and illumination device and display device each comprising the element

Disclosed are: an organic EL material which emits light having a short wavelength and has high luminous efficiency and long light emission life; an organic EL element which contains the organic EL material; and a lighting device and a display device, each of which comprises the organic EL element. The organic EL material is a compound represented by Formula (1): 

Organic electroluminescent material, organic electroluminescent element, display device and lighting device

Provided is an organic electroluminescence element containing an anode, a cathode and a plurality of organic layers including a light emitting layer sandwiched between the anode and the cathode, wherein at least one of the organic layers contains: a blue phosphorescence organic metal complex which is coordinated with a ligand having a structure represented by Formula (1); and a compound represented by Formula (H1), provided that Formula (H1) includes a structure represented by Formula (H2), 

Organic electroluminescence element, lighting device and display device

Disclosed is an organic electroluminescent device having high external quantum efficiency and long life. Also disclosed are an illuminating device and a display device. The organic electroluminescent device is characterized by containing at least one compound having a partial structure represented by the following general Formula (1). [chemical formula 1] (1) In the formula, Rrepresents a group (preferably an aromatic hydrocarbon group, an aromatic heterocyclic group, an alkyl group or an alkoxy group) having 4-20 carbon atoms in total and a substituent having a formula weight or 70-350 (preferably an alkyl group or an alkoxy group): R-Rindependently represent a substituent; n2 represents a number of 0-4; n3 represents a number of 0-2; n4 represents a number of 0-8; and Q represents an atomic group necessary for forming an aromatic hydrocarbon ring or an aromatic heterocyclic ring. 

Organic electroluminescent element, display device and lighting device

In the present invention, provided is an organic electroluminescent element material having a high externally taking-out quantum efficiency, which is suitable for manufacturing an element exhibiting long light emission lifetime, and also provided is an organic electroluminescent element possessing the material, a method of manufacturing the organic electroluminescent element, and a display as well as an illuminating device fitted with the organic electroluminescent element.

Method to make organic electroluminescent element material

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

The purpose of the present invention is to provide: an organic electroluminescence element having a plurality of light-emitting dopants of different light-emitting wavelengths and emitting white light, the white-light-emitting organic electroluminescence element having excellent longevity, low-voltage driving, and chromatic stability, and also having a few dark spots; as well as an illumination device and a display device that use the element. This organic electroluminescence element contains at least one light-emitting layer sandwiched between a positive electrode and a negative electrode, the organic electroluminescence element characterized in that the light-emitting layer contribution ratio, defined as the ratio &#x394;PL/&#x394;EL of the photoluminescence intensity decay rate to the electroluminescence intensity decay rate, is 0.3 to 1.0.

Provided is an organic electroluminescent element comprising a substrate having thereon an anode, a cathode, and a plurality of organic layers sandwiched between the anode and the cathode, 

Organic electroluminescent element including a condensed aromatic heterocyclic ring compound

Disclosed is an organic electroluminescent device having high external quantum efficiency and long emission life. Also disclosed are an illuminating device and a display, each comprising such an organic electroluminescent device. The organic electroluminescent device is characterized by comprising at least an anode and a cathode on a supporting substrate, while having at least one light-emitting layer between the anode and the cathode. The organic electroluminescent device is also characterized by containing a polymer which at least partially contains a compound A having a partial structure represented by the general formula (a) below and a reactive group, and is obtained by polymerizing the compound A through the reactive group. (In the formula, Ar1 and Ar2 respectively represent an aromatic ring.) 

Provided is an organic electroluminescent element comprising a substrate having thereon an anode, a cathode, and a plurality of organic layers sandwiched between the anode and the cathode, wherein the plurality of organic layers comprise: a light emitting layer containing a phosphorescence emitting compound; and an electron transport layer containing a compound represented by Formula (1),(Ar1)n1-Y1&#x2003;&#x2003;Formula (1)wherein n1 is an integer of 1 or more; Yis a substituent when n1 is 1, and Yis a single bond or a linking group of n1 valences when n1 is two or more; Ar1 is a group represented by Formula (A), a plurality of Ar1 may be the same or different with each other when n1 is two or more; and the compound represented by Formula (1) contains at least two condensed aromatic heterocyclic rings each comprising 3 or more rings condensed with each other.

Organic electroluminescent element with electron transport layer containing condensed aromatic heterocyclic compound, display device and lighting device

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): 

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Hino, Japan

Rie Katakura