Chisso Corporation

Jnc Corporation

Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo

Gunma University

Manabu Uchida

Kenji Furukawa

Takenori Izumizawa

Takaharu Nakano

Naoyuki Yoshida

Kisei Kitano

Toshihiro Koike

Masakazu Kaneoya

Yasuyuki Goto

Makoto Ushioda

Shigehiro Yamaguchi

Toshiharu Suzuki

Akiko Kageyama

Kohei Tamao

Youhei Ono

Guofang Wang

Hiroshi Yamada

Wang Guofang

Hajime Yokoi

Kazutoshi Miyazawa

Hiroshi Morita

Shinichi Sawada

Tetsuya Ogawa

Keiji Okada

Makoto Satsuki

Ayashi Noguchi

Makoto Fujiwara

Keiko Uchida

Hideyuki Matsumoto

Makota Ushioda

Masahiro Irie

Soichiro Kyushin

Keisuke Negishi

Masatoshi Kozaki

Hidefumi Oomori

Kouhei Tamao

Yuichi Fujishita

Disclosed are benzofluorene compounds of formula (1) exhibiting excellent performance when applied to an organic electroluminescent device, wherein Arand Arare aryl which may be substituted; Rand Reach are independently hydrogen, alkyl which may be substituted, cycloalkyl which may be substituted or aryl which may be substituted, and at least one of Rand Ris aryl which may be substituted; and the substituents in Ar, Ar, Rand Reach are independently selected from the group consisting of alkyl having 1 to 24 carbon atoms, cycloalkyl having 3 to 12 carbon atoms and aryl having 6 to 30 carbon atoms.

Benzofluorene compound, emission materials and organic electroluminescent device

A compound represented by the following Formula (1) is useful as an electron transport material of an organic EL device, and an organic EL device comprising the compound in the electron transport layer is long in life, and low in drive voltage: wherein G is an n-valent link, n is an integer of 2 to 4; Rto Rare each independently hydrogen, a monovalent group, or a free valency bonded with G, and Rto Rare each independently hydrogen or a monovalent group, and one of Rto Ris a free valency bonded with G; and n groups of 2,3'-bipyridyl may be the same or different with each other.

Electron transport material and organic electroluminescent device using the same

The present invention provides a novel compound represented by general formula (I) below, a method of manufacturing the same and an organic electroluminescent device employing the same: where Rto Rare independent of one another and are each a hydrogen atom or a substituent represented by general formula (II) below, and at least one of Rto Ris a substituent represented by general formula (II):&#x2014;C&#x2261;C&#x2014;SiRRR&#x2003;&#x2003;(II)where R, Rand Rare independent of one another and are each an aliphatic hydrocarbon group having 1 to 10 carbon atoms or an aromatic hydrocarbon group.

Triphenylene compounds, method of manufacturing the same and organic electroluminescent devices employing the same

Provided are an organic electroluminescent device having better performances in luminous efficiency, device life and driving voltage, a display unit equipped with the same and a lighting instrument equipped with the same. The organic electroluminescent device comprises an electron transport layer containing a specific arylamine-substituted coumarin compound.

Coumarin compound, material for light emitting device and organic electroluminescent device

A cyclic tertiary amine compound represented by a formula (1) and an organic luminescent device are disclosed. Use of the cyclic tertiary amine compound as a hole transport material, a hole injection material or an organic electroluminescent material can provide organic EL devices having high luminous efficiency and a long service life.

Cyclic tertiary amine compound and organic electroluminescent device containing the compound

A charge transporting material, a light emitting material and an organic electroluminescent device having high efficiency using a specified diazapentacene derivative represented by the following general formula (1):(in the general formula (1), Rto Reach represents independently a hydrogen atom, a halogen atom, an alkyl group of 1 to 6 carbon atoms, an alkoxy group, a substituted or not-substituted amino group, an aryl group or a heterocyclic group, in which the substituted or not-substituted aryl group or heterocyclic group, when they are adjacent with each other, may be of a structure condensed to each other, Xand Xeach represents independently an oxygen atom or a sulfur atom, and Yand Yeach represents independently a substituted or not-substituted alkyl group of 1 to 6 carbon atoms, an aryl group or a heterocyclic group).

Charge-transporting material containing diazapentacene derivative, luminescent material, and organic electroluminescent element employing these

Organic electroluminescent device

Use of an organic EL device comprising a dipyridylthiophene derivative represented by the following general formula (1) has made it possible to provide an organic EL device with high luminous efficiency at low voltage. Provided that in the formula, X is S or SO , R and R each independently represent a hydrogen atom, an alkyl group of 1-6 carbons, an alkenyl group of 2-6 carbons, an alkoxy group of 1-6 carbons, an aryloxy group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group, with the proviso that when R and R each independently represent an alkenyl, alkoxy, aryl or heterocyclic group they may be bonded together but not into a benzo condensed ring, and A and A are independently a 2-pyridyl group or 3-pyridyl group

Organic electroluminescent device comprising dipyridylthiophene derivative

Organic electroluminescent device containing dithiafulvene derivative

An organic electroluminescent device contains a specific amine derivative represented by formula (1) as a hole-transportation material or light-emitting material, to thereby produce an organic EL device of high efficacy and prolonged service life.

Amine derivative and organic electroluminescent device using the same

Diaminonaphthalene derivative and organic electroluminescent device using the same

Silole derivatives and organic electroluminescent element containing the same

A red emitting material consisting of porphyrin, wherein the fluorescence of porphyrin is utilized. Metalloporphyrin can also be used as the porphyrin. An organic electroluminescent element having a porphyrin containing light emitting. The porphyrin content in the light emitting layer may be 1.0% by weight or more. The light emitting layer functions as a hole injection and transport layer or an electron injection and transport layer. Alternatively, it may be possible to further provide a hole injection and transport layer or an electron injection and transport layer.

Red-emitting material and organic electroluminescent device made by using the same

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Yokohama, Japan

Manabu Uchida