Idemitsu Kosan Company, Limited

Tetsuya Masuda

Hirokatsu Ito

Yuki Nakano

Masahiro Kawamura

Masato Nakamura

Tomoki Kato

Hitoshi Kuma

Yoshiaki Takahashi

Satomi Tasaki

Masatoshi Saito

Kazuki Nishimura

Masakazu Funahashi

Kei Yoshida

Yuichiro Kawamura

Ryota Takahashi

Taro Yamaki

Takushi Shiomi

Hiroaki Itoi

Yumiko Mizuki

Emiko Kambe

Tomoharu Hayama

Hiroyuki Iwabuchi

Hiroyuki Saito

Tasuku Haketa

Takayasu Sado

Yusuke Takahashi

Ryoji Maeda

Hiroaki Toyoshima

Tomokatsu Kushida

Yoshinao Shirasaki

Compounds of formulae (2-7) or (2-9) are provided: Also provided are organic electroluminescence (EL) devices containing the compounds having a high emission efficiency when operated at low voltage and a long lifetime and electronic devices including such organic EL devices.

Organic electroluminescent element and electronic device

An organic electroluminescence device including a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer contains one or both of the compound represented by the following formula (1A) and the compound represented by the following formula (1B) and a compound represented by any one of the specific formulas (11), (21), (31), (41), (51), (61), (71), and (81).

Organic electroluminescence device and electronic apparatus equipped with the same

The compounds represented by formula (1):

Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device

An organic electroluminescent element having a further improved life; and a compound which is a novel material capable of providing the organic electroluminescent element and is represented by formula (1).

Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device

An organic electroluminescence device comprising: a cathode, an anode, and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises an emitting layer and a first layer, the first layer is disposed between the cathode and the emitting layer, the emitting layer comprises a compound represented by the following formula (1), and the first layer comprises a compound represented by the following formula (BE1):

Organic electroluminescence device and electronic apparatus provided with the same

An organic electroluminescence device including: a cathode, an anode, and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises an emitting layer and a first layer, the first layer is disposed between the cathode and the emitting layer, the emitting layer comprises one or both of a compound represented by the following formula (1A) and a compound represented by the following formula (1B), and the first layer comprises a compound represented by the following formula (BE1):

An organic electroluminescence device, comprising: an anode, an emitting layer, a first electron-transporting layer, a second electron-transporting layer and a cathode in this order, wherein the second electron-transporting layer comprises a compound represented by the following formula (1), and the emitting layer comprises a compound represented by the following formula (10).

Organic electroluminescence device and electronic apparatus

The compound represented by formula (1): wherein A, B, R, and Rare as defined in the description,provides organic electroluminescence (EL) devices having a high emission efficiency when operated at low voltage and a long lifetime and electronic devices including such organic EL devices.

A compound of the following formula (1) and others. Rto R, Rto R, Aand Aare as defined in the specification, n is an integer of 0 to 3, when Ais an (n+1)-valent residue of benzene, n is an integer of 1 or more, and when n is 0, (A)is a hydrogen atom.

A compound represented by the following formula (1), wherein Xis O or S, and two or more of Y, Yand Yare N, provided that the case where one or both of &#x2014;Ar-Arand &#x2014;Ar-Aris a p-terphenyl-3-group is excluded.

Compound and organic electroluminescence device using the same

This organic electroluminescence element includes an anode, a cathode, and an organic layer disposed between the anode and the cathode. The organic layer includes a light-emitting layer and at least one layer disposed between the light-emitting layer and the anode. The light-emitting layer includes a compound represented by formula (1), and the at least one layer disposed between the light-emitting layer and the anode includes a compound represented by formula (2). 

Organic electroluminescence element and electronic device

ABSTRACT An organic electroluminescence device includes an anode, a cathode, and at least one organic layer provided between the anode and the cathode, in which the at least one organic layer contains a first compound represented by a formula (1) and a second compound represented by a formula (2). In the formula (1), Ais a substituted or unsubstituted nitrogen-containing heterocyclic group having 5 to 24 ring atoms, and Lis a single bond, a substituted or unsubstituted divalent aryl group having 6 to 24 ring carbon atoms or a substituted or unsubstituted divalent heterocyclic group having 5 to 24 ring atoms. In the formula (2), Xis an oxygen atom or a sulfur atom. 

Organic electroluminescence element, electronic device, composition, material for organic electroluminescence element, and composition film

An organic electroluminescence device includes: an emitting region provided between a cathode and an anode; and a hole transporting zone provided between the anode and the emitting region, in which the hole transporting zone includes at least a first anode side organic layer and a second anode side organic layer, the first anode side organic layer is in direct contact with the second anode side organic layer, a total film thickness of the hole transporting zone is in a range from 20 nm to 80 nm, the first anode side organic layer contains no compound contained in the second anode side organic layer, the first anode side organic layer contains a first organic material and a second organic material, the first organic material is different from the second organic material, and a content of the first organic material in the first anode side organic layer is less than 50 mass %.

Organic electroluminescence device, light emitting device, organic electroluminescence display device and electronic device

The compound represented by formula (1): wherein A, B, R, and Rare as defined in the description, provides organic electroluminescence (EL) devices having a high emission efficiency when operated at low voltage and a long lifetime and electronic devices including such organic EL devices.

An organic electroluminescence device includes an anode, a cathode, a first emitting layer and a second emitting layer that are interposed between the anode and the cathode and are in a direct contact with each other, and a first electron transporting layer between the cathode and the first emitting layer and the second emitting layer being in a direct contact with each other. The first emitting layer contains a first compound represented by a formula (1) as a first host material, the first compound having at least one group represented by a formula (11). The second emitting layer contains a second compound represented by a formula (2) as a second host material. The first electron transporting layer contains a third compound represented by a formula (3). 

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Sodegaura, Japan

Tetsuya Masuda