Idemitsu Kosan Company, Limited

Idemitsu Kosan., Ltd.

Hidetsugu Ikeda

Chishio Hosokawa

Yuki Nakano

Ryota Takahashi

Toshihiro Iwakuma

Masakazu Funahashi

Keita Seda

Masahide Matsuura

Takashi Arakane

Tomoki Kato

Seiji Tomita

Motohisa Ido

Hiroshi Yamamoto

Hisayuki Kawamura

Hiroaki Nakamura

Hiromasa Arai

Hidetoshi Koga

Sanae Tagami

Kenichi Fukuoka

Mitsuru Eida

Peter Murer

Carsten Rothe

Thomas Schaefer

Tadashi Kusumoto

Hideaki Nagashima

Hisahiro Higashi

Yoshio Hironaka

Jun Tsuchiya

Masahiro Kawamura

Yuichiro Kawamura

Satomi Tasaki

Masatoshi Saito

Mineyuki Kubota

Kota Terai

Masashi Sakamoto

Hideki Kamano

Hirofumi Kondo

Ryoji Maeda

Masatoshi Saitou

Yoichi Ikeda

Naoki Kurihara

Chiushio Hosokawa

Yoshinori Yanagisawa

An organic electroluminescence device comprising:

Organic electroluminescence device and novel compound

A compound represented by the following formula (1), wherein in the formula (1), at least one of Rto Ris a group represented by the following formula (2).

Compound and organic electroluminescence device

A compound having a structure represented by the following formulas (a) and (b):

Organic EL devices having excellent performance and electronic devices comprising the organic EL devices are provided. The organic EL device comprises a cathode, an anode, and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises one or more layers that comprise a fluorescent emitting layer and the fluorescent emitting layer comprises a first compound represented by formula (P) and a second compound that is not the same as the first compound. The electronic device comprises the organic EL device. wherein, π1, π2, Z, R, R, m, and n are as defined in the description.

Organic electroluminescence element and electronic device

A compound represented by formula (1) as defined, wherein in any one pair selected from Rand R, Rand R, and Rand R, one member represents a single bond bonded to *a of a group represented by the formula (11), and the other member represents a single bond bonded to *b, in any one pair selected from Rand R, Rand R, Rand R, Rand R, and Rand R, one member represents a single bond bonded to *a of a group represented by the formula (11) and the other member represents a single bond bonded to *b, or one member represents a single bond bonded to *c of a group represented by the formula (21), and the other member represents a single bond bonded to *d, and Rto Rexcept for the single bonds, Ar, and Rto Rare defined.

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

An organic electroluminescence device comprising: 

Disclosed herein are compounds capable of producing organic electroluminescence (EL) devices having excellent properties, organic EL devices comprising the compounds, and electronic devices comprising the organic EL devices. The compounds of this disclosure are represented by formula (1) below, where A, B, C, and Rto Rare defined herein. 

Compound, organic electroluminescence device and electronic device

A material for organic electroluminescence devices comprising a compound having a specific structure and an organic electroluminescence device comprising an organic thin film layer which comprises one layer or a plurality of layers comprising at least a light emitting layer and disposed between a cathode and an anode, wherein at least one layer in the organic thin film layer comprises the material for organic electroluminescence devices, are provided. The material provides the organic electroluminescence device exhibiting a great efficiency of light emission, having no defect pixels, exhibiting excellent heat resistance and having a long life.

Material for organic electroluminescence device and electroluminescence device employing the same

A compound represented by the following formula (1), wherein one or more pairs among Rand R, Rand R, Rand R, Rand R, Rand R, and Rand Rindependently form a ring represented by the following formula (2A) or a ring represented by the following formula (2B), or do not form a ring represented by the following formula (2A) and do not form a ring represented by the following formula (2B); and one of Rto Ris bonded with L. 

Compounds for organic electroluminescence device

A compound represented by the formula (1) below. At least one set of two or more adjacent groups among Rto Rforms a substituted or unsubstituted heterocyclic ring, or forms a ring represented by the formula (2) below, or at least one of Rto Ris a group represented by the formula (3) below. 

Disclosed is a compound useful as a material for an organic electroluminescence device with high luminous efficiency. A compound is represented by the following formula (1) or (2): 

To provide an organic electroluminescence device having a high luminous efficiency and a novel compound that can be used as a material for an organic electroluminescence device having a high luminous efficiency. A compound represented by the following formula (1) or (2): 

To provide a compound represented by the following formula (1-5).  Two of *1 are fused with a group represented by the formula (1A) to form a nitrogen atom-containing five-membered ring; and two of *2 are fused with a group represented by the formula (1A), which is different from the group bonded with the two of *1, to form a nitrogen atom-containing five-membered ring.

Growing community of inventors

Sodegaura, Japan

Hidetsugu Ikeda