Idemitsu Kosan Company, Limited

Idemitsu Koasn Co., Ltd.

Hirokatsu Ito

Masahiro Kawamura

Yumiko Mizuki

Tasuku Haketa

Yu Kudo

Yuichiro Kawamura

Tomoharu Hayama

Hiroyuki Saito

Tomoki Kato

Tetsuya Masuda

Hitoshi Kuma

Ryota Takahashi

Takeshi Ikeda

Yusuke Takahashi

Yuki Nakano

Taro Yamaki

Masakazu Funahashi

Yoshiaki Takahashi

Sayaka Mizutani

Kazuki Nishimura

Toshinari Ogiwara

Takayasu Sado

Yukitoshi Jinde

Tomohiro Nagao

Yoichi Ikeda

Annemarie Wolleb

Takushi Shiomi

Mitsuru Shibata

Hiroaki Itoi

Yuichi Nishimae

Shota Tanaka

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

A compound that is capable of achieving an organic EL device that has a high external quantum efficiency and a long lifetime is to be provided, and a compound represented by the following formula (1) is used (wherein in the formula, Rto R, Rto R, Rto R, Rto R, Rto R, Rto R, and Lare defined in the description).

Compound and organic electroluminescent element using same

A compound represented by formula (1) provides a high performance organic electroluminescence device and a novel material for realizing such an organic electroluminescence device: wherein Rto R, a to f, Lto L, and Ar are as defined in the description.

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

An organic electroluminescence device having an improved performance and a compound represented by formula (1), which is a novel material that enables the organic electroluminescence device:

Compound, material for organic electroluminescence device, organic electroluminescence device, and electronic device

The present invention relates to a compound represented by the formula (1): wherein Rto Rand Lto Lare those defined in the specification, and Ar is the following formula (A) or (B): wherein Rto Rand Rto Rare those defined in the specification, and Ar is one defined in the specification.

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

Provided are a compound capable of more improving the performance of organic EL devices, an organic electroluminescent device having a more improved device performance, and an electronic device including such an organic electroluminescent device; precisely, a compound represented by the following formula (1) wherein X, X, X, L, Rto R, Rto R, Rto R, Rto R, Rto R, and Rto Rare as defined in the description, an organic electroluminescent device containing the compound, and an electronic device including such an organic electroluminescent 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.

Compound having dibenzofuran and naphthalene structures, and organic electroluminescent element using same

A compound represented by the following formula (1) wherein the symbols are as defined in the description, and an organic electroluminescent device containing the compound. 

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

A compound represented by formula (A): wherein Ar, Rto R, Rto R, Rto R, Rto R, *1, and Rto Rare as defined in the description provides organic electroluminescence devices with improved device performance.

Compound, material for organic electroluminescence devices, organic electroluminescence device, and electronic device

An organic electroluminescence device having an improved performance and a compound represented by formula (1), which is a novel material that enables the organic electroluminescence device:  wherein, X, Arto Ar, Rto R, *a, and *b are the same as those defined in the specification.

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.

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Sodegaura, Japan

Hirokatsu Ito