Idemitsu Kosan Company, Limited

Joled Inc.

Sony Corporation

Idemitsu Kosan., Ltd.

Masakazu Funahashi

Chishio Hosokawa

Masahiro Kawamura

Mineyuki Kubota

Yumiko Mizuki

Hidetsugu Ikeda

Tomoki Kato

Kenichi Fukuoka

Masahide Matsuura

Mitsunori Ito

Takahiro Fujiyama

Yoriyuki Takashima

Emiko Kambe

Yuichiro Kawamura

Motohisa Ido

Hiromasa Arai

Masato Nakamura

Nobuhiro Yabunouchi

Hitoshi Kuma

Ryota Takahashi

Hirokatsu Ito

Hiroshi Yamamoto

Yoshiaki Takahashi

Hisayuki Kawamura

Tadahiko Yoshinaga

Tetsuya Masuda

Kazuki Nishimura

Toshihiro Iwakuma

Tetsuya Inoue

Kiyoshi Ikeda

Sayaka Mizutani

Hidetoshi Koga

Hiroyuki Saito

Toshinari Ogiwara

Yuki Nakano

Satomi Tasaki

Takashi Arakane

Hiroshi Tokailin

Hironobu Morishita

Yukitoshi Jinde

Toshio Sakai

Hironori Kawakami

Jun Endo

Makoto Kimura

Hiroaki Toyoshima

Shoji Sudo

Chiushio Hosokawa

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 represented by formula (1): wherein Arrepresents a group represented by formula (3); Arrepresents a group selected from a group represented by formula (3) and a substituted fluorenyl group: and R, R, Rand Rare as defined in the description is provided. An electroluminescence device which contains the compound of formula (1) is also provided.

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

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

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 represented by formula (1): wherein Arand Areach represents a group represented by formula (3); and Rrepresents a naphthylphenyl group, a biphenylyl group, a terphenylyl group, a biphenylenyl group, a naphthyl group, or a phenylnaphthyl group; Rrepresents a hydrogen atom; Rand Rare as defined in the description is provided. An electroluminescence device which contains the compound of formula (1) is also provided.

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 light emitting element includes a structure in which an anode, an organic layercontaining an organic material and including a light emitting layer, and a cathodeare stacked. The light emitting layer includes, from a side of the anode to a side of the cathode, two or more light emitting regions configured to emit different colors of light. Each light emitting region contains a host material and a dopant material. An absolute value of an ionization potential of the host material contained in a light emitting region near to the cathode is larger than an absolute value of an ionization potential of the host material contained in a light emitting region near to the anode.

Light emitting element and display device

Provided are: an aromatic amine derivative in which a terminal substituent such as a dibenzofuran ring or a dibenzothiophene ring is bonded to a nitrogen atom directly or through an arylene group or the like; an organic electroluminescence device including an organic thin film layer formed of one or more layers including a light emitting layer and interposed between a cathode and an anode in which a layer of the organic thin film layer contains the aromatic amine derivative by itself or as a component of a mixture, and the device has a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.

Aromatic amine derivative and organic electroluminescent device using the same

An aromatic amine derivative represented by the following formula (1) wherein at least one of Arto Aris a heterocyclic group represented by the following formula (2) wherein Xis an oxygen atom or a sulfur atom. 

Aromatic amine derivative, and organic electroluminescent element comprising the same

A compound represented by formula (A-0) or (B-0) is useful as a material for organic EL devices which realizes an organic EL device exhibiting high emission efficiency even when driving at a low voltage and has a long lifetime: wherein Rto R, n1, m2, k3, k4, n5, m6, k7, k8, Lto L, and Ar are as defined in the description.

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

An organic EL device capable of driving at low voltage and having high emission efficiency and long lifetime and a material for organic EL devices which realize such an organic EL device are provided. The material for organic EL devices is a compound represented by formula (A1) or (B1): wherein Rto R, n1, m2, k3, k4, n5, m6, Lto L, and Ar are as defined in the description.

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

An organic electroluminescence composition including two or more compounds each having a specific structure combining a hole transporting ability and an electron transporting ability; an organic electroluminescence composition including one or more compounds each having a specific structure combining a hole transporting ability and an electron transporting ability and a different compound having an electron transporting skeleton; and a material for organic electroluminescence devices, a solution of a material for organic electroluminescence devices and an organic electroluminescence device, each including the aromatic heterocyclic derivative.

Organic electroluminescence composition, material for organic electroluminescence element, solution of material for organic electroluminescence element, and organic electroluminescence element

A compound represented by formula (1) is useful as a material for organic EL devices which realizes an organic EL device exhibiting high emission efficiency even when driving at a low voltage and has a long lifetime: wherein Rto R, Lto L, Arto Ar, m1 to m3, and k4 are as defined in the description.

An organic electroluminescence device including: an anode; a cathode; two or more emitting units that are disposed between the anode and the cathode, each unit having an emitting layer; and a charge-generating layer that is disposed between the emitting units, wherein the charge-generating layer includes an N layer nearer to the anode and a P layer nearer to the cathode, and the N layer includes a compound represented by the following formula (I) or (II): 

Organic electroluminescent device

Growing community of inventors

Sodegaura, Japan

Masakazu Funahashi